Dahlia — 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18/m²
発芽7-14 日
耐寒区分弱い
発芽温度75°F
室内播種6 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 Dahlia?
Dahlia takes approximately 90 days from planting to harvest.
How much sun does Dahlia need?
Dahlia requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Dahlia?
Plant Dahlia at 18/sqft using square foot gardening spacing.
Can Dahlia survive frost?
Dahlia is frost-sensitive and should not be exposed to frost.
How long does Dahlia take to germinate?
Dahlia seeds germinate in 7-14 days at an optimal temperature of 75°F.
When should I start Dahlia seeds indoors?
Start Dahlia seeds indoors 6 weeks before your last frost date, then transplant 2 weeks after last frost.