Yacon Seeds
$6.98
50 seeds
SunFull sun
Mature HeightLow-growing vines; vine spread varies with spacing
Years to FruitFruits in the first growing season as an annual crop
Plant Spacing36-72 in. apart, with room for vines
USDA ZonesWarm-season annual; plant after frost when soil is warm
Germination Time7-14 days under warm conditions
About Densuke Watermelon Seeds
Citrullus lanatus
Densuke Watermelon Seeds are for gardeners who want to grow a dark-rinded specialty watermelon during the warm season. Watermelons need heat, full sun, fertile soil, and steady moisture to produce vigorous vines and quality fruit.
Start seeds indoors in cooler regions or direct sow after the soil has warmed. Give plants plenty of room, water consistently at the root zone, and reduce watering as fruit approaches maturity. Fruit quality depends on weather, soil fertility, spacing, and local growing season.
Planting Notes
- Light: full sun
- Best use: warm-season fruit gardens and raised beds
- Sowing: start indoors 2-4 weeks before transplanting or direct sow after frost risk has passed
- Moisture: keep evenly moist while vines and fruit are developing
- Spacing: allow generous room for vines to spread
Long-Term
Garden Homegrown
Fruit Zone Guidance
Garden Homegrown
Fruit Zone Guidance
Why Gardeners Love It
Planting Guide
Shipping & Returns
Fast, reliable delivery
- Processing: Orders are processed within 2 business days.
- U.S. Delivery: U.S. delivery typically takes 4–6 business days after dispatch.
- Shipping: Free U.S. shipping on orders $19.90+ before order discounts. Orders below $19.90 ship for $5.90.
- Returns: Refund requests are accepted within 30 days of delivery, including opened or sown seeds and discounted orders. Contact us for authorization before sending anything back.
Germination Support
If you have a germination or planting-material quality concern, contact support@onsaleseeds.com with your order number and a description of the issue. Photos of your setup can help. You may request a refund within 30 days of delivery under our Return & Refund Policy; opened and sown seeds remain eligible.
Germination SupportGuidance for strong, healthy growth.
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