When to Plant Snap Peas in Jefferson County, PA
Snap peas have edible pods with plump, sweet peas inside, combining the best features of snow peas and garden peas. They are a garden favorite for fresh eating.
Jefferson County, Pennsylvania is in USDA Zone 5a. The average last spring frost is May 18 and the first fall frost is October 7, giving you a growing season of approximately 142 days.
At an elevation of 1,026 feet, Jefferson County receives approximately 42.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Snap Peas to ensure they mature before fall.
Jefferson County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.4
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.
Plant Water Budget
Snap Peas Planting Timeline — Jefferson County, PA
Snap Peas Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 23 | Mar 23 – Apr 6 |
| Transplant Outdoors | June 1 | Jun 1 – Jun 15 |
| Direct Sow | May 25 | May 25 – Jun 15 |
| Harvest | July 27 | Jul 27 – Sep 21 |
Plant 1" deep · 4" apart · Rows 18" 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 | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
55–70 days
Soil pH
6 – 7.5
USDA Zone
Zone 5a
Growing Season
142 days
Growing Tips for Jefferson County
Direct sow in early spring as soon as soil can be worked. Provide a trellis 4-6 feet tall. Harvest when pods are plump and snap cleanly when bent.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Snap Peas in Other Locations
Frequently Asked Questions
When should I plant Snap Peas in Jefferson County, PA?
Jefferson County is in Zone 5a with an average last frost of May 18. Plan your Snap Peas planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jefferson County, PA?
Jefferson County, Pennsylvania is in USDA Hardiness Zone 5a. The average last spring frost is May 18 and first fall frost is October 7.
Plan Your Garden with Confidence
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