April tips and advice

Plant potatoes: Chit and plant out second early potatoes in the first half of the month, maincrop potatoes in the second half.

Pot up tomato seedlings:  When seedlings develop two or four true leaves above the more rounded seed leaves, pot them into individual 7cm (2 1/2in) pots.

Plant asparagus crowns: Plant one-year-old crowns 30-45cm (12-18in) apart in rows 45cm (18in) apart.

Protect fruit blossom from frost: Where possible, protect plum and pear flowers from frost but allow insects access for pollination.

Start regular weeding: Keep annual weeds under control by hoeing. Deal with perennial weeds as appropriate, either digging them out or using a weedkiller.

Red spider mite: Look out for red spider mite on strawberries under glass and treat accordingly.