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Black Oil Sunflower Seeds

Black Oil Sunflower Seeds

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$7.98

Grow Black Oil Sunflower from seed for garden beds, borders, containers, or seasonal color. This product page includes concise planting details to help gardeners...

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Germination Support U.S. Customer Support Planting Guidance
SunFull Sun
Height3-10 ft.
Days to Bloom70-100 Days
Sowing SeasonSpring, Summer
USDA ZonesAnnual
Germination Time7-10 Days

About Black Oil Sunflower Seeds

Grow fresh, nutritious sunflower microgreens at home! These organic, Non-GMO seeds are perfect for sprouting and microgreens, providing a crunchy texture and rich, nutty flavor. Packed with vitamins and minerals for a healthy boost in every bite.

✔ Organic & Non-GMO – Pure, chemical-free seeds
✔ Perfect for Sprouting & Microgreens – Fresh greens in days
✔ Rich in Nutrients – Vitamins, minerals, and antioxidants
✔ Easy to Grow Indoors or Outdoors

Great for
Cut Flowers Pollinator
Friendly Heat & Drought Tolerant

Why Gardeners Love It

✓ Adds garden color with an easy seed-starting option

✓ Useful for beds, borders, containers, or mixed plantings

✓ A practical choice for seasonal flower displays

✓ Pairs well with other annual and perennial garden favorites

✓ Good for gardeners building a more colorful outdoor space

Planting Guide

Sow Black Oil Sunflower in spring, summer where it can receive full sun. Keep the seedbed evenly moist until germination, usually 7-10 days.

Grow plants to about 3-10 ft. and plan for blooms in about 70-100 days.

Best suited to USDA zones Annual. Adjust sowing time for your local frost dates and summer heat.

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.

Shipping Policy Return Policy

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.
U.S. SupportReal people, here to help you grow.
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Free Planting Guide

Tips for sowing, growing and enjoying your next seed order.

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Processing time Orders are usually prepared in 1-3 business days when items are in stock.
Estimated delivery Most U.S. seed orders arrive in about 5-12 business days after dispatch.

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