COSMOS White Seeds | Cosmos bipinnatus | SUMMER / WINTER

COSMOS White Seeds produce elegant, pure white blooms on tall, graceful stems, perfect for adding a touch of sophistication to any garden. 

Key Features

• Elegant pure white flowers
• Attractive yellow flower centres
• Fine feathery foliage
• Graceful upright annual
• Suitable for summer and winter sowing
• Excellent for full sun
• Easy to grow from seeds
• Excellent cut flower
• Bee and butterfly friendly
• Suitable for pots and grow bags
• Excellent for beds and borders
• Responds well to deadheading

Recommended Grow Bags

G-11 Grow Bag – 11 × 10 inch 🔗

Suitable for one Cosmos plant.

G-12 Grow Bag – 12 × 12 inch 🔗

Highly recommended for one strong White Cosmos plant.

G-24 Grow Bag – 24 × 12 inch 🔗

Suitable for growing several plants together with proper spacing.

Recommended Soil / Potting Mix

Use:

60% Bhalu Mitti / Sandy Soil + 30% GREEN GARDENS Vermicompost 🔗 + 10% Cocopeat

The soil should be:

Loose, moderately fertile and well-draining.

Avoid:

• Waterlogging
• Heavy compacted soil
• Excessive nitrogen
• Overly rich growing media

Growing Instructions from Seeds

Sow seeds approximately:

0.5–1 cm deep

in nursery trays, pots, grow bags or directly in garden soil.

Keep the growing medium:

Lightly moist until germination.

Water gently to avoid disturbing the seeds.

Germination

Under suitable conditions, seeds generally germinate within approximately:

7–14 days.

Maintain:

• Gentle moisture
• Good airflow
• Mild to warm conditions
• Well-draining soil

Plant Spacing

Maintain approximately:

25–30 cm / 10–12 inches between plants.

Proper spacing encourages:

• Better branching
• Good airflow
• Stronger stems
• More flowers

Sunlight

Provide:

Full sun

with approximately:

6–8 hours of direct sunlight daily.

Strong sunlight encourages:

Better flowering and stronger growth.

Watering

Maintain moderate moisture during establishment.

Once established:

Water when the upper soil layer begins to dry.

Avoid permanently wet soil.

Established Cosmos develops:

Moderate drought tolerance.

Feeding

Use a moderate quantity of:

GREEN GARDENS Vermicompost 🔗

Avoid excessive nitrogen because it can encourage:

Tall leafy growth with fewer flowers.

Pinching & Support

Light pinching of established young plants can encourage:

• Bushier growth
• More branches
• More flowering stems

Because White Cosmos can become tall, plants may require:

Light support in windy or exposed locations.

Flowering

White Cosmos produces attractive:

Pure white, daisy-like flowers with yellow centres

above delicate, feathery foliage.

Regular deadheading helps encourage:

Continuous flowering.

Cut Flower Use

White Cosmos is excellent for:

• Bouquets
• Vases
• Wedding-style arrangements
• Cottage-style arrangements
• Mixed flower displays

Cut stems when flowers are:

Freshly opened or just beginning to open.

Pollinator Value

The flowers attract:

• Bees
• Butterflies
• Other beneficial flower-visiting insects

This makes White Cosmos excellent for:

Pollinator-friendly gardens.

Summer & Winter Care

For spring and summer crops:

• Provide full sun
• Check moisture regularly
• Avoid waterlogging
• Deadhead frequently

For autumn and winter crops:

• Provide maximum sunlight
• Reduce excessive watering
• Maintain good drainage
• Protect young plants from severe frost

Important Botanical Note

White Cosmos is generally associated with:

Cosmos bipinnatus

a graceful annual species known for:

White and pink daisy-like flowers with finely divided foliage.

RHS also lists Cosmos bipinnatus as a full-sun annual suitable for well-drained soil and pollinator-friendly planting.

Related Products

G-11 Grow Bag – 11 × 10 inch 🔗

G-12 Grow Bag – 12 × 12 inch 🔗

G-24 Grow Bag – 24 × 12 inch 🔗

GREEN GARDENS Vermicompost 🔗

Flower Seeds Collection 🔗