Morning Glory Seeds,
Giant Moonflower

Sow seeds in the spring once the soil has warmed to 65-70 F, which is typically 2-3 weeks after the last frost. In cool-summer regions, start seeds indoors 4-6 weeks before the last frost and transplant after the soil has warmed. Before sowing, nick the hard seed coat with a file or nail clipper, or soak the seed in warm water for 12-24 hours, then plant 1/4 to 1/2 inch deep. The ideal germination temperature is 65-85 F. If you're unsure of your last frost date, consult our blog post 'Our Experts Answer Questions, Share Resources.'

Nick seed coat and soak seeds in warm water overnight to improve germination. Sow seeds directly in the ground, planting them 1/4-1/2 inch deep and spacing them 8-10 inches apart. Choose a sunny location that gets 6-8 hours of full sunlight daily. If starting seeds indoors, use biodegradable pots to minimize transplant shock, as Moonflowers dislike root disturbance. Keep the soil consistently moist during germination but avoid overwatering.

Water sparingly, allowing the topsoil to dry slightly between waterings, as the plant prefers not to sit in overly wet soil. Provide a strong climbing structure like a trellis or arbor early in the growing season to support the heavy vines. Blooms will appear mid to late summer and continue until frost. Each flower opens in the evening and has a sweet fragrance, making it a stunning addition to night gardens. Prune vines occasionally to control growth and encourage more flowers.

• When the flowers fade, they leave behind large seed capsules containing large, black seeds.
• Allow the seeds to dry in a warm area out of direct sunlight for 7 days. Store them in a cool, dark, dry place over the winter.
• Remember to nick and soak your seeds the night before planting in the spring!