Nasturtium Mahogany Seeds

Tropaeolum majus

Item #1194

Perennial (tender), grown as an annual. Mahogany’s rich color is reminiscent of gleaming antique furniture—it adds “polish” to a garden bed, border, or container! The deep red flowers and green leaves blend beautifully in any planting, filling in quickly where all-season color is needed, and they attract pollinators. Perennial in USDA zones 10 and warmer; usually grown as an annual. Fairly drought tolerant once established. Rabbit and deer deterrent.

Seedling Image

Perennial (tender) grown as an annual

Full sun to part shade

Blooms late spring to frost

10”-12” tall

Days to Emerge:
7-14 days

Seed Depth:
1/2”

Seed Spacing:
A group of
3 seeds
every 8”–12”

Thinning:
When 2” tall,
thin to 1
every 8”-12”

When to sow outside: RECOMMENDED. 1 to 2 weeks after average last frost. Mild Climates: Sow in fall for winter bloom. Ideal soil temperature for germination is 55°‒65°F.

When to start inside: Not recommended. 2 to 4 weeks before average last frost. Roots sensitive to transplant disturbance; sow in biodegradable pots that can be directly planted in the ground.

Special germination instructions: Soak seed in water for 12 to 24 hours before sowing.

Artist: Carolyn Crawford