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Product Description
Add seasonal charm to your garden with Madeira Flower Seeds, an heirloom variety prized for its vibrant, long-lasting blooms. Perfect for home gardeners, these GMO-free seeds produce beautiful flowers that brighten garden beds, borders, and container displays throughout their flowering season. Madeira Flowers are easy to grow and offer a reliable, colorful display year after year.
Plant Type: Annual/Perennial flowering plant (depending on climate)
Flower Color: Bright, seasonal blooms (varies by variety)
Growth Habit: Upright; ideal for garden beds, borders, and pots
Blooming Season: Seasonal; typically late spring to early fall
Seed Type: Heirloom, GMO free
Uses: Ideal for ornamental garden beds, borders, patios, and container gardening
Hardiness: Performs well in temperate climates with well-draining soil
Soil Preparation: Use fertile, well-draining soil enriched with organic matter.
Sowing Method: Sow seeds indoors 6–8 weeks before the last frost, or directly outdoors after frost risk has passed.
Planting Depth: Lightly cover seeds with 1/8 inch (3 mm) of soil.
Spacing: Space seedlings 10–12 inches (25–30 cm) apart for optimal growth.
Light Requirements: Full sun to partial shade for best flowering.
Watering: Keep soil evenly moist during germination; moderate watering once plants are established.
Germination Time: Typically 10–18 days depending on conditions.

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