When to Plant Snow Peas in Lafayette County, WI
Lafayette County, Wisconsin gardeners: here's your May plan
A quick May briefing for Lafayette County, Wisconsin gardeners — what's urgent, what's next, and what can wait.
To set up a strong June, finish these tasks
- Starting indoors: snow peas
- First harvests: 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.
Lafayette County, Wisconsin is in USDA Zone 5a. The average last spring frost is April 28 and the first fall frost is October 9, giving you a growing season of approximately 164 days.
At an elevation of 665 feet, Lafayette County receives approximately 31.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Snow Peas to ensure they mature before fall.
Lafayette County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-7.3
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 Lafayette County
How your county's soil matches Snow Peas's growing requirements.
Soil pH
Your soil pH (5.7–7.3) overlaps with Snow Peas's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Lafayette County is excellent for Snow Peas — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.9%). Annual compost additions will help Snow Peas.
How to Plant Snow Peas
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Snow Peas
Sow every 5.7 weeks. Last sowing by Aug 05 to harvest before frost.
For a dedicated fall crop, sow by Jul 31.
Plant Water Budget
Water stress score is 6/10 — 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 | — | 1.4" | 0" | ❄️ Dormant |
| Mar | — | 2.4" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| May | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Jun | 4.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Aug | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Sep | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| Oct | 4.3" | 2.2" | 2.1" | 💧 Light watering |
| Nov | — | 1.8" | 0" | ❄️ Dormant |
| Dec | — | 1.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Lafayette 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 — Lafayette County, WI
Snow Peas Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 24 | Mar 24 – Apr 7 |
| Transplant Outdoors | April 28 | Apr 28 – May 12 |
| Direct Sow | April 14 | Apr 14 – May 5 |
| Harvest | June 23 | Jun 23 – Aug 18 |
| Fall Sowing | July 31 | Jul 31 – Aug 14 |
Plant 1" deep · 4" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
50–65 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
164 days in Lafayette County
Growing Tips for Snow Peas in Lafayette County
Direct sow Snow Peas outdoors after April 28 in Lafayette 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.
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 Lafayette County, WI?
Lafayette County is in Zone 5a with an average last frost of April 28. Plan your Snow Peas planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lafayette County, WI?
Lafayette County, Wisconsin is in USDA Hardiness Zone 5a. The average last spring frost is April 28 and first fall frost is October 9.
Your Lafayette County Garden Planner — Free
A 24-page printable planner built for Lafayette 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.