Spring

March – April – May

Spring is the official welcome to the gardeners New Year; the days will now start to lengthen, and as a stronger sun dries out the soil, it’s time to get your garden underway ready for the year ahead.

Unfortunately, we cannot control the weather, but by planning, we can start to leave the Winter behind and bring Spring forward a little, choosing the best plants, brightening our gardens and finally planting them bulbs you’ve been waiting for.

This article and guide will not only advise you on what needs completing in your garden but also for your house plants, patio, ponds and everything else we can think of for this new season ahead of us; these are now the eight-month of active seasons, and we cannot wait!

Quick View by Category

General Tasks and Maintenance

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March – Early Spring

April – Mid Spring

May – Late Spring

Gardens and in the Garden

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March – Early Spring

April – Mid Spring

May- Late Spring

Trees, Shrubs and Hedges

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March – Early Spring

April – Mid Spring

May- Late Spring

Greenhouse and Cloches

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

Lawn

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

House Plants

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

Kitchen Garden

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

Flowers and Plants

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

Pond, Water plants and Rock plants

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May- Late Spring

Wildlife

Click on the links below to be directed to the individual month’s tasks.

 

March – Early Spring

April – Mid Spring

May – Late Spring

March - Early Spring

Woo, it’s March, and Spring is on our doorstep! Now that there is more sun throughout the day, you now can complete a range of gardening tasks. This month we see the clocks typically going forward one hour to accommodate longer sunlight hours. However, these long hours of light bring an increased number of tasks in the garden.

March is a bit of a mixed bag regarding weather and can change quite quickly with sharp frosts and snow not entirely behind us. The good news is that temperatures are generally rising, and Summer is getting closer!

Border and Rock plants

      • Bergenia
      • Chionodoxa
      • Crocus
      • Eranthis
      • Erythronium
      • Galanthus
      • Helleborus
      • Hyacinthus
      • Iris
      • Muscari
      • Narcissus
      • Polyanthus
      • Saxifraga
      • Scilla
      • Tulipa kaufmanniana

Trees and Shrubs

      • Camellia japonica
      • Chaenomeles japonica
      • Corylopsis
      • Daphne mezereum
      • Forsythia
      • Hamamelis
      • Lonicera fragrantissima
      • Magnolia stellata
      • Mahonia
      • Parrotia
      • Pieris japonica
      • Prunus cerasifera
      • Spiraea thunbergii

Houseplants

      • Aphelandra
      • Begonia semperflorens
      • Cyclamen persicum
      • Impatiens Petersiana
      • Saintpaulia

In the Greenhouse

      • Calceolaria
      • Cineraria
      • Clivia
      • Freesia
      • Hippeastrum
      • Mimosa
      • Primula

Early Spring

General Tasks and Maintenance

  • Complete any general digging in beds and borders.
  • Use weed killer to kill weeds on paths and driveways.
  • Place slug pellets under the foliage of susceptible plants.
  • Ensure plants are securely tied up. 
  • When watering – rainfall is the best type of water for flowers as tap water is slightly alkaline. Alternatively, use water from a water butt that can be attached to your home’s gutters, an outhouse or greenhouse to collect the water. It saves on your water bills and is also better for your plants.
  • Complete ordering your seeds as soon as possible, some varieties may be in short supply, and it’s best to get them before they sell out.
  • Additionally, those that after inspection will need repotting, if needed, in a pot one size larger.
  • It’s a good idea to have a tidy up of your garden, removing debris, especially around flower borders and beds, ensuring that they are back to their bare soil. Place organic debris/leaves into a compost pile or a bin to break down. 
  • Whilst doing this, it’s good to remove any weeds you can see around; and make sure that these are either burnt or added to a brown bin. To prevent long term problems, make sure you don’t compost these weeds as seeds, as they can call germination problems.
  • With all this cleaning, it’s the perfect time to get your compost area ready; you can either make your own with wood that adds a natural look to your garden; but if you don’t have time, you can also buy a ready-made compost bin.

