Nasturtium Seeds,
Black Velvet

Direct sow seeds outdoors in the spring after frost danger has passed and soil temperatures are above 55 F. Start indoors 4 weeks before the last frost date for earlier blooms. In mild climates, sow in the fall for winter blooms. Check your local region's frost dates to plan the best planting time. If you're unsure of your last frost date, consult our blog post 'Our Experts Answer Questions, Share Resources'.

Direct sow seeds 1/2-1 inch deep and space them 8–12 inches apart. Soak seeds in warm water before planting to speed up germination, which takes about 7–14 days. If starting indoors, plant in biodegradable pots to prevent transplant shock. Choose a sunny spot with well-draining soil for maximum flowering.

Nasturtiums are low-maintenance. Water sparingly, allowing the soil to dry slightly between watering. Avoid fertilizing, as nutrient-rich soil reduces blooming. Mulch to conserve moisture and deadhead spent flowers for continuous blooms. While pest-resistant, nasturtiums may attract aphids, which can be managed with water sprays or neem oil. They can also act as a trap crop to protect nearby plants.

• Nasturtiums will often reseed, but to save seeds, allow the flowers to mature and let the petals fall to the ground.
• Collect the seeds from the plant before they fall.
• When the seeds are dry, label and store them in a cool, dark, dry place over the winter.