When to Plant Spinach in Emery County, UT
Spinach is a nutrient-packed cool-season green that grows quickly in spring and fall. It is rich in iron, vitamins, and antioxidants and excellent raw or cooked.
Emery County, Utah is in USDA Zone 5b. The average last spring frost is May 11 and the first fall frost is October 4, giving you a growing season of approximately 146 days.
At an elevation of 7,259 feet, Emery County receives approximately 15.6 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Spinach during the growing season. With low rainfall, drip irrigation is essential for growing Spinach successfully. Mulch heavily to conserve soil moisture.
Emery County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.9
Drainage
Well Drained
Monthly Watering Guide for Spinach
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 | Spinach Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1" | 0" | ❄️ Dormant |
| Feb | — | 0.9" | 0" | ❄️ Dormant |
| Mar | — | 1.5" | 0" | ❄️ Dormant |
| Apr | — | 1.7" | 0" | ❄️ Dormant |
| May | 4.3" | 2" | 2.3" | 🚿 Regular watering |
| Jun | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Jul | 4.3" | 1.4" | 2.9" | 🚿 Regular watering |
| Aug | 4.3" | 1.6" | 2.7" | 🚿 Regular watering |
| Sep | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Oct | 4.3" | 1.5" | 2.8" | 🚿 Regular watering |
| Nov | — | 0.9" | 0" | ❄️ Dormant |
| Dec | — | 1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Emery County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Spinach Planting Timeline — Emery County, UT
Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 6 | Apr 6 – Apr 20 |
| Transplant Outdoors | May 11 | May 11 – May 25 |
| Direct Sow | April 27 | Apr 27 – May 18 |
| Harvest | June 15 | Jun 15 – Aug 17 |
| Fall Sowing | July 26 | Jul 26 – Aug 9 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
35–50 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
146 days in Emery County
Growing Tips for Emery County
Direct sow as soon as soil can be worked in spring. Plant in partial shade for summer crops to delay bolting. Succession plant every 2 weeks for continuous harvest.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.
Spinach in Other Locations
Frequently Asked Questions
When should I plant Spinach in Emery County, UT?
Emery County is in Zone 5b with an average last frost of May 11. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Emery County, UT?
Emery County, Utah is in USDA Hardiness Zone 5b. The average last spring frost is May 11 and first fall frost is October 4.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Emery County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
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