When should I plant Rhubarb in Zone 6b?

Start Rhubarb seeds indoors around Feb 4. Transplant outdoors after Mar 18. Expect first harvest around Mar 18.

What is the last frost date for Zone 6b?

The average last spring frost date for Zone 6b is Apr 15. The first fall frost averages Oct 22, giving a 190-day growing season.

Can I grow Rhubarb in Zone 6b?

Yes. Rhubarb needs 90 days to harvest. Zone 6b has a 190-day growing season, which is sufficient.

Growing Rhubarb in Zone 6b

Zone 6b has mild winters and a long growing season -- good conditions for Rhubarb. น้ำค้างแข็งครั้งสุดท้าย: Apr 15. น้ำค้างแข็งครั้งแรก: Oct 22.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 4Oct 22

Season: Apr 15 – Oct 22 (190 วัน)

โซน6b

น้ำค้างแข็งครั้งสุดท้ายApr 15

น้ำค้างแข็งครั้งแรกOct 22

ฤดูกาล190 วัน

เก็บเกี่ยว90 วัน

แสงแดดแดดเต็มที่

When to Plant Rhubarb in Zone 6b

Start Seeds Indoors: Feb 4

Start Rhubarb seeds indoors around Feb 4 (10 สัปดาห์ก่อนน้ำค้างแข็งครั้งสุดท้าย). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: Mar 18

Transplant Rhubarb seedlings outdoors after Mar 18. Wait until soil temperature reaches 40F. Space plants at 1/ตร.ม. (30cm ห่างกัน). Harden off plants for a week before moving outside.

Harvest: Mar 18

First harvest approximately Mar 18 (~365 วัน from transplant). Continue harvesting until first frost (Oct 22). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

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