Free Shipping on $50+ orders!

Basket

Tall Orange Sulphur Cosmos Seeds

Cosmos sulphureus

5.00 (3 reviews)
  • HOW TO GROW
  • FAST FACTS
  • REVIEWS

HOW TO GROW

Sowing: In early spring or after the last frost, scatter the tall orange sulphur cosmos seeds on the surface of loose soil. Keep the soil lightly moist until germination, which should take place within 10-20 days at soil temperatures from 65-75 degrees F. Cooler soil temperatures may delay germination. Seedlings do not need to be thinned, but can be transplanted if they appear too crowded. Since these Cosmos Sulphureus seeds germinate quickly in warm soil, they can be sown at any time before midsummer for another crop of flowers. To start the seed indoors, sow on the surface of a flat 6-8 weeks before the last frost of spring; keep the soil evenly moist and at a temperature of 70-75 degrees F until germination. When there is no chance of frost, transplant them outdoors.

Growing: As soon as seedlings appear, only water them in very dry weather. This flower must not be over-watered, and thrives in drought conditions and heat; if prolonged drought occurs, give the plants one deep watering. If blooming begins to decrease, cut the plant back to 12" for new growth; more blossoms will come in about 4 weeks. If allowed to self-seed, this flower will produce a new crop of flowers next year. This flower attracts birds, butterflies, and bees.

Harvesting: Cosmos blossoms make lovely, long lasting cut flowers. Cut long stems of blossoms that have just opened, and remove any foliage that will fall below the water level. These flowers usually have a vase life of 7-10 days. Cosmos blossoms also make attractive dried flowers.

Seed Saving: Allow the flowers to drop their petals and develop into spiky seed heads. When ripe, the heads will be brown or dark brown and easily broken apart to reveal the narrow, sharp tall orange sulphur cosmos seeds. Remove the ripe seed heads and spread them out to dry away from direct sunlight. When they have completely dried, break apart the heads to separate the Cosmos Sulphureus seeds from the husk. Store the cleaned seed in a cool, dry place.

FAST FACTS

Common Names: Sulphur Cosmos, Klondike Cosmos

Latin Name: Cosmos sulphureus

Species Origin: Mexico

Type: Garden Flowers

Life Cycle: Annual

USDA Zones: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 4,000

Stratification: No Stratification

Germination Ease: No Stratification

Sunlight: Full Sun

Height: 40 Inches

Color: Orange

Bloom Season: Blooms Early Fall, Blooms Late Fall

Uses: Cut Flowers

Tall Orange Sulphur Cosmos Seeds 5.0
Review By Kay G

Great seeds

I received the seeds quickly and look forward to planting them in the spring.

Tall Orange Sulphur Cosmos Seeds 5.0
Review By Good Product and Customer Service

So far so good

I was impressed with the prompt attention to my tiny order if one seed pack. The ones I've planted germinated within a few days and they're looking healthy and happy!

Tall Orange Sulphur Cosmos Seeds 5.0
Review By Allison K Gumm

Great Service

Ordered my seeds online and I got them to my door within a couple days. Professionally wrapped.

Size Price Quantity
XL Mylar Packet (~500 Seeds) $3.48 -+
1 Oz Mylar (~4,000 Seeds) $7.05 -+
1/4 Lb Mylar (113g) $11.85 -+
1 Lb Mylar (454g) $30.00 $28.80 -+
5 Lb Bulk Bag (2.27kg) $135.00 $129.60 -+
10 Lb Bulk Bag (4.54kg) $240.00 $230.40 -+
25 Lb Bulk Bag (11.3kg) $570.00 $547.20 -+
50 Lb Bulk Bag (22.7kg) $1,080.00 $1,036.80 -+
Add to Wishlist

DESCRIPTION

A favorite for pressing, this intense orange flower also makes a brilliant bouquet. This annual is very easy to grow and works well for cut flower gardens or butterfly gardens alike.
Because of their Mexican heritage, these bright annuals meet high heat and drought conditions with native beauty and vigor. Spanish conquistadors searching for gold discovered these flowers on their journeys through Mexico. Mission gardens often included these flowers, which priests gave the name "cosmos," the Greek word for a harmonious whole, because of their neatly spaced petals. Cosmos flowers made their way to England with Spanish ambassadors in the late 18th century, and to the United States in the following century.

