Soil: rich, well-drained soil.
Sow seeds: after risk of frost has passed.
Okay soil temperature: 55°F (13°C) or warmer.
Ideal soil temperature: 70° to 75°F (21° to 25°C).
Sowing instructions: check your seed packet.
Usually 1-inch deep, spacing seeds 6 to 36 inches, depending on variety.
Germination: 2 to 10 days.
Days to maturity: 80 to 120 days.
Container growing: yes, best for smaller, dwarf varieties.
Fertilizer: amend soil with good compost. Can also use granular, slow-release fertilizer as directed on product label.
Growing zones: Sunflowers are native to North America and can be grown as annuals everywhere from Alaska to Mexico.

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