Cosmos bipinnatus 'Rubinato'
cosmos
- approx 30 seeds
- £3.79
- In stock (shipped within 2-3 working days)
Delivery options
- Seed Packets (only) £2.99
- Position: full sun
- Soil: moderately fertile, moist, well-drained soil
- Rate of growth: average
- Flowering period: June to October
- Hardiness: half-hardy annual
A compact and robust half-hardy annual showcasing stunning single dark burgundy-red flowers that reach up to 8cm (3in) across and gradually mature into an enchanting old rose hue. With an extended blooming period from early summer though autumn, these captivating blossoms adorn branching stems above delicate, feathery foliage. 'Rubinato' is an early-blooming cosmos, gracing gardens within 70 days from sowing.
Garden care:
Pot on and grow on under glass until all risk of frost has passed and they can be planted outside in a well-prepared bed.
Pinch out the growing tips to encourage bushier growth, and feed at regular intervals throughout summer with a high-potash fertiliser. Taller plants may need supporting with brushwood stems in exposed positions.
Pinch out the growing tips to encourage bushier growth, and feed at regular intervals throughout summer with a high-potash fertiliser. Taller plants may need supporting with brushwood stems in exposed positions.
In early spring, sow seed shallowly in seed trays and keep under glass, transplanting them into individual pots when large enough to handle. Harden off before planting outside after the frosts.
Alternatively, sow in-situ in mid- to late spring in a well-prepared bed and thin the seedlings out as they grow to allow approximately 30cm between each.
Alternatively, sow in-situ in mid- to late spring in a well-prepared bed and thin the seedlings out as they grow to allow approximately 30cm between each.