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When to Plant New Zealand Spinach in Somervell County, TX

Somervell County, Texas Zone 8b May

Your May gardening checklist

Here's what deserves your attention in Somervell County, Texas this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 19
Avg. first frost November 12
Soil temp (4") 56°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
  1. Start new zealand spinach under lights

    These need a head start before your last frost (March 19). Sow into cells now so you're ready to transplant in a few weeks.

  2. Start harvesting new zealand spinach

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

A few tasks this May that'll pay off in June
  • First harvests: new zealand spinach

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New Zealand spinach is a heat-tolerant ground-cover plant with thick, triangular leaves that taste similar to true spinach. It thrives in hot weather when regular spinach bolts.

Somervell County, Texas is in USDA Zone 8b. The average last spring frost is March 19 and the first fall frost is November 12, giving you a growing season of approximately 238 days.

At an elevation of 4,773 feet, Somervell County receives approximately 64.7 inches of rainfall annually with predominantly clay soil. Summer highs average 90°F, providing good warmth for New Zealand Spinach during the growing season. Clay soil retains moisture well for New Zealand Spinach, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent New Zealand Spinach root diseases.

Somervell County, TX (Zone 8b) Long season
238 days
Last Spring Frost March 19
238 growing days
First Fall Frost November 12

Somervell County Soil Profile

Soil Type

Clay

Soil pH

7.2-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (148 days to spare)
Start indoors: Jan 18 Transplant: Mar 22 🍅 Harvest: May 17 – Jun 14
Recommended (50%) ✓ Fits season (140 days to spare)
Start indoors: Jan 29 Transplant: Apr 2 🍅 Harvest: May 28 – Jun 25
Safe Start (90%) ✓ Fits season (133 days to spare)
Start indoors: Feb 22 Transplant: Apr 26 🍅 Harvest: Jun 21 – Jul 19

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 Somervell County

How your county's soil matches New Zealand Spinach's growing requirements.

Soil pH

Your soil pH (7.2–7.8) overlaps with New Zealand Spinach's range (6.0–7.5), though not a perfect match.

Soil Texture

Heavy clay soil (46% clay) in Somervell County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help New Zealand Spinach.

How to Plant New Zealand Spinach

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

Succession Planting New Zealand Spinach

5
successive plantings in your 238-day season

Sow every 6.3 weeks. Last sowing by Sep 03 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for New Zealand Spinach

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

Month New Zealand Spinach Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 4.3" 4.3" 0" ✅ Rainfall sufficient
Apr 4.3" 6.9" 0" ✅ Rainfall sufficient
May 4.3" 10.2" 0" ✅ Rainfall sufficient
Jun 4.3" 10.5" 0" ✅ Rainfall sufficient
Jul 4.3" 7.5" 0" ✅ Rainfall sufficient
Aug 4.3" 7.8" 0" ✅ Rainfall sufficient
Sep 4.3" 5.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 2.4" 1.9" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

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

New Zealand 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.

New Zealand Spinach needs ~1,094 GDD — county provides 4,165 GDD Excellent fit

New Zealand Spinach Planting Timeline — Somervell County, TX

New Zealand Spinach Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors April 2 Apr 2 – Apr 16
Direct Sow March 26 Mar 26 – Apr 16
Harvest May 28 May 28 – Jun 25

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

238 days in Somervell County

Growing Tips for New Zealand Spinach in Somervell County

Direct sow New Zealand Spinach outdoors after March 19 in Somervell County when soil has warmed and frost danger has passed.

With Somervell County's clay soil (46% clay), work in 3-4 inches of compost before planting New Zealand Spinach. Avoid tilling when soil is wet to prevent compaction.

General growing tips

Soak seeds overnight before planting. Direct sow after last frost. Pinch growing tips regularly to encourage bushy growth and tender new leaves.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant New Zealand Spinach in Somervell County, TX?

Somervell County is in Zone 8b with an average last frost of March 19. Plan your New Zealand Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Somervell County, TX?

Somervell County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 19 and first fall frost is November 12.

🌱

Your Somervell County Garden Planner — Free

A 24-page printable planner built for Somervell County (Zone 8b). 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 Somervell County, TX. 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.