How long does it take to grow Rhubarb?

Rhubarb takes approximately 90 days from planting to harvest.

How much sun does Rhubarb need?

Rhubarb requires full sun (6+ hours direct sunlight per day).

Plant Rhubarb at 1/sqft (12" apart) using square foot gardening spacing.

Rhubarb is tolerant of heavy frost and can withstand freezing temperatures.

Rhubarb seeds germinate in 7-21 days at an optimal temperature of 65°F.

Start Rhubarb seeds indoors 10 weeks before your last frost date, then transplant -4 weeks after last frost.

科 Polygonaceae

収穫までの日数90 日

日光日当たり良好

耐寒性Heavy

間隔1/m² (30cm 間隔)

発芽7-21 日

耐寒区分非常に強い

発芽温度65°F

室内播種10 週前（最後の霜）

Rhubarbを種から収穫まで追跡。霍日予測、水やり推奨、コンパニオンプランツの可視化。