One of the most prolific bee friendly summer bloomers, cosmos produces buckets of flowers for months on end with regular harvesting. Rubenza displays a range of vibrant colors. The large single flowers start as a deep ruby and fade to shades of terracotta and rose as they age.
30 seeds per packet.
48 in stock
|Life cycle:||Heat-loving Annual|
|Climate:||Thrives in warm temperatures.|
|Sowing guide:||Direct sow (recommended) in spring or sow in trays and transplant after 4-6 weeks and only when soil temperatures are above 16 C.|
|Germination guide:||7-10 days @ 21 C. Light required - cover seed with thin layer of soil.|
|Pinch:||Yes, when 30 cm high|
|Flowering time:||90-100 days after sowing|
|Final height:||100 cm|
Provide horisontal plant support when growing in windy areas.
Harvest when the first individual flowers on a branch have openend. The still closed flowers will open over time in the vase. Plants respond well to regular cutting. Expected vase life is 4-6 days.