When to Plant Snow Peas in Sheridan County, MT
What to do in May
Here's what deserves your attention in Sheridan County, Montana this month. Everything below is tailored to Zone 3b and timed around your local frost dates.
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Plant out snow peas
Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.
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Direct-sow snow peas
Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.
A few tasks this May that'll pay off in June
- Starting indoors: snow peas
- Fall sowing: snow peas
Snow peas are a flat-podded pea variety eaten whole when the seeds inside are still tiny. They are essential in Asian stir-fries and have a delicate, sweet flavor.
Sheridan County, Montana is in USDA Zone 3b. The average last spring frost is May 17 and the first fall frost is September 18, giving you a growing season of approximately 124 days.
At an elevation of 8,209 feet, Sheridan County receives approximately 16.8 inches of rainfall annually with predominantly loam soil. Summer highs average 79°F, so choose short-season varieties of Snow Peas to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Snow Peas successfully. Mulch heavily to conserve soil moisture.
Sheridan County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.9
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 Sheridan County
How your county's soil matches Snow Peas's growing requirements.
Soil pH
Your soil pH (6.3–7.9) overlaps with Snow Peas's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Sheridan County is excellent for Snow Peas — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.6%). Annual compost additions will help Snow Peas.
How to Plant Snow Peas
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Succession Planting Snow Peas
Sow every 5.7 weeks. Last sowing by Jul 15 to harvest before frost.
For a dedicated fall crop, sow by Jun 26.
Plant Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Snow Peas
Snow Peas needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Snow Peas Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.1" | 0" | ❄️ Dormant |
| Feb | — | 1.1" | 0" | ❄️ Dormant |
| Mar | — | 1.6" | 0" | ❄️ Dormant |
| Apr | — | 1.7" | 0" | ❄️ Dormant |
| May | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Jun | 4.3" | 1.2" | 3.1" | 🚿 Regular watering |
| Jul | 4.3" | 1.5" | 2.8" | 🚿 Regular watering |
| Aug | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Sep | 4.3" | 1.2" | 3.1" | 🚿 Regular watering |
| Oct | — | 1.3" | 0" | ❄️ Dormant |
| Nov | — | 1.1" | 0" | ❄️ Dormant |
| Dec | — | 1.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Sheridan County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Snow Peas 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.
Snow Peas Planting Timeline — Sheridan County, MT
Snow Peas Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 5 | Apr 5 – Apr 19 |
| Transplant Outdoors | May 17 | May 17 – May 31 |
| Direct Sow | May 10 | May 10 – May 31 |
| Harvest | July 12 | Jul 12 – Sep 6 |
| Fall Sowing | June 26 | Jun 26 – Jul 10 |
Plant 1" deep · 4" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Fall Sowing |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
50–65 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 3b
📆 Growing Season
124 days in Sheridan County
Growing Tips for Snow Peas in Sheridan County
Direct sow Snow Peas outdoors after May 17 in Sheridan County when soil has warmed and frost danger has passed.
Common pests for Snow Peas in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.
Sheridan County receives only 17" of rain annually. Snow Peas needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Direct sow in early spring. Pick pods frequently when they are flat and tender for best flavor. Provide support for climbing varieties.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Snow Peas in Other Locations
Frequently Asked Questions
When should I plant Snow Peas in Sheridan County, MT?
Sheridan County is in Zone 3b with an average last frost of May 17. Plan your Snow Peas planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sheridan County, MT?
Sheridan County, Montana is in USDA Hardiness Zone 3b. The average last spring frost is May 17 and first fall frost is September 18.
Your Sheridan County Garden Planner — Free
A 24-page printable planner built for Sheridan County (Zone 3b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.