Sunflower Bicentenary

We are pleased to announce that Sunflower Bicentenary has been selected by the Royal Horticultural Society and included in their prized Bicentenary Plant Collection celebrating 200 years of the RHS.

Bicententary was chosen because of its outstanding garden performance ,as well as being totally unique! Not only are the attractive 6 inch rich gold and bronze flowers bi-colored, but they also sit above unusual soft, silver-green foliage.

Bicentenary is easy to grow, producing many multi-headed stems which create maximum impact when planted towards the middle or back of a border as well as making a decorative cut flower. The buds are delicious cooked in butter sauce and seeds make a tasty snack.

Height: 60 inches; Type/hardiness: Hardy Annual; Flowers: Summer

Sowing:

Sow thinly, ½ inch deep in drills 12 inches apart in well cultivated soil raked to a fine tilth. Germination takes around 21 days. When large enough to handle, thin to 12 inches apart.

For earlier flowering sow indoors, individually in 3 inch pots at 68-77F. When well grown, gradually acclimatize to outdoor conditions before planting out after all risk of frost.

Growing:

Thin out to 12 inches apart, when large enough to handle.

Aftercare:

They prefer a sunny open site but will grow in most sites and soils. In order to spread the flowering over a longer period make 2 sowings allowing 14 days between them, or pinch out the growing point of some of the plants at the 6 leaf stage.

This is the archived version of this product. It is no longer available for sale. You can use this page to print out sowing and growing instructions.

For the fulll list of all archived products, click here.