Nasturtium

Heirloom Nasturtiums: The Vibrant, Edible Workhorse of the Garden

Nasturtiums are the ultimate multitaskers of the heirloom garden. At Firefly Farm & Mercantile, we curate nasturtium seeds (Tropaeolum majus) that are selected for their brilliant colors, rapid growth, and exceptional culinary utility. Perfectly suited for the warm summers and crisp autumns of the Driftless Region, our non-GMO varieties—ranging from the cascading "Jewel of Africa" trailing types to the tidy, compact "Empress of India"—offer a spectacular display that works just as hard for your soil as it does for your table.

Edible Elegance and Natural Pest Management

Every part of the nasturtium plant is a gourmet treat. The flowers and lily-pad-shaped leaves offer a spicy, peppery flavor similar to watercress, making them a stunning addition to fresh salads and summer appetizers. Beyond the kitchen, nasturtiums are the ultimate companion plant. They act as a highly effective "trap crop," attracting aphids and cabbage moths away from your precious vegetables, while their intense fragrance helps deter cucumber beetles and squash bugs. Whether you are filling a hanging basket or protecting your tomato patch, our seeds provide a beautiful, chemical-free solution.

Quick Nasturtium Growing Facts:

• Planting Window: Direct sow after all danger of frost has passed and soil is warm (60°F+). They do not like being transplanted, so sowing directly into their final home is best.
• Growth Habit: Choose Trailing varieties for ground cover and vertical trellises, or Bush/Mounded varieties for containers and garden borders.
• Hardiness: Extremely heat-tolerant annual; thrives in USDA Zones 3-10 through the first frost.
• Soil Preference: Surprisingly, nasturtiums prefer "poor" soil. Avoid high-nitrogen fertilizers, which will give you massive leaves but very few flowers!
• Expert Tip (The "Neglect" Secret): If you want the most flowers, treat your nasturtiums with a little bit of neglect. Don't over-water and definitely don't over-fertilize. The slightly "stressed" plant will produce a profusion of blossoms to ensure its seed future, giving you a much more colorful display!

Explore our selection of traditional, variegated, and jewel-toned heirloom nasturtium seeds below. Every packet includes expert sowing instructions to help you grow a high-yield, edible masterpiece.