Tropaeolum Common name; Nasturtium

This hardy annual has a climbing/trailing habit, which makes it a useful subject for hanging baskets, and for covering trellis, fences and banks. 

It can trail out to distances of 2-2½ metres (6-8ft)

The flowers appear in June and generally continue into September /October.

Week 13; Sow the seeds in pots /trays of seed compost and germinate at 13°-16°C (55°-60°F)

Germination should about a week to ten days.

Week 16; When the seedlings are large enough to handle, pot them singly into 75mm (3") pots of potting compost.

Gradually harden them off in a cold frame until planting out time.

Week 21; Plant out in a sunny site, in poorish soil.

n.b. rich, moist soil can cause leaves to develop at the expense of flowers.