Toughen up tender plants
Harden off tender plants by leaving them outside for increasing periods of time, building up to overnight exposure for a fortnight, then plant in permanent places when the risk of frost has passed.
Lift and divide overcrowded clumps of daffodils after flowering. Deadhead tulips and daffodils. Apply a liquid fertiliser to bulbs after they have flowered, to encourage a good show next year. Allow foliage to die down naturally.
Watch out for red lily beetle
Inspect lilies for red lily beetles – they’re extremely destructive and active now.
Stagger your thinnings of annuals
Thin out direct sowings of hardy annuals and vegetables, in two or three stages at fortnightly intervals.
Increase your perennials stock
Divide clumps of herbaceous perennials. Bamboos and clumps of bulbs or rhizomes can be divided in the same way.