When to plant New Zealand Spinach in Dallas County County,
New Zealand Spinach planted in Dallas County County between May 1 and May 22 matures in 70 days — well before the October 9 first frost.
When to Plant New Zealand Spinach in Dallas County, IA
Your June gardening checklist
June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Dallas County, Iowa.
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Sow new zealand spinach in trays indoors
These need a head start before your last frost (April 24). Sow into cells now so you're ready to transplant in a few weeks.
Before July arrives, get these ready
- First harvests: new zealand spinach
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.
Dallas County, Iowa is in USDA Zone 5b. The average last spring frost is April 24 and the first fall frost is October 9, giving you a growing season of approximately 168 days.
At an elevation of 693 feet, Dallas County receives approximately 37.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for New Zealand Spinach during the growing season.
Dallas County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-7
Drainage
Well Drained
New Zealand Spinach Planting Risk Windows
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 Dallas County
How your county's soil matches New Zealand Spinach's growing requirements.
Soil pH
Your soil pH (5.9–7.0) overlaps with New Zealand Spinach's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Dallas County is excellent for New Zealand Spinach — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.9%) — New Zealand Spinach will thrive.
How to Plant New Zealand Spinach
Succession Planting New Zealand Spinach
Sow every 6.3 weeks. Last sowing by Jul 31 to harvest before frost.
New Zealand Spinach Water Budget
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 | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 2.5" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| May | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Jun | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Oct | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Nov | — | 2.4" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Dallas 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 Planting Timeline — Dallas County, IA
New Zealand Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 27 | Feb 27 – Mar 13 |
| Transplant Outdoors | May 8 | May 8 – May 22 |
| Direct Sow | May 1 | May 1 – May 22 |
| Harvest | July 3 | Jul 3 – Jul 31 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
55–70 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5b
📆 Growing Season
168 days in Dallas County
Growing Tips for New Zealand Spinach in Dallas County
Direct sow New Zealand Spinach outdoors after April 24 in Dallas County when soil has warmed and frost danger has passed.
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 →
New Zealand Spinach in Other Locations
Frequently Asked Questions
When should I plant New Zealand Spinach in Dallas County, IA?
Dallas County is in Zone 5b with an average last frost of April 24. Plan your New Zealand Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dallas County, IA?
Dallas County, Iowa is in USDA Hardiness Zone 5b. The average last spring frost is April 24 and first fall frost is October 9.
When should I plant New Zealand Spinach in Dallas County County, ?
In Dallas County County, , plant New Zealand Spinach after the last frost (around April 24) and before the first frost (around October 9). Best results when soil holds above 50°F.
What growing zone is Dallas County County, for New Zealand Spinach?
Dallas County County sits in USDA Zone 5b. New Zealand Spinach grows reliably in zones 5a through 11b, so it's a good fit here.
Can New Zealand Spinach grow in Dallas County County's climate?
Yes — New Zealand Spinach grows well in Dallas County County's temperate climate. Dallas County County averages a 168-day frost-free season, with last frost around April 24 and first frost around October 9.
Your Dallas County Garden Planner — Free
A 22-page printable planner built for Dallas County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.