Generic filters

Cosmos sulphureus Redcrest

Price range: £1.59 through £11.99

A showy and large graceful annual with bright 3-5cm blooms in a stunning orange red which is sure to make a bold, beautiful statement in your flower garden. Lacy finely cut foliage and silky flowers give an airy touch to the garden flowering consistently from midsummer to the first frost.

Very effective when grown in masses as a background planting and informal flower gardens, highly attractive to butterflies. Makes excellent cut flowers.

SKU: rng_COSMOS - SULPHUREUS REDCREST Categories: , , , , ,
  1. Start the seeds indoors between March-April.
  2. Sow the seeds on the surface of moist compost and lightly cover
  3. Place in a heated propagator at a constant temperature of 20-25c.
  4. Alternatively, sow directly outside between May-June.
  5. The seeds will germinate in 7-21 days.
  6. Once the seedlings are 5-7cm, transplant into individual pots.
  7. Gradually acclimatise the plants to cooler conditions.
  8. When the seedlings have formed 2-3 pairs of leaves, pinch out the tips.
  9. Plant out once the risk of frost has passed (May-June).
  10. If growing in pots, use a liquid feed every couple of weeks.
  11. Tolerates poor soil, heat and dry conditions.

Name: Cosmos sulphureus Redcrest
Genus: Cosmos
Species: sulphureus
English Name: Cosmos
Hardiness: Half-Hardy
Lifecycle: Annual
Sowing Months: Mar-May
Plant Out: Apr-May
Flowering: Jun-Nov

Sowing Indoors: March-April
Sowing Outdoors: May-June
Days To Germination: 7-21 days
Optimum Soil Temperature: 20-25c
Plant Height: 80cm
Plant Spacing: 30cm
Flowering Months: June-September
Light: Full sun

We accept all major credit and debit cards

We accept all major credit and debit cards

2026 Premier Seeds Direct

0
    0
    Your Cart
    Your cart is emptyReturn to Shop