Vorianseeds

Cosmos Seeds - Deep Red

$8.35

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Grow rich, velvety crimson-red saucer-shaped blooms with sunny golden-yellow centers.A heat-tolerant, easy-to-grow annual perfect for cottage borders, meadow gardens, and summer cutting patches.

CORE POINTS:

Rich Velvety Crimson Petals: Large, single, saucer-shaped blooms in an intense, velvety crimson-red hue that creates a bold, dramatic, and high-impact focal point.
Sunny Golden-Yellow Centers: A bright, textured cluster of golden-yellow stamens glows at the heart of each bloom, creating a stunning, high-contrast color pairing.
Airy, Fern-Like Foliage: The finely cut, feathery, light green foliage creates a soft, delicate texture that beautifully complements the bold crimson blooms and adds lightness to the garden.
Extreme Heat Tolerance & Easy to Grow: Thrives brilliantly in hot, dry US summers. It performs best in average, well-draining soil and requires very little maintenance.
Excellent Cut Flower: Long, slender but sturdy green stems make Cosmos a premier choice for effortless, long-lasting, naturalistic summer cut-flower arrangements.

Add a bold, velvety splash of dramatic color to your summer garden with these exquisite Deep Red Cosmos seeds. This stunning variety produces large, saucer-shaped, single blooms in an intense, velvety crimson-red hue. The rich, dark petals beautifully frame a bright, sunny golden-yellow center, creating a striking, high-contrast color pairing that immediately draws the eye. The bold blooms are elegantly suspended atop slender, sturdy green stems, surrounded by finely cut, fern-like, feathery foliage that adds an airy, ethereal texture to the garden.

Perfectly adapted to thrive in the hot, dry conditions of US summers, this resilient annual is exceptionally easy to grow. It performs best in average, well-draining garden soils without the need for heavy fertilization (which actually reduces blooming). It is a top-tier choice for low-maintenance cottage borders, meadow gardens, and dedicated cutting patches. Its long stems and long-lasting blooms make it a premier, effortless ingredient for elegant, naturalistic summer cut-flower bouquets. Please note: This plant is grown purely for ornamental garden purposes and is not intended for culinary or internal use. Bold, effortless, and endlessly charming—this Deep Red Cosmos is a dramatic summer essential for every garden.

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Style: 300 Seeds

300 Seeds

1 Ounce

1/4 Pound

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Grow rich, velvety crimson-red saucer-shaped blooms with sunny golden-yellow centers.A heat-tolerant, easy-to-grow annual perfect for cottage borders, meadow gardens, and summer cutting patches.

CORE POINTS:

Rich Velvety Crimson Petals: Large, single, saucer-shaped blooms in an intense, velvety crimson-red hue that creates a bold, dramatic, and high-impact focal point.
Sunny Golden-Yellow Centers: A bright, textured cluster of golden-yellow stamens glows at the heart of each bloom, creating a stunning, high-contrast color pairing.
Airy, Fern-Like Foliage: The finely cut, feathery, light green foliage creates a soft, delicate texture that beautifully complements the bold crimson blooms and adds lightness to the garden.
Extreme Heat Tolerance & Easy to Grow: Thrives brilliantly in hot, dry US summers. It performs best in average, well-draining soil and requires very little maintenance.
Excellent Cut Flower: Long, slender but sturdy green stems make Cosmos a premier choice for effortless, long-lasting, naturalistic summer cut-flower arrangements.

