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When to Plant Rhubarb in Muskogee County, OK

Rhubarb is a long-lived perennial vegetable grown for its tart, colorful stalks. Only the stalks are edible as the leaves contain toxic oxalic acid.

Muskogee County, Oklahoma is in USDA Zone 7a. The average last spring frost is April 4 and the first fall frost is October 30, giving you a growing season of approximately 209 days.

At an elevation of 651 feet, Muskogee County receives approximately 25.9 inches of rainfall annually with predominantly loam soil. Summer highs average 92ยฐF, providing good warmth for Rhubarb during the growing season.

Muskogee County, OK (Zone 7a) Long season
209 days
Last Spring Frost April 4
209 growing days
First Fall Frost October 30

Muskogee County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.6

Drainage

Well Drained

Monthly Watering Guide for Rhubarb

Rhubarb needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Rhubarb Needs Rainfall You Supplement Action
Jan โ€” 0.5" 0" โ„๏ธ Dormant
Feb โ€” 0.9" 0" โ„๏ธ Dormant
Mar โ€” 1.8" 0" โ„๏ธ Dormant
Apr 4.3" 2.9" 1.4" ๐Ÿ’ง Light watering
May 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Jun 4.3" 4.4" 0" โœ… Rainfall sufficient
Jul 4.3" 3.6" 0.7" ๐Ÿ’ง Light watering
Aug 4.3" 3" 1.3" ๐Ÿ’ง Light watering
Sep 4.3" 2.6" 1.7" ๐Ÿ’ง Light watering
Oct 4.3" 1.5" 2.8" ๐Ÿšฟ Regular watering
Nov โ€” 0.8" 0" โ„๏ธ Dormant
Dec โ€” 0.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Muskogee County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Rhubarb Planting Timeline โ€” Muskogee County, OK

Rhubarb Planting Calendar

Activity When Date Range
Transplant Outdoors April 25 Apr 25 โ€“ May 9

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May Transplant Outdoors
June โ€”
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

Moderate โ€” regular watering

๐Ÿ“… Days to Maturity

365โ€“730 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: N/A

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

209 days in Muskogee County

Growing Tips for Muskogee County

Plant crowns in early spring in rich, well-drained soil. Do not harvest stalks the first year. Pull (do not cut) stalks at harvest to avoid introducing rot.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rhubarb in Muskogee County, OK?

Muskogee County is in Zone 7a with an average last frost of April 4. Plan your Rhubarb planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Muskogee County, OK?

Muskogee County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is April 4 and first fall frost is October 30.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Muskogee County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Muskogee County, OK. Local conditions may vary. Last updated: April 2026.