
RHS Plants Home Plants Seeds Flower seed Cosmos seeds Cosmos bipinnatus 'Sensation Picotee' (Sensation Series)Cosmos bipinnatus 'Sensation Picotee' (Sensation Series)
RHS Plants Home Plants Seeds Flower seed Cosmos seeds Cosmos bipinnatus 'Sensation Picotee' (Sensation Series)Cosmos bipinnatus 'Sensation Picotee' (Sensation Series)
Easy to grow and flowering prolifically for several months in summer (especially if dead-headed regularly), these hard-working annuals make wonderful additions to the garden. The flowers are very pretty too, with soft pinkish-white petals that are irregularly edged in a rich shade of crimson. Grow more than you need so you have plenty for the vase.
How to care for Cosmos bipinnatus Sensation Picotee (Sensation Series):
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.
Sowing instructions:
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.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
1.2m
Eventual spread:
0.6m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
Product options

approx 75 seeds
£3.79
In stock
(shipped within 2-3 working days)
(shipped within 2-3 working days)
1
Delivery options (pick your preferred option at checkout)
Seed Packets (only)£2.99
Named Day Delivery£10.99
Goes well with
Campanula lactiflora 'Prichard's Variety'
milky bellflower ( syn. Campanula Pritchard's Variety )
From £6.29
View options
2 litre pot | £11.99 |
|
9cm pot | £6.29 |
|
3 × 9cm pots | £10.47 |
|
3 × 2 litre pots | £29.99 |
|
View details
Anemone × hybrida 'September Charm'
Japanese anemone
From £10.99
View options
2 litre pot | £15.99 |
|
3 × 9cm pots | £24.99 |
|
6 × 9cm pots | £42.99 |
|
3 × 2 litre pots | £35.99 |
|
9cm pot | £10.99 |
|
View details

Easy to grow and flowering prolifically for several months in summer (especially if dead-headed regularly), these hard-working annuals make wonderful additions to the garden. The flowers are very pretty too, with soft pinkish-white petals that are irregularly edged in a rich shade of crimson. Grow more than you need so you have plenty for the vase.
How to care for Cosmos bipinnatus Sensation Picotee (Sensation Series):
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.
Sowing instructions:
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.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
1.2m
Eventual spread:
0.6m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
Product options

approx 75 seeds
£3.79
In stock
(shipped within 2-3 working days)
(shipped within 2-3 working days)
1
Delivery options (pick your preferred option at checkout)
Seed Packets (only)£2.99
Named Day Delivery£10.99
Goes well with
Campanula lactiflora 'Prichard's Variety'
milky bellflower ( syn. Campanula Pritchard's Variety )
From £6.29
View options
2 litre pot | £11.99 |
|
9cm pot | £6.29 |
|
3 × 9cm pots | £10.47 |
|
3 × 2 litre pots | £29.99 |
|
View details
Anemone × hybrida 'September Charm'
Japanese anemone
From £10.99
View options
2 litre pot | £15.99 |
|
3 × 9cm pots | £24.99 |
|
6 × 9cm pots | £42.99 |
|
3 × 2 litre pots | £35.99 |
|
9cm pot | £10.99 |
|
View details