Gourd Seeds – Sponge

Grow productive and versatile Sponge Gourds with these premium heirloom seeds. Also known as luffa gourds, this fast-growing variety produces long, ridged fruits that can be harvested young for cooking or allowed to fully mature and dry into natural sponges. These Non-GMO, Organic seeds offer high germination and develop into vigorous vines that thrive in warm, sunny conditions.

Sponge Gourd plants are known for their fast growth, high yields, and multiple uses, making them an excellent choice for home gardeners, vertical gardens, and trellised spaces.

Features

• Heirloom Variety: Traditional sponge gourd (luffa) known for reliability.

• Non-GMO & Organic: Free from synthetic chemicals or modifications.

• High Germination Rate: Supports strong, uniform seedling development.

• Dual-Purpose Use: Young fruits for cooking; mature gourds for natural sponges.

• Fast-Growing Vines: Ideal for trellises, fences, and vertical gardening.

• High Yield: Produces multiple long fruits throughout the season.

Specifications

• Seed Type: Heirloom, Non-GMO, Organic

• Common Name (US): Gourd Seeds

• Variety: Sponge Gourd (Luffa)

• Fruit Shape: Long, cylindrical, slightly ridged

• Fruit Color: Light to medium green

• Growth Habit: Vining annual

• Vine Length: 10–15 feet or more

• Days to Germination: 7–14 days

• Germination Temperature: 70–90°F

• Days to Maturity: 90–120 days

• Sun Requirements: Full sun

• Soil Preference: Fertile, well-drained soil with organic matter

• Watering Needs: Moderate, consistent moisture

• Hardiness Zones: USDA Zones 3–10 (grown as an annual)

• Planting Season:

  • Spring Planting: April–June, after last frost

• Indoor Sowing: Start indoors 3–4 weeks before transplanting

• Outdoor Sowing: Direct sow when soil is warm (above 70°F)

• Spacing: 24–36 inches between plants; 4–6 feet between rows

• Support: Best grown on strong trellises for straight, clean gourds

• Harvest Period: Late summer through fall (August–October)