February Garden Planner - Telegraph 'Winter Moonbeam" and 'Winter Sunshine" subvert the hellebore norms; full sun-lovers instead of shade, flowering prolifically until April on multiple stems from the first year, with upward-facing blooms. These 2007 hybrids, both still collector's items, challenge gardeners to come up with exciting new planting ideas. Usually £15, Telegraph readers can buy one of each for £24, mail order or by bringing this supplement to the open days at breeder Harveys Garden Plants, Bury St Edmunds, Suffolk (February 24 and 25; 01359 233363; harveysgardenplants.co.uk). Give clematis the chop Group threes - early summer-flowering viticellas, tanguticas and hybrids such as 'Jackmanii" - don't need a precision haircut. Prune down to 12in to 18in (30cm to 45cm). Raz up the raspberry patch 1 Plant summer-fruiting canes 16in (40cm) apart in north-south rows to give the berries maximum sun. Then shorten to 10in (25cm) so they bush out. 2 In a patio garden grow six canes around the edge of a 24in (60cm) container filled with soil-based compost. 3 Prune twiggy autumn raspberries to an inch above the ground. Plant a Valentine arbour 1 Even DIY dunces can create a romantic arbour, children's den, a tunnel or elegant arch with living willow, for well under £100. 2 Avoid spots close to similarly thirsty plants and the kitchen garden (walls and underground pipes, too). Clear a 24in-wide (60cm) strip of bare ground in the shape of your design. 3 Make the basic structure with two-year-old "rods," planted 12in (30cm) deep. Then weave together flexible one-year-old "whips," planted at 45 degrees and six inches (15cm) deep, to fill the gaps. 4 Water and mulch with woven polypropylene covered with bark chippings or compost. Hodsock Priory, Notts, celebrates 21 years of welcoming visitors to its snowdrop collection. Daily to March 4 10am to 4pm; adults £5, children £1 (01909 591204; hodsockpriory.com). The RHS London Plant and Design Show is at the RHS Horticultural Halls, Westminster. Feb 14 10am to 7pm (£9); Feb 15 10am to 5pm (£6); members free (0845 612 1253; rhs.org.uk). Learn how to maintain garden equipment at Writtle College, Essex. March 6 9am to 5pm; £85 (01245 424286; writtle.ac.uk).