Cosmos — 栽培ガイド
科 キク科
収穫までの日数55 日
日光日当たり良好
耐寒性なし
間隔12/m²
発芽5-10 日
耐寒区分弱い
発芽温度75°F
室内播種4 週前（最後の霜）
ゾーン別植え付け日
Frequently Asked Questions
How long does it take to grow Cosmos?
Cosmos takes approximately 55 days from planting to harvest.
How much sun does Cosmos need?
Cosmos requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Cosmos?
Plant Cosmos at 12/sqft using square foot gardening spacing.
Can Cosmos survive frost?
Cosmos is frost-sensitive and should not be exposed to frost.
How long does Cosmos take to germinate?
Cosmos seeds germinate in 5-10 days at an optimal temperature of 75°F.
When should I start Cosmos seeds indoors?
Start Cosmos seeds indoors 4 weeks before your last frost date, then transplant 1 weeks after last frost.