Our Green Team’s top tips:
Sunny days in April can easily trick us into thinking the cold weather is finally past, but don’t be caught off guard! Frost can still creep up, especially early in the month, depending on where you live. Don't plant out tender bedding and patio plants just yet - keep them safe under cover in a growhouse, greenhouse or cold frame.
Towards the end of the month, when all risk of frost has passed, you can start hardening off your well-nurtured young plants. Put them outside then bring them back indoors at night for about 7-10 days before planting in their final spot in your garden.
- Make sure to protect any young seedlings planted outside from pesky slugs. Barrier granules work as an effective organic pest control.
This month is all about: lawncare
Now is the perfect time to get the lawnmower out and cut your grass for the first time this year after the cold weather is gone for good. Keep the blades set high for the first few cuts so your grass is around 4cm high.
If your grass is looking dull and tired, Westland All in One Lawn Feed, Weed and Moss killer is the perfect product to bring it back to life. Not only will it provide your grass with essential nutrients, but it also gets rid of moss and pesky weeds that will be sprouting in the warmer weather. You should also scarify lawns with a spring-tine rake to remove moss, dead grass and debris. This allows for more light and air to get to your grass as the weather warms.
From mid-April, sow new lawns or re-seed bare patches on ground that’s been pre-prepared, levelled and firmed. Just make sure your soil isn’t still wet or cold. Alternatively, and for quicker results, you can lay new turf and leave it undisturbed for a few weeks to allow time for new roots to establish. Water it regularly so it never dries out and wait at least 3 weeks before cutting it for the first time.
Finally, tidy and define your lawn edges using a half-moon edging iron to give your garden a perfect finish. This is particularly effective in maximising the look of smaller gardens.
Seeds to sow in April
Flowers
Marigolds
Petunia
Sweet peas
Cosmos
Sunflowers
Lavender
Field poppies
Fruit & vegetables
Chillies (last chance to sow)
Tomatoes (last chance to sow)
Parsnips
Leeks
Brussels sprouts
Carrot
Onions and shallots
Broad beans
Early peas
Cauliflower
Beetroot
Flowers to plant & grow in April
Whether you’re looking for an instant boost of colour or planning for the summer months, April is a great month to start adding bright and cheerful flowers to your garden decor.
In beds & borders
Planting low maintenance, evergreen Aubretia and Saxifrage this month is essential if you’re looking to grow a pretty flower garden that lasts and reflowers each year.
Hardy annual flowers such as Nasturtiums, marigolds and cornflowers look great between existing border plants. Plant out young plants or sow their seeds directly into the soil.
Pots or strips of sweet peas can be planted out now. These could be ones you started sowing last month or plants bought in your local Dobbies. Tie these to the base of wigwam supports made from bamboo canes or hazel sticks as they grow.
Continue to plant new pot-grown hedges, trees and shrubs to add structural elements to your garden and as habitat for wildlife.
In pots & containers
Pull up any winter bedding plants in your tubs and baskets that have come to an end and replace them with displays of spring flowering bedding plants such as Pansies & Violas.
Towards the end of the month, plant up hanging baskets with summer bedding plants for fabulous shows of flowers all summer long. Grow these under protection for now, only putting outside when all risk of frost has passed.
Cherry blossoms or Japanese maples – also known as Acers – are stunning trees to start planting in April. Some varieties can be grown in pots, making them perfect additions to gardens of any size.
Troughs of alpines are easy to look after and make lovely features on patios, balconies, or window boxes. With a myriad of colours to choose from, as well as different styled troughs, alpines can be made to suit any garden style. Top-dress your alpine planter with grit, keep the foliage clean, and ensure water doesn’t collect around the base of the plant to have the prettiest alpines for months to come.
If you’ve planted summer bulbs in pots and are still waiting for them to grow, be sure to add some spring bedding plants to the topsoil for some instant seasonal colour.
April fruit & veg to grow
Many vegetable seeds can be directly sown into the ground this month, such as Christmas dinner favourites like carrots and parsnips, as well as salads, spinach and peas. If the weather turns chilly unexpectedly, make sure to protect your plants with a layer of frost protection fleece. Other vegetables such as cucumbers and courgettes can be sown under cover now, ready for planting out next month. Plant soft fruit such as raspberries, blueberries, blackcurrant and strawberries into the ground.
Don't forget to plant any remaining first early, second early and maincrop potatoes once their chitted shoots are at least 3cm long. You can plant these in pots and potato bags filled with Dobbies peat free compost or directly in the ground, feeding with a potato fertiliser.
For those with large vegetable patches, prep the soil for sowing by removing weeds and forking in plenty of farmyard manure. To help the soil to warm up quicker, consider covering prepared beds with cloches until you’re ready to plant. This will also help to keep the soil drier for easier seed sowing.
