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Product Description
Enhance your garden with Topinambur (also known as Jerusalem Artichoke), a flowering plant known for its tall, elegant stalks and bright, sunflower-like blooms. Ideal for borders, beds, and naturalistic garden designs, this hardy plant offers a long bloom season and adds vibrant color and height to your garden.
Produces bright, sunflower-like flowers on tall stalks
Long bloom season for extended garden enjoyment
Hardy and resilient, suitable for varied garden conditions
Heirloom seeds, non-GMO, perfect for home gardening
Adds visual interest and height to garden borders and beds
Seed Type: Perennial flowering plant
Variety: Topinambur
Plant Height: 5–8 feet
Bloom Season: Summer to early autumn
Sunlight: Full sun
Soil Requirement: Well-drained, fertile soil
Watering: Moderate; maintain evenly moist soil
Soil Preparation: Prepare well-draining, fertile soil enriched with compost or organic matter.
Sowing: Sow seeds lightly on the soil surface and press gently; do not cover deeply.
Spacing: Space seedlings 12–18 inches apart to accommodate mature growth.
Watering: Keep soil evenly moist during germination and early growth.
Light Requirement: Full sun promotes strong growth and vibrant blooms.
Germination Time: 14–28 days under warm conditions (65–75°F).
Transplanting: Carefully transplant seedlings when 3–4 inches tall to permanent locations.
Maintenance: Support tall stems if needed; remove spent flowers to maintain 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