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Product Description
White Ptarmica Flower Seeds for Planting – Vibrant Colors, Heirloom & GMO Free Seeds for Home Garden
Bring bright, delicate charm to your garden with White Ptarmica flowers. These heirloom, non-GMO seeds produce crisp white blooms with a subtle fragrance, perfect for garden borders, rock gardens, and container planting. Easy to grow and low-maintenance, White Ptarmica adds long-lasting color and texture to home gardens.
Features & Specifications:
Plant Type: Ptarmica (Ptarmica spp.)
Flower Color: White
Growth Habit: Low-growing, spreading perennial
Seed Type: Heirloom & GMO-free, selected for high germination
Plant Height: 4–8 inches (10–20 cm)
Sun Requirement: Full sun to partial shade
Soil Preference: Well-drained, sandy or loamy soil
Blooming Season: Late spring to summer
Uses: Garden borders, rock gardens, container planting, and ornamental displays
Planting & Sowing Instructions:
Seed Preparation: No pre-treatment required; stratification may improve germination in cooler climates.
Sowing: Plant seeds in trays, pots, or directly in prepared garden soil.
Depth: Sow seeds 0.5 cm deep and cover lightly with soil.
Watering: Keep soil consistently moist until seedlings establish.
Temperature: Germinates best at 18–22°C (65–72°F).
Germination Time: 2–3 weeks.
Transplanting: Space seedlings 10–15 cm apart when moving outdoors.
Care: Minimal maintenance; occasional deadheading prolongs blooming and maintains plant health.

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