Early Spring

Houseplants

  • Give a little more water to plants as the days are lengthening. 
  • Move delicate plants or those in flower from south-facing to west-facing windows. 
  • Apply liquid fertiliser sparingly to plants in bud or flower.
  • Prune climbers by cutting out weak or diseased shoots. Tie in long growths and remove dead leaves.
  • Pot on plants that have become too big for their pots. 

Early Spring

Gardens and in the Garden

Patio areas

  • Purchase and choose pots and containers that will be suitable for patio gardening.
  • Ensure window boxes are securely fastened and that drip trays are added.
  • Position container plants to prominent positions to allow growth, and flowers pollinate and Bloom.
  • Ensure wooden boxes and planters are treated/painted and maintain if required.
  • Use drainage solutions such as crocks and polystyrene at the bottom of containers before adding soil.

Early Spring

Kitchen Garden

Fruit 

    • Plan your fruit garden and plant out when the weather conditions allow.
    • Firm up any soil around trees that the frost may have loosened.
    • Complete pruning of any trees and bushes.
    • Feed any bushes and trees that are established.
    • Spray fruit trees such as apples, cherries, damsons, nectarines, pear, plums and peaches.
    • Train any new shoots that form on loganberries and blackberries.
    • Plant raspberries and strawberries.

Vegetables

    • Sow Brussel sprouts seeds for your maincrop. 
    • Sow Parsnips
    • Plant early potatoes in the south during the middle of the month. 
    • Sow Salad Onions.
    • Sow Radishes.
    • Sow late Summer Cabbage seeds.
    • Sow early variety Peas
    • Sow leeks.
    • Sow Summer varieties of Spinach.
    • Continue to sow Shallots.
    • Plant Asparagus and dress the beds with manure.
    • Plant Jerusalem Artichokes.
    • In the Greenhouse – Sow Carrots

Herbs

    • Prepare the seedbed when the temperature increases.
    • Sow chervil, chives, dill, parsley and sorrel in small quantities.
    • Split up bergamot and sorrel.
    • In the greenhouse – Sow Basil into a propagation box and keep at 13-15 degrees.

Early Spring

Trees, Shrubs and Hedges

  • During good weather, plant deciduous trees and shrubs.
  • Top dress new and young plants using peat, compost and manure. 
  • Plant out wall climbing plants and clematis.
  • Plant evergreens at the end of the month.
  • In the greenhouse 
      • Sow seeds of clematis and other shrubs in a cold frame or a cool greenhouse. 
      • Prick out seedlings into small pots. 
      • Water well during dry weather. 
  • Prune shrubs damaged from the cold weather by cutting out the deadwood.
  • Hedges
      • Plant all types of hedges apart from broad-leaved evergreens.
      • Space evenly and ensure the holes are dug big enough for the roots.
      • Remove any weeds.

Early Spring

Flowers / Plants

Hardy Herbaceous Plants

    • During a dry day, dig and rake over the ground and spread fertiliser.
    • Purchase new plants from trusted websites and nurseries and put the roots in water if the new plants are dry.
    • During mild weather, plant seedlings, plant new plants and replant anything you have been waiting to do.
    • Dig out any weeds that you notice.
    • Keep an eye out for slugs.

Perennials

Carnations and Pinks

    • Order seeds and plants.
    • Prepare beds for the Spring.
    • Plants that you planted in the Autumn scatter with potash or ash.
    • Spray against caterpillars, aphids, thrips and carnation flies.
    • In the greenhouse – pick out seedlings of carnations. Spray against common pests.

Chrysanthemums

    • Prepare the ground by digging over and adding manure to prepare for April/May. 
    • Test the soil acidity.
    • In the greenhouse – If you live in the south, you can move your plants from the greenhouse to a cold frame. Begin to take cuttings and root them into pots.

