Cosmo Seeds - Bright Lights

Product Information

Seed Count: ~25 seeds
Botanical Name: Cosmos sulphureus ‘Bright Lights’
Plant Type: Annual
Plant Height: 60–120 cm (2–4 feet)
Sun Exposure: Full sun
Frost Hardy: No

Bright Lights Cosmos Seeds for Vibrant Summer Colour

Bright Lights Cosmos is a colourful annual known for its vivid mix of warm hues that bring energy and movement to garden beds and borders. Easy to grow and free-flowering, this variety produces a continuous display of cheerful blooms from summer through early fall, making it a favourite for low-maintenance gardens and pollinator-friendly spaces. As a trusted Canadian seed shop, quality is always our top priority. Explore our seed collections to find carefully selected varieties suited to your growing space.

A Reliable Annual for Sunny Gardens

Bright Lights Cosmos thrives in full sun and performs well in a wide range of soils, provided drainage is good. Its tall, airy growth habit makes it ideal for adding height and colour to mixed plantings, while its long bloom period ensures lasting visual impact throughout the season.

Growing Details

Germination: 7–21 days
Seed Depth: Surface sow, press gently into soil, do not cover
Plant Spacing: 30–45 cm (12–18 inches)
Starting Method: Direct sow outdoors after last frost or start indoors 4–6 weeks before transplanting

FAQs

How do I grow Bright Lights Cosmos from seed?

In order to grow Bright Lights Cosmos from seed, you need to sow seeds directly outdoors after the last frost or start them indoors 4–6 weeks earlier. Seeds should be surface sown and pressed gently into the soil, as light is required for germination.

Does Bright Lights Cosmos bloom all summer?

Yes, Bright Lights Cosmos blooms continuously throughout summer and into early fall when grown in full sun and well-drained soil.

Is Bright Lights Cosmos easy to grow?

Bright Lights Cosmos is considered easy to grow and is well suited to beginner gardeners due to its adaptability and long flowering period.

+++ Learn more about growing cosmos flowers from seed here. +++