If you’re short on space, tomatoes, strawberries, onions and chilies can be grown in containers. You can also grow herbs on windowsills for quick and easy access to fresh produce all year.
Continue to protect the blossoms of your apricot, peach and nectarine trees from any late frosts with protection fleece.
Indoor gardening
Growing from the young plug plant stage is an economical way to grow lots of plants. It’s ideal if you didn’t get around to sowing seeds earlier in the season either. Plant young plants into small pots and grow them in a warm, frost-free greenhouse or conservatory. If you’ve already started growing young plants, it may be time to plant them out in the garden. Just make sure all risk of frost has passed – read our guide on how to plant young plants for more helpful advice.
Some of your seeds sown last month may already have started to sprout and make sufficient roots too. If so, it’s time to prick out and pot on seedlings and cuttings. Do this when the first pair of true leaves appear. If you’ve not begun to sow seeds, you can sow tender annuals in a heated propagator so they germinate quickly and flower earlier.
Don’t worry if you’ve not got room for a greenhouse or grow house. You can bring greenery and nature into your home with one of our beautiful houseplants. With lots of different varieties – from trailing to flowering – you can add a houseplant to almost every room, shelf and surface. Tending to houseplants is great for your mental health too!
General maintenance
Alongside all the exciting gardening stuff, such as planting flowers and sowing seeds, it’s important to stay on top of tidying your outdoor space. A well-maintained garden makes it easier for you to get growing when the weather allows for it. Plus, it’s much nicer to look at! Here are some things you can do outside to keep your space clean:
Assess your gardening tool kit to see if you have all the essentials or if anything needs to be replaced. Once your garden comes to life, you’ll want to be able to get going right away! If all your tools look in order, giving them a clean can help prevent the spread of diseases amongst your plants.
Stay on top of weeding, jet-washing patios and paths, and getting rid of leaves and other debris from your garden.
At the start of the month, prune your summer flowering shrubs, such as roses, Buddleia and Lavatera. Early flowering shrubs such as Forsythia can be pruned if needed once they’re finished flowering.
Mulch borders, hedges, trees, shrubs, and spring flowering bulbs with a slow-release fertiliser. Lightly fork this into the soil as per the instructions on the packet. It's an easy, low-maintenance way of feeding all your hungry plants!
Tie in stems of climbing roses and ramblers and apply rose food around the plants for the ahead growing season. Place metal or bamboo sticks around any existing plants already bursting into spring growth that need a bit of support. By doing so now, the overall look is more natural, and any plant damage can be avoided.
If necessary, touch up your shed or fence panels with a lick of fresh paint towards the end of the month. Start painting in the morning and it’ll be dry by night.
Consider installing a water butt to harvest rainwater from your roofs. It’s a great investment for the season ahead. Not only is it more sustainable to reuse rainwater, but both indoor and outdoor plants prefer natural rainwater to tap water, so your plants will be happier for it!
Look after wildlife
Planting wildlife-friendly plants and flowers in your garden provides pollinating insects like bees and butterflies with food and shelter. These insects are crucial to our environment and ecosystem. Many pollinating species in the UK are facing extinction, so it’s important to do your bit to help them out. Not only do you get to admire lots of gorgeous flowers, but you can also enjoy the gentle fluttering of wildlife in your own garden.
There are hundreds of flowers suited to pollinators readily available to grow and plant. The easiest way to start growing is by scattering mixed wildflower seed packs and flowers for pollinators mixed seed packs in your beds – these grow beautifully for a meadow-garden feel. Popular plants such as Lavender, Heather, and Foxgloves are ideal to grow too. As well as flowers, herbs are very attractive to pollinating insects too. Plant them in between flower patches or dedicate an area outdoors to growing your own herb garden.
Another way to make your garden wildlife friendly is by feeding birds with a variety of bird food, seed, and feeders. If the weather is still chilly, the birds will appreciate a hanging birdhouse on trees or windows as a shelter too. You could also consider putting a birdbath in your garden. Not only can this make a beautiful feature and attract all different kinds of birds, but many water sources will still be frozen at this time of year. Providing clean drinking water will be extra helpful to our feathery friends.
We’d love to see what you get up to outdoors this month. Spring truly is one of the most exciting times of the year, so we hope this guide helps spark inspiration in all the ways you can enjoy your garden in April, no matter what size of space you have!
Make sure to take a picture and tag us on socials @dobbiesgardencentres for your chance to be featured on our channels. If you’re looking for more advice, pop into your local Dobbies and ask a member of our Green Team for help. While you’re there, don’t forget to explore our full range of plants and gardening products to ease you through spring. Remember, warmer days are coming! Keep checking our inspiration page for more things you can do to enjoy the season and prepare for summer.