Dahlias

    • Prepare the ground, adding bone-meal.
    • Choose a place in your garden where your Dahlias can get full sun and aren’t competing against other plants.
    • In the greenhouse – bring old tubers out from storage and spray with water to encourage new growth. Sow Dahlia seeds. 

Gladioli

    • Plant gladiolus corms in border beds roughly 2 inches deep. Plant in successions to create continuous flowering.

Irises

    • Pull off any dead leaves and compost.
    • Dig over the soil around the plant, apply fertiliser and sprinkle slug pellets.
    • If you notice diseased plants, remove the affected parts and burn (do not compost).

Lilies

    • Protect from frost by placing it into cloches or the greenhouse.
    • If you live in the south, you can begin to sow lily seeds.
    • Plant out lily bulbs 
    • In the greenhouse
      • Stop feeding lilies when the buds are beginning to open.

Roses

This season for your roses is all about preparation; all the effort that you put in now will mean that in the growing season, you will hopefully see yourself with fewer problems, youthful growth, strong, shapely bushes and masses of blooms. 

        • Complete planting of roses. “For the best results, plant roses on a calm, cloudy day. Planting on a hot, sunny day or during a summer heatwave can stress a rose bush or any type of plant,” says Bedard.
        • Cut out any diseased and frost-damaged leaves and stems from all of your roses.
        • Feed your Roses with Epsom salts and magnesium.
        • Roses have a tendency to get fungus diseases. Ensure that you purchase disease-resistant plants that are suited to your area. Spraying in the Spring is something to be considered.
        • Lime sulfur is a good choice for spring spraying. It will generally kill any fungus spores like “black spot” that may have overwintered. 
        • An additional spray of horticultural oil will smother any insect eggs and larva.

Annuals

Alpines

    • Firm up soil around plants if the frost has loosened the soil.
    • Put slug pellets under foliage.
    • Plant any purchased alpine plants.
    • In the greenhouse – plant out root cuttings into pots. Sow seeds and keep them in a cold greenhouse or frame. 

Bulbs

    • Now is the time you can appreciate bulbs and the colour they bring to the garden.
    • Remove flower heads from daffodils when they finish flowering.
    • Plant out bulbs that have finished flowering
    • Split and replant Snowdrops.
    • In the greenhouse – Water and feed flowering Hippeastrums and clivias. 

Flowers from Seed

    • Purchase flower seeds for the upcoming year. 
    • Plant out hardy perennials that you grew from seed.
    • Prepare the outside flower beds digging over the soil, and adding fertiliser.
    • Sow seeds in rows thinly and thin out further when 2 to 3 leaves are showing.
    • In the Greenhouse – Sow half-hardy annuals. Protect tender plants from any frosty weather.

Heathers

    • Prepare the soil by removing weeds, digging over and adding peat and bone-meal fertiliser.
    • Plant heathers between now and May in an open position with neutral or acid soil (except species that are lime tolerant)
    • Propagate heather by taking cuttings. 

Rhododendrons and Azaleas

    • Prepare the ground, ready for planting.
    • Begin planting as soon as the weather has warmed up and the temperature stays above freezing.
    • Keep new plants well watered.

Sweet peas

    • Plant out seedlings sown in the Autumn.
    • Place slug pellets around plants.
    • In the greenhouse – Sow seeds for the Spring.

Early Spring

Greenhouse and Cloches

Spring is the perfect time to clean everything up; to ready your greenhouse by giving it a good clean – cleaning the algae and other grime from the outside with disinfectant or detergent; this will help let in more light during summer. 

Cleaning the inside is also a good idea, especially making sure you try to clean everywhere as pests and diseases from Winter can and will survive anywhere they can.

Owners of a greenhouse can start sowing seeds indoors; the best plants to start sowing are alyssum, nemsia, stocks, asters, marigolds and petunias.

