Black Oil Sunflower – No.1 (Annual) A fast-growing, single-season sunflower producing large, pollen-rich blooms that strongly attract bees and other pollinators. Also produces high-energy seeds favored by birds. Easy to grow and well-suited to small garden spaces. Sowing tips: Depth: 20–30 mm (¾–1¼ inch) Germination: 7–10 days Spacing: 15–30 cm (6–12 in) apart for best growth Can be sown dense, but plants will compete and stay smaller Coverage (dense sowing): ~10–20 sq ft per 20 gCoverage (proper spacing): ~30–60 sq ft per 20 g Growing notes: Height: typically 4–7 ft depending on spacing and soil Sun: full sun required (6+ hours) Water: moderate; drought tolerant once established Soil: average garden soil is sufficient Helpful info: Blooms mid to late summer; strong nectar and pollen source Leaving seed heads supports birds and wildlife Stagger planting every 2–3 weeks for extended bloom period Works well as a visual backdrop in flowerbeds or along fences General Sowing (Urban / Flowerbeds) Timing: After last frost (late spring) Prep: Loosen top 2–5 cm of soil, remove weeds Plant: Place seeds at proper depth and cover with soil Water: Keep moist until established Tip: For cleaner appearance in small beds, plant in small clusters instead of broadcasting. General Sowing (All Varieties) Timing: Spring (April–June) or early fall Sun: Full sun preferred (minimum 4–6 hours) Prep: Loosen topsoil (top 2–5 cm), remove weeds Method: Broadcast evenly, lightly rake or press in Water: Keep moist until established Tip: Mix seed with dry sand for even distribution in small flowerbeds.
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