Nasturtium 'Mahogany Jewel' (Tropaeolum majus): Rich Mahogany-Red Blooms

Overview

Tropaeolum majus 'Mahogany Jewel' forms a bushy mound 12-18 inches tall and wide, covered in summer and fall with distinctive mahogany-red, single to semi-double flowers. The rounded, palmately lobed leaves and spurred, fringed five-petaled blooms are both edible. This South American native adds sophisticated color to containers, borders, and herb gardens.

Growing Conditions

Full sun and moist, well-drained soil. Tolerates dry to medium moisture once established. Lean soil encourages more flowers. Avoid rich soil and excessive nitrogen.

Care and Maintenance

Sow seeds indoors early spring or direct-sow mid-spring. Water regularly until established. Deadhead to promote rebloom. Fast-growing, low-maintenance annual.

Common Problems

Caterpillars, flea beetles, black aphids, slugs, whiteflies, and viruses may appear. Good cultural practices minimize issues.

Landscape Uses

• Beds and borders
• Containers and hanging baskets
• Herb and cottage gardens
• Ground cover on banks
• Edible flower harvests

Key Features

• Unique mahogany-red flowers
• Edible leaves and blooms
• Fragrant, attracts butterflies
• Self-seeds
• Mounding habit, 12-18 inches