    • Pot on any over-wintered annuals.
    • Remove any dead and old wood from plant shoots. 
    • Begin to sow tomatoes in the greenhouse.
    • Prick out seedlings as and when required.
    • Control pests by spraying regularly.
    • Plant hippeastrum bulbs into pots.
    • Pot on Begonias and gloxinias. 
    • Ensure there is sufficient ventilation and feed with liquid plant food.

Early Spring

Pond, water plants and Rock Plants

If you notice ice still on the surface of your pond, you mustn’t start cleaning! Likewise, never try to speed up its thawing process by removing the ice from the pond. This ice still means that your pond is in ‘winter mode’, so it is best to wait. 

The second method we recommend is with a pond thermometer; if the water is below 10°c, you should wait before removing heaters, adding beneficial bacteria. Once the temperature has risen above 10°c and there is no more ice, your fish should become slightly more active – it is now safe to start your maintenance, feeding fish slowly adding more in relation to the temperature. 

  • Clean, clean, clean! Do this as early as possible, ideally before plants develop and pond creatures begin to breed. This clean should remove any debris or sludge built up at the bottom over the winter months. It is also good to note that leaving a small amount of this will provide good bacteria for your garden. 
  • During a frost-free day, remove ¾ of the water and replace it with fresh water.
  • Take netting off the pond. If you didn’t place mesh over your pond during the Winter, remove debris like leaves.
  • Remove any old foliage from pond plants and any algae.
  • Remove any pond heaters and add pumps and lighting systems.
  • Looking after your Pond Fish – Now is a good time for treating your fish for parasites or any infections that they may have; during the winter months, some fish such as koi tend to slow down it makes them more vulnerable. We recommend using praziquantel – eliminating internal and external parasites and bonuses you can also use in your winter routine! For the treatment of your fish with bacterial infections, open sores, damaged fins, or ulcers, we recommend a bacterial infection remedy – ‘API Pond Melafix, Fish Bacterial Infection Remedy’.
  • Begin to start feeding your fish again – little and often. 
  • Plants will now respond and grow well as the water starts to warm up. If you already have new pond plants, begin to plant them in mild areas or leave until late Spring if you are in a colder place. 
  • If you haven’t managed to order any new aquatic plants, start to have a look online or in garden centres.

Early Spring

Lawn

Now that early Spring is upon us, and it’s time to catch-up on any maintenance or repair work that you missed or couldn’t do in Autumn. It’s time to get your lawn back on track and come to life.

New lawn

    • Rake the seedbed and apply lawn fertiliser. Sow lawn seed following the instructions on the packaging.
    • Mow the lawn when roughly 3 inches in length. 

An established lawn

    • Apply seeds to any areas of grass that are worn.
    • Keep moss down by ensuring sufficient drainage and rake areas where there’s a lot of moss.
    • The grass will begin to start growing again, mow the lawn regularly. 
    • For the first few cuts, if your lawnmower allows, set to the highest setting to keep the grass greener.

Early Spring

Wildlife

  • To prepare for the Spring broods, clean and repair or purchase nesting boxes that you have around your garden. 
  • Attach any new bird boxes to the north side of trees.

April - Mid Spring

Spring begins to spread further across the country, and we continue to see a colourful display of Spring bulbs.
The weather is very similar to March, and temperature differences between north and south are narrow.
Your garden may experience morning frost and occasional flutters of snow and sleet, so consider should you wish to plant out tender plants.
April is a busy time in the garden.

