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Product Description
Add striking beauty to your garden with Robinia Flower Seeds, known for their vibrant blooms and hardy growth habit. These resilient perennials are perfect for borders, hedges, or container planting. Easy to grow and low-maintenance, they attract pollinators while providing long-lasting charm and color to any home garden.
Bright Blooms: Adds vivid color and elegance to your garden.
Pollinator Friendly: Attracts bees, butterflies, and other beneficial insects.
Hardy Variety: Resilient and suitable for varied climates and conditions.
Low Maintenance: Easy-to-grow perennial suitable for both beginner and experienced gardeners.
Heirloom Seeds: Selected for strong germination and healthy growth.
Plant Type: Perennial flowering tree/shrub
Flower Color: White to pinkish blooms
Height: 15–25 feet (varies by variety)
Light Requirements: Full sun to partial shade
Watering: Moderate; prefers well-draining soil
Blooming Season: Late spring to early summer
Hardiness Zone: 4–8
Seed Preparation: Scarify seeds lightly and soak in lukewarm water for 12–24 hours to improve germination.
Soil: Use fertile, well-draining soil enriched with organic matter.
Sowing: Sow seeds on the soil surface or lightly cover; start indoors or sow directly outdoors in spring after the last frost.
Spacing: Plant seedlings 3–5 feet apart to allow room for mature growth.
Light & Temperature: Place in full sun to partial shade with temperatures of 18–25°C (65–77°F).
Watering: Keep soil moist during germination; water moderately once established.
Maintenance: Prune occasionally to maintain shape; remove spent flowers to promote healthy growth.

Life Cycle
Annual
Planting Season
Spring–Early Summer
Growth Habit
Mounding Spreading
Flavor Profile
Not
Plant Characteristics
Deep Black Blooms
Use
Borders, Containers
Growing Conditions
Full Sun, Loamy Soil
Harvest Advantages
Continuous Bloom
Plant Resistance
Heat Tolerant
Seed Names
Black Velvet Petunia
Seed Type
Hybrid Open-Pollinated
Light Requirement
Full Sun
Planting Depth
Surface Sow
Sowing Method
Indoor or Direct
Plant Spacing
10–12 Inches
Days to Maturity
80–90 Days
Soil Preparation
No Soaking Needed
Hardiness Zones
9–11
Water Needs
Moderate
Planting Season
Spring
Seed Count
Recommended Coverage
100
Up to 50 sq ft
500
Up to 250 sq ft
1000
Up to 500 sq ft