Slash-flower pro and nursery proprietor Sarah Raven is a big lover of using cosmos as reducing garden flowers. 'Cosmos bipinnatus lasts ten days during the vase, makes two buckets of Slice flowers per week from a 3ft (90cm) x 3ft (90cm) patch, and does so from late June right until https://sunilkeshari.com/how-to-grow-cosmos-sensation-mixed-seeds/