Border and Rock plants

    • Alyssum
    • Arabis
    • Aubrieta
    • Bergenia
    • Cheiranthus
    • Convallaria
    • Dicentra
    • Doronicum
    • Erythronium
    • Fritillaria
    • Gentiana
    • Helleborus corsicus
    • Hyacinthus
    • Leucojum
    • Lunaria
    • Muscari
    • Narcissus
    • Primula
    • Pulsatilla
    • Saxifraga
    • Sparaxis
    • Triteleia
    • Tulipa

Trees and Shrubs

    • Amelanchier
    • Aucuba japonica
    • Berberis darwinii
    • Camellia japonica
    • Chaenomeles japonica
    • Clematis armandii
    • Cytisus scoparius
    • Forsythia
    • Fothergilla
    • Mongolia
    • Malus
    • Pieris forrestii
    • Prunus
    • Rhododendron
    • Ribes
    • Spiraea arguta
    • Spiraea thunbergii
    • Viburnum

Water plants

    • Caltha
    • Orontium

In the Greenhouse

    • Acacia
    • Calceolaria
    • Hippeastrum
    • Primula

Houseplants

    • Anthurium
    • Begonia
    • Cyclamen
    • Impatiens
    • Solanum
    • Zygocactus

Mid Spring

General Tasks and Maintenance

  • Mulch the beds and plant borders.
  • Remove weeds in the garden using a hoe. 
  • Purchase seeds – tomatoes, dahlias and antirrhinums.

Mid Spring

Houseplants

  • Remove dead leaves and wash off the dust from leaves. 
  • Increase the amount of watering. 
  • Water cacti for the first time of the year.
  • Give liquid fertiliser to all plants.

Mid Spring

Gardens and in the Garden

Patio areas

    • Complete the preparation of boxes, tubs and pots.
    • Sow hardy annuals seeds.

Mid Spring

Kitchen Garden

Fruit
    • Keep an eye on pests and spray if required.
    • Protect wall trees and bushes against the frost.
    • Plant late-flowering strawberries.
    • Check fruit trees and tied up and are secure. 
    • Spray nectarine and peach flowers with water to help setting.
Vegetables
    • Plant onion sets.
    • Sow salad crops.
    • Plant early potatoes.
    • Sow late summer cauliflowers.
    • Sow maincrop carrots
    • Sow beetroot.
    • Plant out late summer cabbages. 
    • Sow winter cabbages.
    • Order tomato plants to grow outdoors from June onwards.
    • Put manure and compost around globe artichokes.
    • In the Greenhouse
      • Sow French beans.
Herbs
    • Sow fennel, thyme, parsley and dill in small quantities.
    • Control weeds in your herb garden.
    • Plant out cuttings taken of lavender, rosemary, bay, mint and sage.
    • Plant violets around the edges of your herb garden.
    • In the Greenhouse
        • Sow more Basil.

Mid Spring

Trees, Shrubs and Hedges

  • During wet weather, plant evergreen shrubs.
  • Plant pot grown wall shrubs. 
  • Water newly established shrubs and trees. Use grass cuttings as mulch.
  • Layer hydrangea shoots with peaty soil.
  • Layer magnolia shoots with peaty soil.
  • Lightly prune shrubs and trees that have finished flowering.
  • Remove weak shoots of evergreen plants.
  • Plant evergreen hedging plants.
  • Continue to weed underneath trees, shrubs and hedges.

*Mid Spring

Flowers / Plants

Hardy Herbaceous plants

  • Plant out any late flowering hardy herbaceous plants.
  • Hoe and give around plants to help control the number of weeds.
  • Tie up delphiniums.

Perennials

Carnations and Pinks

    • Continue to plant carnations and pinks.
    • Add fertiliser to plants.
    • Spray with insecticide regularly to keep pests down. 
    • In the greenhouse
      • Sow border carnation and pink seeds.
      • Perpetual flowering carnation plants that you have purchased, place in the greenhouse.
      • Support plants with bamboo canes.
      • Water sparingly.

Chrysanthemums 

    • Rake general fertiliser into the soil to help prepare the soil for planting.
    • Move outdoor-flowering varieties outside if they are in pots.
    • In the Greenhouse – Purchase good quality compost to be prepared for the final potting on of greenhouse varieties. Use pesticide to control aphids and leaf miners.

