Sunflower Black Oil Seeds – Heirloom High-Energy Multi-Purpose Favorite

Ontario Grown
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Clear duties overview for US customers at checkout: Grand Seeds covers 50% tariffs on your order!

In Stock - Shipped within 5 days

Contains about 3 grams of seeds

$1.95

SKU: GS-7079-SUN-DT

Free shipping on orders over $50 (in Canada)

Organicly grown

Non GMO

Description

Sunflower Black Oil (Helianthus annuus) is a highly productive heirloom variety famous for its solid black seeds, which are packed with nutritious oils and dense protein. Growing on sturdy, towering 6- to 8-foot stalks, it yields large, classic yellow-petaled flower heads with prominent dark central disks. Exceptionally easy to cultivate and heat-tolerant, this versatile variety is widely grown to attract wild birds to the garden, produce homemade press oil, provide nutritious microgreens, or serve as a dramatic living screen and pollinator landmark.

Specifications

Plant Name: Sunflower Black Oil (Helianthus annuus)
Cultivar Type: Heirloom, Open-Pollinated
Plant Class: Warm-Season Annual Flower / Seed Crop
Color: Bright golden-yellow ray petals surrounding a deep dark brown to black central disk
Plant Characteristics: Sturdy upright stalks (6–8 ft / 1.8–2.4 m), large nodding flower heads (8–12 inches across), solid thin-shelled black seeds rich in oil content
Suitable Space: Garden borders, property lines, living privacy screens, bird-foraging plots, large containers
Season: Warm Season (Late Spring through Autumn)
Best Time for Sowing (Zone 6b): Direct sow outdoors mid-to-late May once soil temperatures exceed 15°C (60°F)
all frost danger has passed.: all frost danger has passed.
Sunlight: Full Sun (6+ hours direct sunlight daily for strong, thick stalks)
Watering Needs: Low to Moderate (drought-tolerant once established; water deeply during flowering
seed set): seed set)
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What is included?

Contains about 3 grams of seeds

Check out the growing specs for the specific organic heirloom seeds you bought.

Good to know

Thin seed shells make it the preferred feeding seed for songbirds, finches, and local wildlife
High oil and nutrient concentration makes it ideal for sprouting, microgreen production, and bird forage
Exceptionally hardy, fast-growing, and effective as a natural windbreak or tall living garden backdrop

Tall, top-heavy seed heads may require staking or sheltering in high-wind garden spots
Maturing seed heads require mesh bagging or protection if saving seed prior to wild bird feeding

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