A perennial best grown as a hardy annual.

It grows to around 600mm (24”) high and flowers from late June to September.

To prevent self seeding remove the flowering stems after flowering.

Week 12; Sow seeds in pots/trays of seed compost and germinate at around 15°-18°C (60°- 65°F)

They should take around 7-10 day to germinate.

Week 13; Mulch perennials with manure or compost.

Week 15; Prick out into 50mm (2”) cells or 50mm (2”) apart in boxes/trays of potting compost and place in a frost free position until planting out time.

Basal cuttings 50-75mm (2”-3”) long, can he taken from perennials.

lnsert cuttings in a 50-50 (by volume) peat & sand mixture and place in a cold frame until planting out time the following May.

Week 18; If growing as a perennial, sow seeds now in pots/trays of seed compost and place in a coldframe to germinate.

Week 21; Plant out annual varieties 250-300mm (10”-12”) apart in sun or dappled shade.

Pot up perennial varieties into 70mm (3") pots and grow on in a coldframe until planting out time

Week 40; Plant out perennial varieties.

In exposed areas, support plants with twiggy sticks or similar.

Dead head plants regularly to prevent self seeding.

Cut dead stems to ground level in late autumn.