Approved Suttons seeds retailer. 15 Seeds Easy to grow black/purple grass annual. Ideal for borders, beds and patio containers. Good for the middle of the border and used to show off other plants such as Rudbeckia, will look good for months ! Growing Information: Sow in a heated propagator (20-25C) from February-May in pots or trays of moist seed compost and cover seeds with a fine sprinkling of compost or vermiculite, do not exclude light as this helps germination. Keep the surface of the compost moist. Germination up to 21 days. When large enough to handle, transplant seedlings into small pots. Gradually acclimatise plants to cooler conditions for a few weeks before planting out after all risk of frost, 30cm (12in) apart or into large containers filled with a moisture retaining compost. Note: When they first germinate, plants are often green. They will show purple colouring after about 8 leaves have developed. They become darker once outside.