When should I plant Rhubarb in Zone 8b?

Start Rhubarb seeds indoors around Jan 11. Transplant outdoors after Feb 22. Expect first harvest around Feb 22.

What is the last frost date for Zone 8b?

The average last spring frost date for Zone 8b is Mar 22. The first fall frost averages Nov 10, giving a 233-day growing season.

Can I grow Rhubarb in Zone 8b?

Yes. Rhubarb needs 90 days to harvest. Zone 8b has a 233-day growing season, which is sufficient.

Growing Rhubarb in Zone 8b

Zone 8b has warm winters and an extended growing season -- excellent for heat-loving crops like Rhubarb. น้ำค้างแข็งครั้งสุดท้าย: Mar 22. น้ำค้างแข็งครั้งแรก: Nov 10.

Planting Calendar

Indoor

Outdoor

Harvest

Jan 11Nov 10

Season: Mar 22 – Nov 10 (233 วัน)

โซน8b

น้ำค้างแข็งครั้งสุดท้ายMar 22

น้ำค้างแข็งครั้งแรกNov 10

ฤดูกาล233 วัน

เก็บเกี่ยว90 วัน

แสงแดดแดดเต็มที่

When to Plant Rhubarb in Zone 8b

Start Seeds Indoors: Jan 11

Start Rhubarb seeds indoors around Jan 11 (10 สัปดาห์ก่อนน้ำค้างแข็งครั้งสุดท้าย). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: Feb 22

Transplant Rhubarb seedlings outdoors after Feb 22. Wait until soil temperature reaches 40F. Space plants at 1/ตร.ม. (30cm ห่างกัน). Harden off plants for a week before moving outside.

Harvest: Feb 22

First harvest approximately Feb 22 (~365 วัน from transplant). Continue harvesting until first frost (Nov 10). 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

Plan Your Garden Rhubarb

Track Rhubarb from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Rhubarb Growing Guide