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ヒマワリ — 栽培ガイド
科 キク科
収穫までの日数90 日
日光日当たり良好
耐寒性なし
間隔1/m² (30cm 間隔)
発芽7-14 日
耐寒区分弱い
発芽温度75°F
室内播種3 週前（最後の霜）
コンパニオンプランツ
近くに植えない
ジャガイモゾーン別植え付け日
Frequently Asked Questions
How long does it take to grow ヒマワリ?
ヒマワリ takes approximately 90 days from planting to harvest.
How much sun does ヒマワリ need?
ヒマワリ requires full sun (6+ hours direct sunlight per day).
How far apart should I plant ヒマワリ?
Plant ヒマワリ at 1/sqft (12" apart) using square foot gardening spacing.
Can ヒマワリ survive frost?
ヒマワリ is frost-sensitive and should not be exposed to frost.
What are good companion plants for ヒマワリ?
Good companion plants for ヒマワリ include Cucumbers, Squash, Corn, Beans. Avoid planting near Potatoes.
How long does ヒマワリ take to germinate?
ヒマワリ seeds germinate in 7-14 days at an optimal temperature of 75°F.
When should I start ヒマワリ seeds indoors?
Start ヒマワリ seeds indoors 3 weeks before your last frost date, then transplant 1 weeks after last frost.