Dahlias

    • At the end of the month, plant out healthy tubers that are still dormant.
    • Prepare the soil ready for young plants.
    • Protect new shoots from frost when shoots appear.
    • In the greenhouse – Take cuttings/plant seeds and protect with newspaper during the evenings and allow ventilation during the day.

Gladioli 

    • Dig over and hoe the soil adding in blood, fish and bone mix.

Irises

    • Cut the flower blooms in the morning, stand them in a vase of hot water and then transfer them into cold water.
    • When early-flowering varieties have finished blooming, remove the stems. 
    • Continue to spread slug pellets.
    • Keep an eye out for leaf spot disease and spray with a pesticide containing Zineb.

Lilies

    • Finish bulb planting.
    • Weed the beds regularly.
    • Spray insecticide every two weeks to control aphids.
    • In the greenhouse – Sow seeds. Spray plants with insecticide every two weeks to control aphids.

Roses

    • Purchase Rose plants from reputable sellers.
    • Complete pruning of rose bushes.
    • Mix Rose fertiliser into the soil
    • Tie up any new growth of your rose plants to a wall, structure or garden obelisk.
    • Water well during any dry weather spells.
    • Put grass cuttings around rose bushes or mulch.
    • In the greenhouse – keep the temperature around 18-22 degrees during the days and 14 – 18 degrees at night. Water plants regularly and apply fertiliser once a week. 

Annuals

Alpines

    • Replant alpines that don’t look healthy or have been lifted out of the ground. 
    • Dig over the soil and apply general fertiliser.
    • In the greenhouse
      • Prick out seedlings you have grown from seed in December.

Bulbs

    • Weed tulip and daffodil beds by hand.
    • Remove flowers when the flowers begin to fade down.

Flowers from seed

    • Make your final purchases of seeds.
    • Sow hardy annuals outdoors.
    • In the greenhouse
      • Sow half-hardy annuals
      • Any tender plants, place in the greenhouse or cold frame to protect from any frost.
      • Spray insecticide if you notice aphids or thrips.
      • Feed plants if leaves begin to yellow.

Heather

    • Complete any remaining planting. 
    • Cut back any plants that have finished flowering.

Rhododendrons and Azaleas

    • Transplant plants that need to be moved.
    • Plant new bushes.
    • Water plants during dry weather.
    • Remove dead heads.

Sweet peas

    • Plant out seedlings.
    • Restrict the growth by cutting side shoots and tendrils. 

Mid Spring

Greenhouse and Cloches

  • During sunny days, protect young seedlings and newly planted plants away from direct sunlight and ensure well ventilated.
  • Continue to water newly potted plants. 
  • Feed well-established plants.
  • Tomatoes – Plant tomatoes in a cool greenhouse and support them using canes. Sow outdoor tomato seeds.
  • Pot on gloxinias and begonias.
  • Sow melons, cucumbers and sweetcorn. 
  • Spread slug pellets. 

Mid Spring

Pond, water plants and Rock Plants

  • Begin planting when the weather starts to improve.

Mid Spring

Lawn

Established Lawn

    • Control isolated weeds by spot treating with a liquid or gel weedkiller.
    • Apply Spring fertiliser.
    • Mow as and when required.

New lawn

    • This is a good time of the year to lay a new lawn.
    • Mow twice a week if required.

Mid Spring

Wildlife

  • Put out bird food for parent birds to feed their young.
  • Ensure your bird feeders are well stocked in your garden.

May - Late Spring

The month of blossoms, days of warm sunny weather and your garden full of colour! A perfect time to reflect on your hard work during the early part of the year. However, there is plenty of work to keep you on your feet.