HOW TO GROW

Sowing: In early spring or after the last frost, scatter the tall orange sulphur cosmos seeds on the surface of loose soil. Keep the soil lightly moist until germination, which should take place within 10-20 days at soil temperatures from 65-75 degrees F. Cooler soil temperatures may delay germination. Seedlings do not need to be thinned, but can be transplanted if they appear too crowded. Since these Cosmos Sulphureus seeds germinate quickly in warm soil, they can be sown at any time before midsummer for another crop of flowers. To start the seed indoors, sow on the surface of a flat 6-8 weeks before the last frost of spring; keep the soil evenly moist and at a temperature of 70-75 degrees F until germination. When there is no chance of frost, transplant them outdoors.

Growing: As soon as seedlings appear, only water them in very dry weather. This flower must not be over-watered, and thrives in drought conditions and heat; if prolonged drought occurs, give the plants one deep watering. If blooming begins to decrease, cut the plant back to 12" for new growth; more blossoms will come in about 4 weeks. If allowed to self-seed, this flower will produce a new crop of flowers next year. This flower attracts birds, butterflies, and bees.

Harvesting: Cosmos blossoms make lovely, long lasting cut flowers. Cut long stems of blossoms that have just opened, and remove any foliage that will fall below the water level. These flowers usually have a vase life of 7-10 days. Cosmos blossoms also make attractive dried flowers.

Seed Saving: Allow the flowers to drop their petals and develop into spiky seed heads. When ripe, the heads will be brown or dark brown and easily broken apart to reveal the narrow, sharp tall orange sulphur cosmos seeds. Remove the ripe seed heads and spread them out to dry away from direct sunlight. When they have completely dried, break apart the heads to separate the Cosmos Sulphureus seeds from the husk. Store the cleaned seed in a cool, dry place.

FAST FACTS

Common Names: Sulphur Cosmos, Klondike Cosmos

Latin Name: Cosmos sulphureus

Species Origin: Mexico

Type: Garden Flowers

Life Cycle: Annual

USDA Zones: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 4,000

Stratification: No Stratification

Germination Ease: No Stratification

Sunlight: Full Sun

Height: 40 Inches

Color: Orange

Bloom Season: Blooms Early Fall, Blooms Late Fall

Uses: Cut Flowers

Reviews

5.00
Global Rating: 5.00 from 3 reviews
5.0

Review By Kay G

Great seeds

I received the seeds quickly and look forward to planting them in the spring.

5.0

Review By Good Product and Customer Service

So far so good

I was impressed with the prompt attention to my tiny order if one seed pack. The ones I've planted germinated within a few days and they're looking healthy and happy!

5.0

Review By Allison K Gumm

Great Service

Ordered my seeds online and I got them to my door within a couple days. Professionally wrapped.

Also Consider These:

  • On Sale! Dwarf Cosmos Seed Mix Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Sensation Tall Cosmos Seed Mix Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Bright Lights Sulphur Cosmos Seed Mix Cosmos sulphureus Quick View

    Starting at $3.48 USD

  • Candystripe Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Daydream Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Dazzler Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Gloria Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Dwarf Gold Sulphur Cosmos Seeds Cosmos sulphureus Quick View

    Starting at $3.48 USD

  • On Sale! Dwarf Lemon Sulphur Cosmos Seeds Cosmos sulphureus Quick View

    Starting at $3.48 USD

  • Dwarf Sulphur Cosmos Seed Mix Cosmos sulphureus Quick View

    Starting at $3.48 USD

  • On Sale! Dwarf Orange Sulphur Cosmos Seeds Cosmos sulphureus Quick View

    Starting at $3.48 USD

  • Picotee Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • On Sale! Pinkie Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Purity Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Radiance Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Sea Shells Cosmos Seeds Cosmos bipinnatus Quick View

    Starting at $3.48 USD

  • Tall Yellow Sulphur Cosmos Seeds Cosmos sulphureus Quick View

    Starting at $3.48 USD