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When to Plant Malabar Spinach in Clay County, TN

Clay County, Tennessee Zone 7a May

May in the garden — Clay County, Tennessee

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

Avg. last frost April 12
Avg. first frost October 27
Soil temp (4") 60°F
Watering Moderate
Pest pressure Low
Daylight 13.9 hrs
  1. Fire up the seed-starting tray: malabar spinach

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

Get ahead of 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.

Clay County, Tennessee is in USDA Zone 7a. The average last spring frost is April 12 and the first fall frost is October 27, giving you a growing season of approximately 198 days.

At an elevation of 1,418 feet, Clay County receives approximately 42.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Malabar Spinach during the growing season.

Clay County, TN (Zone 7a) Moderate season
198 days
Last Spring Frost April 12
198 growing days
First Fall Frost October 27
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Clay County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (99 days to spare)
Start indoors: Feb 17 Transplant: Apr 21 🍅 Harvest: Jun 16 – Jul 14
Recommended (50%) ✓ Fits season (100 days to spare)
Start indoors: Feb 22 Transplant: Apr 26 🍅 Harvest: Jun 21 – Jul 19
Safe Start (90%) ✓ Fits season (102 days to spare)
Start indoors: Mar 7 Transplant: May 9 🍅 Harvest: Jul 4 – Aug 1

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 Clay County

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

Soil pH

Your soil pH (5.7–7.1) overlaps with Malabar Spinach's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Malabar Spinach.

Organic Matter

Organic matter is moderate (2.6%). 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 198-day season

Sow every 6.3 weeks. Last sowing by Aug 18 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 314 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 3.9" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 6.5" 3.6" 2.9" 💧 Light watering
May 6.5" 3" 3.5" 🚿 Regular watering
Jun 6.5" 3.6" 2.9" 💧 Light watering
Jul 6.5" 4.4" 2.1" 💧 Light watering
Aug 6.5" 4.3" 2.2" 💧 Light watering
Sep 6.5" 3" 3.5" 🚿 Regular watering
Oct 6.5" 2.4" 4.1" 🚿 Regular watering
Nov 3.3" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Clay 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 ~906 GDD — county provides 2,871 GDD Excellent fit

Malabar Spinach Planting Timeline — Clay County, TN

Malabar Spinach Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors April 26 Apr 26 – May 10
Direct Sow April 19 Apr 19 – May 10
Harvest June 21 Jun 21 – Jul 19

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

198 days in Clay County

Growing Tips for Malabar Spinach in Clay County

Direct sow Malabar Spinach outdoors after April 12 in Clay 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 Clay County, TN?

Clay County is in Zone 7a with an average last frost of April 12. Plan your Malabar Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clay County, TN?

Clay County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 12 and first fall frost is October 27.

🌱

Your Clay County Garden Planner — Free

A 24-page printable planner built for Clay County (Zone 7a). 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 Clay County, TN. 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.