Border and rock plants

    • Achillea
    • Ajuga
    • Aquilegia
    • Aubrieta
    • Bergenia
    • Calendula
    • Campanula
    • Centaurea
    • Cheiranthus
    • Convallaria
    • Convolvulus
    • Dicentra
    • Fritillaria
    • Gaillardia
    • Gentiana
    • Geranium endressii
    • Geum
    • Gypsophila
    • Iberis
    • Myosotis
    • Nigella
    • Paeonia
    • Papaver
    • Phlox subulata
    • Pulsatilla
    • Pyrethrum
    • Scilla
    • Tiarella
    • Trollius
    • Tulipa
    • Veronica
    • Vinca

Trees and Shrubs

    • Aesculus hippocastanum
    • Azalea
    • Buddleia globosa
    • Choisya
    • Cistus
    • Clematis Montana
    • Crataegus
    • Deutzia
    • Fothergilla
    • Genista
    • Laburnum
    • Malus
    • Paeonia
    • Pernettya
    • Pieris
    • Rhododendron
    • Syriga
    • Viburnum
    • Weigela
    • Wisteria

Water plants

    • Calla
    • Caltha
    • Hottonia
    • Orontium

Greenhouse

    • Calceolaria
    • Cineraria
    • Pelargonium
    • Primula
    • Schizanthus

Houseplants

    • Aphelandra
    • Chlorophytum
    • Euphorbia pulcherrima
    • Saintpaulia
    • Saxifraga stolonifera
    • Spathiphyllum wallisii

Late Spring

General Tasks and Maintenance

  • Keep plants well-watered as the temperature increases.
  • Remove suckers from fruit trees/bushes and lilacs.
  • Control slugs using slug pellets.
  • Spray fruit trees/bushes, roses and broad beans against caterpillars and aphids.
  • Apply liquid fertiliser to plants to provide them with the relevant nutrients.

Late Spring

Houseplants

  • Water all plants regularly from now until Autumn. 
  • Apply liquid fertiliser on house plants. 
  • Re-pot any old plants that require repotting.

Late Spring

Gardens and in the Garden

Patio areas

  • Plant tender plants into pots and containers.
  • Complete sowing of any hardy annuals.
  • Lift any spring-flowering bulbs after flowering and plant them into your garden. 
  • Plant hanging baskets and put them into position.Water well during dry weather.

Late Spring

Kitchen Garden

Fruit
    • Keep an eye out for any pests and control with pesticide spray.
    • Water fruit trees and bushes during dry weather. 
    • Bark ring Apples and Pears to encourage fruiting. 
    • Feed all fruit trees and bushes and spray with an insecticide to keep pests down.
    • Raspberries – Mulch and remove any excess shoots.
    • Strawberries – Protect fruits using straw and spread slug pellets.
    • Begin to Summer prune vines.
Vegetables
    • Potatoes – Cover plants if there is a risk of frost.
    • Prepare beds ready for growing Pumpkins and Marrows. Sow seeds later on in the month. 
    • Tomatoes – prepare the ground for outdoor tomatoes.
    • Brussel Sprouts – plant out.
    • Sow follow on amounts of summer spinach and salad crops. 
    • Beetroot – Sow long rooted varieties.
    • Runner beans – Sow in the greenhouse and build a structure outside to allow them to climb when planted outdoors.
    • French Beans – Sow outdoors.
    • Asparagus – Continue to cut.
    • Sow sweetcorn. 
    • Remove cloches for broad beans, carrots, cabbages and lettuces.
    • In the greenhouse – Prepare the area to plant out your cucumbers.
Herbs
    • Continue to sow more dill, fennel, parsley and chervil. 
    • Plant out basil seedlings and place them into drills.
    • Take cuttings of Sage, Rosemary and Thyme.

Late Spring

Trees, Shrubs and Hedges

  • Begin to plant out shrubs that are tender and ensure that they are well watered.
  • Continue to plant evergreens.
  • Mulch Lilacs keep them to just one stem as this will help them flower.
  • Prune dead heads/flowers. Remove any dead wood.
  • Begin trimming of hedges to keep their shape up until September. Use sheeting to catch any cuttings so that they can be composted.
  • Water hedges during dry weather and hoe regularly to keep the weeds down. 

