June 21 is the longest day of the year, and the extra light and warmth encourages the garden to put on an exuberant burst of growth. But this extra light and warmth also means weeds will sprout up from seemingly nowhere. Keep on top of them by hoeing regularly in dry conditions.
Hoe borders regularly to keep down weeds
Be water-wise, especially in drought-affected areas
Pinch out sideshoots on tomatoes
Harvest lettuce, radish, other salads and early potatoes
Position summer hanging baskets and containers outside
Mow lawns at least once a week
Plant out summer bedding
Stake tall or floppy plants
Prune many spring-flowering shrubs
Shade greenhouses to keep them cool and prevent scorch
Things to do in the garden this month
Trees & shrubs
Greenhouse, conservatory & houseplants
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