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Product Description
Enhance your garden with the aromatic and hardy Costmary flowers. This heirloom, non-GMO variety is prized for its drought tolerance, making it perfect for low-water gardens, borders, and containers. With its charming foliage and delicate blooms, Costmary is ideal for gardeners seeking resilient and attractive plants that thrive with minimal care.
Features & Specifications:
Variety: Costmary – Drought Tolerant
Seed Type: Heirloom, non-GMO
Germination Rate: High, suitable for home planting
Plant Height: 50–80 cm (20–31 inches)
Flowering Season: Summer to early autumn
Light Requirements: Full sun to partial shade
Ideal For: Low-water gardens, borders, flower beds, and containers
Planting & Sowing Instructions:
Sowing: Sow seeds on well-draining soil, lightly covering with a thin layer of soil.
Watering: Keep soil lightly moist until germination; overwatering can be avoided due to drought tolerance.
Temperature: Optimal germination occurs at 18–22°C (64–72°F).
Germination Time: Seeds typically sprout in 10–18 days.
Transplanting: Thin seedlings and transplant once 2–3 true leaves appear, maintaining proper spacing.
Care: Low-maintenance; remove faded flowers to encourage prolonged blooming and maintain healthy growth.

Life Cycle
Perennial Herb
Planting Season
Spring Summer
Growth Habit
Upright Bushy
Flavor Profile
Aromatic Leaves
Plant Characteristics
Silver Green Foliage
Use
Medicinal & Ornamental
Growing Conditions
Well Drained
Harvest Advantages
Long Lasting
Plant Resistance
Drought Tolerant
Scientific Name – Tanacetum balsamita
Seed Names
Costmary
Seed Type
Heirloom Open-Pollinated
Costmary is an aromatic perennial herb known for its silver-green foliage and subtle yellow flowers. This heirloom plant is drought-tolerant and thrives in sunny, well-drained gardens, making it perfect for ornamental borders, medicinal herb gardens, and pollinator-friendly landscapes.
Light Requirement
Full Sun
Planting Depth
¼ Inch Deep
Sowing Method
Direct Sow
Plant Spacing
12–15 Inches
Days to Maturity
70–90 Days
Soil Preparation
Soak 12 Hours
Hardiness Zones
Zones 4–9
Water Needs
Low Moderate
Planting Season
Early Spring
Seed Count
Recommended Coverage
100
up to 200 sq ft
500
up to 1,000 sq ft
1000
up to 2,000 sq ft