Late Spring

Flowers / Plants

Hardy Herbaceous plants

    • Control weeds by hoeing between plants.
    • Stake up any plants that are growing tall.
    • Water newly planted beds.

Perennials

Carnations and Pinks

    • Support plants with canes and stakes if needed.
    • Plant out annual carnations.
    • Spray plants when you see signs of pests and diseases.
    • In the greenhouse
      • Pot on perpetual flowering carnations.
      • Shade the glass during hot weather.
      • Cut blooms and disbud flower stems after flowering.
      • Sow seeds
      • Take action as and when against pests and diseases.

Chrysanthemums

      • Plant out outdoor flowering varieties.
      • Put slug pellets under the plants.
      • Discard seriously damaged stools that have overwintered outdoors.
      • Fertilise, well water and lightly fork over the bed.

Dahlias

      • When the frost has gone, plant out young dahlias.
      • Protect young plants if required.
      • In the greenhouse
        • Keep rooted cuttings in a cold frame and ensure well watered.
        • Look out for aphids and spray with insecticide. 

Gladioli

      • Water well during dry weather. 
      • Hoe over the soil regularly. 

Irises

      • Remove dead flowers. 
      • Water during dry weather.
      • Purchase bearded varieties ready to plant out in July and August.
      • Scatter slug pellets under plants.
      • Cut bearded irises for flower arranging. 
      • Check bearded irises for leaf spot disease.

Lilies

      • Spray insecticide against aphids.
      • Keep an eye out for basal rot and fusarium disease.
      • In the greenhouse
        • Keep aphids down by spraying insecticide.

Roses

      • Greenfly – spray with insecticide.
      • Black spot – spray with captan.
      • Mildew – spray with dinocap.
      • Rust – Spray with Zineb.
      • Black spot or mildew – spray with benomyl.
      • Remove any leaves that have rolled up due to sawflies or caterpillars.

Annuals

Alpines

      • Control weeds by pulling by hand or hoeing.
      • Trim plants after flowering to prevent seeding.

Bulbs

      • Remove dead flowers from hyacinths and daffodils.
      • Weed rows and water during dry weather.

Flowers from seed

      • Sow hardy and half-hardy annuals.
      • When the frost has gone, plant out half-hardy annuals.
      • Water the beds and borders before planting.
      • In the greenhouse
        • Move half-hardy annuals to cold frames/greenhouse.
        • If plants begin to turn yellow, feed with fertiliser.
        • Prick out any seedlings when they are large enough to transplant.

Heathers

      • Complete planting of heathers.
      • Mulch the plants.

Rhododendrons and Azaleas

      • Prune any dead flowers. 
      • Water new bushes when the weather is dry.
      • Mulch the plants and bushes. 

Sweet peas

      • Mulch plants during dry weather.
      • Create a climbing structure/obelisk to allow sweet peas to climb up.
      • Hoe around the plants regularly.

Late Spring

Greenhouse and Cloches

  • Sow cucumbers, melon and sweet corn. 
  • Sow Cineraria seeds for winter flowers.
  • On warm days, shade plants using greenhouse blinds or bubble wrap. 
  • Provide weekly feed for your plants.
  • Water frequently plants when the weather improves. 
  • Support any tall plants using canes and bamboo sticks.
  • Tomatoes – support plants, water, and feed regularly. Remove side shoots as and when you see them.

Late Spring

Pond, water plants and Rock Plants

  • Plant all water plants.
  • Remove algae with a small fishing net.
  • Thin out any overgrown water lilies and replant if you have room for them.

Late Spring

Lawn

New Lawn

    • Cultivate any new areas ready for autumn sowing. 

Established Lawns

    • Feed with lawn feed.
    • Continue to mow the lawn regularly.
    • To control diseases, apply fungicides.
    • Apply weedkiller to keep weeds down. 

Late Spring

Wildlife

  • Plant bee and butterfly attracting plants to your garden to encourage them to your garden.