Bright Lights Mix - Cosmos Seeds

SKU: FCS102

Open-Pollinated

Heirloom

$3.95

Choose size

Packet 100 seeds

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Bright Lights Mix cosmos throws warm shades of gold, tangerine, and scarlet on lacy foliage, lighting up beds from midsummer to frost. This sulphur cosmos species loves heat and poor soil—too much fertility just gives leaves. Cut often and the plants respond with more stems, keeping bees and butterflies busy. Originating in Mexico and Central America, cosmos has long lined vegetable rows to lure pollinators. If a border needs energy and movement without extra water or fuss, Bright Lights steps in and shines.

How to Grow

Plant seeds directly in the garden after average last frost date. Optimum soil temperature for seed germination is 60-70°f. Or, start seed indoors 4-6 weeks before transplanting into the garden. Transplant to the garden 1-2 weeks after your average last frost date. Removing old blossoms will encourage new growth. Plant staking may be required for added support. Sulphur cosmos thrive in hot, arid climates in soil that is more infertile.

Growing Specs

Scientific name: cosmos sulpureus
Days to maturity: 60-80
Seed depth: 1/8"
Days to sprout: 7-21
Plant spacing: 18-36"
Row spacing: 24-36"
Light requirements: sunny
Plant height: 24-48"
Life cycle: annual
Frost hardy: no

NON-GMO

Open-pollinated seeds perfect for seed saving

HIGH QUALITY

Third-party lab tested to ensure strong germination and seed vitality

100% SATISFACTION

We'll make it right if there's a problem

HAND PACKED

Created with love in Pottstown, PA

ORGANIC SEED

140+ Organic and Certified Naturally Grown varieties available

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More than a garden

We started Bucktown Seed Co. the same way many of our customers begin—with a handful of seeds, a backyard bed, and the desire to grow something real for our family. Rooted in Chester County, PA, Bucktown is Certified Naturally Grown on our own land—supported by like-minded growers across the U.S.

Every seed holds a promise

Healing. Nourishment. Beauty. Something worth passing down. We’re here to help families reclaim the old skills, reconnect with the land, and remember how much good can rise from the dust of the earth.

Tested. True. Ready to grow

High quality, open-pollinated, non-GMO, untreated seeds—third-party lab tested every year to ensure strong germination and seed vitality. Many are heirloom, Certified Organic, and Certified Naturally Grown, chosen to help you grow confidently from seed to harvest.

Homegrown, on purpose

We’re here to help you grow a little more of what matters—good food, a little healing from the soil, honest beauty, and the steady freedom that comes from doing it yourself, from seed to harvest.

Gardeners have spoken

Growers across the country are planting with Bucktown—and the results speak for themselves. We want you to be confident in what you plant and pleased with what you receive. If there’s a problem, we’ll make it right.

Bundles built for wonder

Jumpstart your growing journey with our themed seed kits and heirloom seed banks—where a good plan meets a little wonder. Focused on flavor, purpose, and variety, they make it easy to start strong, and easy to pass along.