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When to Plant Malabar Spinach in Crittenden County, AR

Crittenden County, Arkansas Zone 8a May

Your May gardening checklist

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 21
Avg. first frost November 5
Soil temp (4") 68°F
Watering Moderate
Pest pressure Moderate
Daylight 13.9 hrs
  1. Indoor seed-starting week for malabar spinach

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Basket week: malabar spinach

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Looking ahead to June
  • First harvests: malabar spinach

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Malabar spinach is a tropical vine with thick, succulent leaves that taste similar to spinach. Unlike true spinach, it thrives in heat and humidity.

Crittenden County, Arkansas is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 5, giving you a growing season of approximately 229 days.

At an elevation of 808 feet, Crittenden County receives approximately 45.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Malabar Spinach during the growing season.

Crittenden County, AR (Zone 8a) Long season
229 days
Last Spring Frost March 21
229 growing days
First Fall Frost November 5
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Crittenden County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (133 days to spare)
Start indoors: Jan 24 Transplant: Mar 28 🍅 Harvest: May 23 – Jun 20
Recommended (50%) ✓ Fits season (131 days to spare)
Start indoors: Jan 31 Transplant: Apr 4 🍅 Harvest: May 30 – Jun 27
Safe Start (90%) ✓ Fits season (132 days to spare)
Start indoors: Feb 19 Transplant: Apr 23 🍅 Harvest: Jun 18 – Jul 16

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 Crittenden County

How your county's soil matches Malabar Spinach's growing requirements.

Soil pH

Your soil pH (5.7–6.5) overlaps with Malabar Spinach's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Crittenden County is excellent for Malabar Spinach — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Malabar Spinach.

How to Plant Malabar Spinach

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Succession Planting Malabar Spinach

4
successive plantings in your 229-day season

Sow every 6.3 weeks. Last sowing by Aug 27 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,646 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Malabar Spinach

Malabar Spinach needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Malabar Spinach Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 6.5" 4.2" 2.3" 💧 Light watering
Apr 6.5" 3.3" 3.2" 💧 Light watering
May 6.5" 3.4" 3.1" 💧 Light watering
Jun 6.5" 3.5" 3" 💧 Light watering
Jul 6.5" 4.6" 1.9" 💧 Light watering
Aug 6.5" 4.7" 1.8" 💧 Light watering
Sep 6.5" 3.6" 2.9" 💧 Light watering
Oct 6.5" 2.4" 4.1" 🚿 Regular watering
Nov 6.5" 3.6" 2.9" 💧 Light watering
Dec 4" 0" ❄️ Dormant

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

Malabar Spinach 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.

Malabar Spinach needs ~1,234 GDD — county provides 4,522 GDD Excellent fit

Malabar Spinach Planting Timeline — Crittenden County, AR

Malabar Spinach Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors April 4 Apr 4 – Apr 18
Direct Sow March 28 Mar 28 – Apr 18
Harvest May 30 May 30 – Jun 27

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July
August
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

229 days in Crittenden County

Growing Tips for Malabar Spinach in Crittenden County

Direct sow Malabar Spinach outdoors after March 21 in Crittenden County when soil has warmed and frost danger has passed.

General growing tips

Direct sow after last frost or start indoors. Provide a trellis for the vigorous vines. Harvest young leaves regularly; older leaves become mucilaginous when cooked.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Malabar Spinach in Crittenden County, AR?

Crittenden County is in Zone 8a with an average last frost of March 21. Plan your Malabar Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Crittenden County, AR?

Crittenden County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 5.

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Your Crittenden County Garden Planner — Free

A 24-page printable planner built for Crittenden 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Crittenden County, AR. 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.