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Product Description
Brighten your garden with Yellow Rudbeckia Triloba flower seeds, a striking heirloom variety known for its cheerful yellow blossoms. With a long blooming season and robust growth, this plant adds vibrant color to borders, beds, and pollinator-friendly gardens. Ideal for gardeners seeking easy-to-grow, long-lasting flowers.
Seed Type: Yellow Rudbeckia Triloba (Heirloom variety)
Color: Bright yellow daisy-like blooms
Growth Habit: Upright, clump-forming perennial
Blooming Season: Summer through autumn
Height: 60–90 cm (24–36 inches)
Uses: Ideal for borders, garden beds, meadows, and pollinator gardens
Seed Quality: Non-GMO, open-pollinated
Best Time to Sow: Early spring indoors or outdoors after the last frost.
Location: Prefers full sun with well-draining soil.
Soil Preparation: Loosen soil and enrich with organic matter for strong root growth.
Sowing Depth: Sow seeds about 0.5 cm (¼ inch) deep.
Spacing: Allow 25–30 cm (10–12 inches) between plants.
Watering: Keep soil lightly moist during germination; moderate watering once established.
Care Tips: Deadhead spent flowers to encourage continuous blooming and maintain plant vigor.

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