Nasturtium Seeds,
Tip Top Pink Blush

Sow seeds outdoors in spring after the danger of the last frost has passed. In colder climates, start seeds indoors 4 weeks before the last frost date and transplant carefully, as nasturtiums do not like having their roots disturbed. The ideal germination temperature is 55-65 F. Learn about your area's hardiness zones and first/last frost dates in our blog post 'Our Experts Answer Questions, Share Resources'.

Soak seeds in warm water overnight before planting to soften their hard outer coat and improve germination. Sow seeds 1/2-1 inch deep in well-draining soil, spacing plants 8-12 inches apart to allow room for airflow and growth. Choose a spot with full sun for the best blooms, but light shade is acceptable in hotter climates. Seeds typically germinate within 7-14 days.

Water plants moderately but avoid overwatering, as nasturtiums prefer slightly dry conditions once established. Deadhead spent flowers regularly to encourage continuous blooming throughout the season. There’s no need to fertilize, as richer soil encourages leafy growth rather than flowers. While pest-resistant, nasturtiums may attract aphids, which can be managed by spraying the plant with water or using insecticidal soap.

• 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.