When to Plant New Zealand Spinach in Alpena County, MI
May in the garden — Alpena County, Michigan
We've pulled the most time-sensitive tasks for Alpena County, Michigan this May and put them front and centre. Tackle them in order.
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Direct-sow new zealand spinach
Your soil is 57°F — warm enough for these to germinate without babying.
Looking ahead to June
- Transplants going out: 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.
Alpena County, Michigan is in USDA Zone 5a. The average last spring frost is May 19 and the first fall frost is October 3, giving you a growing season of approximately 137 days.
At an elevation of 984 feet, Alpena County receives approximately 31.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for New Zealand Spinach during the growing season.
Alpena County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7.3
Drainage
Well Drained
Plant 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 Alpena County
How your county's soil matches New Zealand Spinach's growing requirements.
Soil pH
Your soil pH (6.0–7.3) is within New Zealand Spinach's preferred range (6.0–7.5).
Soil Texture
The silt loam soil in Alpena County is excellent for New Zealand Spinach — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.3%) — 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 25 to harvest before frost.
Plant Water Budget
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 | — | 1.3" | 0" | ❄️ Dormant |
| Feb | — | 1.5" | 0" | ❄️ Dormant |
| Mar | — | 2.2" | 0" | ❄️ Dormant |
| Apr | — | 3.3" | 0" | ❄️ Dormant |
| May | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Jun | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Jul | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Aug | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| Sep | 4.3" | 3" | 1.3" | 💧 Light watering |
| Oct | 4.3" | 2.2" | 2.1" | 💧 Light watering |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Alpena 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 — Alpena County, MI
New Zealand Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 24 | Mar 24 – Apr 7 |
| Transplant Outdoors | June 2 | Jun 2 – Jun 16 |
| Direct Sow | May 26 | May 26 – Jun 16 |
| Harvest | July 28 | Jul 28 – Aug 25 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | Harvest |
| August | Harvest |
| 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: ideal
🗺️ USDA Zone
Zone 5a
📆 Growing Season
137 days in Alpena County
Growing Tips for New Zealand Spinach in Alpena County
Direct sow New Zealand Spinach outdoors after May 19 in Alpena 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 Alpena County, MI?
Alpena County is in Zone 5a with an average last frost of May 19. Plan your New Zealand Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Alpena County, MI?
Alpena County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 19 and first fall frost is October 3.
Your Alpena County Garden Planner — Free
A 24-page printable planner built for Alpena County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.