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Product Description
Heirloom Grandiflora Flower Seeds produce elegant, large blooms that thrive even in partially shaded areas. This heirloom variety is prized for its resilience, long flowering season, and ability to add color and beauty to low-light garden spots. Perfect for borders, containers, and shaded garden beds, Grandiflora delivers premium-quality, GMO-free flowers that are easy to grow and maintain.
Features & Specifications:
Heirloom variety with large, showy blooms
Shade tolerant and resilient
Premium quality, non-GMO seeds
Growth Habit: Upright perennial
Bloom Colors: White, pink, or red (varies by variety)
Bloom Time: Summer to early fall
Sunlight: Partial shade to full shade
Plant Height: 18 – 36 inches
Ideal For: Shaded borders, containers, and garden beds
Planting Instructions:
Sow seeds ¼ inch deep in well-drained soil and keep soil evenly moist.
Start seeds indoors 6–8 weeks before the last frost or sow directly outdoors after frost danger passes.
Maintain moderate temperatures (18–24°C) for optimal germination in 7–14 days.
Transplant seedlings to shaded or partially shaded spots, spacing 12–18 inches apart.
Water regularly and remove spent flowers to encourage continuous blooming.
About Heirloom Grandiflora Seeds (Impatiens walleriana)
Scientific Name: Impatiens walleriana
Seed Names
Grandiflora flower seeds
Seed Type
Heirloom non GMO
Heirloom Grandiflora flowers are classic shade-loving annuals prized for their large, vibrant blooms and continuous flowering habit. These GMO-free heirloom seeds grow into compact plants that thrive in shaded borders, containers, hanging baskets, and home garden beds.
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