It's time to...
Plant out perennials in groups of three, five or seven for maximum effect
Sprinkle fertiliser around clumps of tulips to boost flowering
Sow hardy annual flowers directly into beds where you'd like them to bloom
Prune Himalayan honeysuckle (Leycesteria)
Pick off dead flower heads from spring bulbs
Protect emerging shoots of delphiniums and lupins from slugs and snails using a barrier such as copper tape for pots or garlic granules
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