JOBS AHEAD
Now that the risk of late frost has passed, harden off any remaining half-hardy bedding plants ready for planting out.
During hot weather, hanging baskets and containers should be watered at least once a day. Water early in the morning or in the evening to prevent rapid evaporation.
Water level in ponds will fall in warmer weather so top up once a week with rainwater from a butt.
Spring bulbs which clump together like snowdrops and bluebells can be divided now. Wait until their leaves start to yellow and then dig up the bulbs and divide them into smaller clumps. Replant, giving them more space to grow.
Lift congested clumps of bearded iris after flowering and carefully divide the rhizome to make new pieces. Cut the fan of leaves at an angle about 10cm (4”) from the root, and replant the pieces.
Prevent the spent flower heads of lupins, delphiniums, and other early flowering perennials going to seed by cutting them back to a set of leaves. This can also encourage a second flush of flowers in late summer.
Pinch out the tops of runner beans when they reach the top of their supports to encourage side-shoots to grow.
Continue planting salad crops in succession to ensure a continuous supply of fresh leaves.
To ensure carrots are not decimated by carrot fly, cover the crop with fine woven mesh netting.
Strawberries should be ready to pick later this month, so make sure there is straw under the plants to keep the fruit away from the soil.
Remove any damaged and undersized fruit crops and be on the lookout for any signs of fungal disease on leaves.
Apple, pear, and plum trees will start to drop fruit in June. This is called the ‘June Drop’ and is a way for fruit trees to improve remaining fruit size, colour, and quality. Thin out fruits if needed to improve the process.
Pinch out side shoots on tomatoes and begin to feed once the first truss starts to set fruit.
Place some French marigolds around tomato plants to help repel aphids.
Remember that greenhouse plants will dry out more quickly as temperatures rise and most will require daily watering.
It is common for plants to fall victim to vine weevil at this time of year, so make sure to take pest control measures in the greenhouse to avoid losing your crops.
Trim herbs like parsley, sage, sorrel, and marjoram regularly to ensure a constant supply of tasty leaves.
Reap the benefits of home-grown herbs indoors by planting basil and coriander in small pots and keeping them on your kitchen windowsill within easy reach.