Botanical Name: Cosmos bipinnatus (Deep Red cultivar)
Genus: Cosmos
Species: bipinnatus
Color:Rich Velvety Crimson-Red ray petals with a bright Golden-Yellow center.
Plant Habit: Upright, airy, branching annual with finely cut, fern-like, feathery green foliage.
Light Requirements: Full Sun (6-8 hours minimum). Will bloom poorly in the shade.
Water Requirements: Low to Moderate. Extremely drought-tolerant once established. Do not overwater.
Temperature Requirements: Warm to Hot. Thrives brilliantly at 65°F - 90°F (18°C - 32°C). Frost-tender.
Soil Type: Well-draining, average to lean garden soil. Prefers slightly acidic to neutral pH (6.0 - 7.0). Rich soil causes leggy foliage and few blooms.
Bloom Start: Early Summer (June - July).
Bloom End: First Autumn Frost (October - November).
Pollination: Insect-pollinated (Extremely attractive to butterflies, bees, and hoverflies).
Planting Depth: Surface sow to 1/8 inch (3 mm). Do not bury deep; light is essential for germination.
Life Cycle: Herbaceous Perennial (USDA Zones 4-9).
Plant Height: 24 to 36 inches (60 - 90 cm) tall.
Plant Spacing: 12 - 18 inches (30 - 45 cm) apart.
USDA Zones: 2 - 11 (Grown as a summer annual in all zones; no winter hardiness).
Resistance: Excellent heat and drought tolerance. Good deer and rabbit resistance. Susceptible to: Powdery mildew in crowded, humid conditions; Aster Yellows. Avoid overhead watering to minimize fungal issues. Warning: Seeds and foliage are not intended for direct culinary or internal use.

Crucial Growing Tips: Cosmos seeds are easy to germinate. They do not require cold stratification. They require light to germinate—do not bury them deeply. They are fast-growing and bloom quickly from seed. Avoid over-fertilizing, as rich soil promotes excessive foliage growth at the expense of flowers.

Timing: Direct sow outdoors in mid-to-late spring after the danger of frost has passed and the soil has warmed up. For an earlier start, sow indoors 4-6 weeks before the last frost date.
Site Selection: Requires Full Sun (at least 6-8 hours of direct sunlight daily) for the most abundant blooms. It is highly drought-tolerant once established.
Soil Preparation: Thrives in well-draining, average to poor soil. It prefers lean, sandy, or loamy soils. Do NOT amend with rich compost or nitrogen-heavy fertilizers, as this will prevent blooming.
Sowing: (Indoors) Sow seeds on the surface of moist seed-starting mix. Cover with a very light dusting of soil or press gently into the surface (max 1/8 inch deep), as light is essential for germination. Keep the tray at 65°F-70°F and maintain even moisture. (Outdoors) Scatter seeds lightly over prepared soil and rake in gently.
Watering: Keep the soil lightly moist during germination. Once established, they are highly drought-tolerant; water deeply once a week only during extremely prolonged dry spells. Do not overwater.
Transplanting/Thinning: Harden off indoor seedlings for a few days before transplanting outdoors after the last frost. If direct sown, thin seedlings to the recommended spacing once they have a few sets of true leaves.
Maintenance (Deadheading): To ensure continuous blooming all summer long, deadhead (pinch or snip off) spent flowers regularly. This encourages the plant to produce new buds rather than going to seed.

📏 Planting Density

Cottage Borders & Meadow Gardens: Space individual plants 12 to 18 inches (30-45 cm) apart to allow for airy branching.
Mass Plantings / Cutting Gardens: Space plants 10 to 12 inches (25-30 cm) apart for a dense, unified display.
Container Planting: 1 plant per 10-12 inch diameter pot. Use a well-draining, average potting mix.
Note: Proper spacing is crucial to ensure good air circulation and prevent powdery mildew, especially in humid climates.

⏱️ Simple Growth Timeline

Days to Germination: 5 - 10 days (fast and consistent at 65°F-70°F).
Days to Transplant Size (4-6 leaves): 21 - 28 days (from sowing).
Days to First Bloom (From Direct Sow): 50 - 60 days (about 7-8 weeks).
Bloom Duration: Continuous from early summer to frost (approximately 12-16 weeks with regular deadheading).

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Cosmos Seeds - Deep Red

Style: 300 Seeds

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