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When to Plant Kiwi in Cotton County, OK

Cotton County, Oklahoma Zone 8a May

What to do in May

Your garden in Cotton County, Oklahoma is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 25
Avg. first frost November 10
Soil temp (4") 66°F
Watering High
Pest pressure Moderate
Daylight 13.8 hrs

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Kiwi vines produce fuzzy, tangy-sweet fruits and need both male and female plants for pollination. Hardy kiwi varieties (A. arguta) are suited to colder climates.

Cotton County, Oklahoma is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 10, giving you a growing season of approximately 230 days.

At an elevation of 1,015 feet, Cotton County receives approximately 20.6 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Kiwi during the growing season.

Cotton County, OK (Zone 8a) Long season
230 days
Last Spring Frost March 25
230 growing days
First Fall Frost November 10

Cotton County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 4
Recommended (50%) ✓ Fits season
Transplant: Apr 15
Safe Start (90%) ✓ Fits season
Transplant: May 6

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Cotton County

How your county's soil matches Kiwi's growing requirements.

Soil pH

Your soil pH (6.3–7.5) overlaps with Kiwi's range (5.5–7.0), though not a perfect match.

Soil Texture

The loam soil in Cotton County is excellent for Kiwi — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.8%). Annual compost additions will help Kiwi.

How to Plant Kiwi

72"
Between Plants
96"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.4″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,277 gal / 100 sq ft

Monthly Watering Guide for Kiwi

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

Month Kiwi Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 4.3" 1.4" 2.9" 🚿 Regular watering
Apr 4.3" 2.2" 2.1" 💧 Light watering
May 4.3" 2.7" 1.6" 💧 Light watering
Jun 4.3" 2.9" 1.4" 💧 Light watering
Jul 4.3" 2.9" 1.4" 💧 Light watering
Aug 4.3" 2.6" 1.7" 💧 Light watering
Sep 4.3" 1.9" 2.4" 🚿 Regular watering
Oct 4.3" 1.5" 2.8" 🚿 Regular watering
Nov 4.3" 0.8" 3.5" 🚿 Regular watering
Dec 0.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Cotton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Kiwi Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Kiwi needs ~27,740 GDD — county provides 4,370 GDD May not mature

Kiwi Planting Timeline — Cotton County, OK

Kiwi Planting Calendar

Activity When Date Range
Transplant Outdoors April 15 Apr 15 – Apr 29

· 72" apart · Rows 96" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

1095–1825 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

230 days in Cotton County

Growing Tips for Kiwi in Cotton County

Direct sow Kiwi outdoors after March 25 in Cotton County when soil has warmed and frost danger has passed.

Your 230.0-day growing season in Cotton County is tight for Kiwi (1095.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

Cotton County receives only 21" of rain annually. Kiwi needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant one male vine for every 6-8 female vines. Provide a very sturdy arbor or T-bar trellis. Prune heavily in winter. Protect young plants from frost in cold zones.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kiwi in Cotton County, OK?

Cotton County is in Zone 8a with an average last frost of March 25. Plan your Kiwi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cotton County, OK?

Cotton County, Oklahoma is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 10.

🌱

Your Cotton County Garden Planner — Free

A 24-page printable planner built for Cotton County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.