When to Plant Squash (Summer) in Linn County, OR
Summer squash includes zucchini, yellow crookneck, and pattypan varieties that are harvested young and tender. They are prolific producers in warm weather.
Linn County, Oregon is in USDA Zone 8a. The average last spring frost is April 22 and the first fall frost is October 25, giving you a growing season of approximately 186 days.
At an elevation of 259 feet, Linn County receives approximately 37.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Squash (Summer) to ensure they mature before fall.
Linn County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-6.3
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 Linn County
How your county's soil matches Squash (Summer)'s growing requirements.
Soil pH
Your soil pH (5.6–6.3) is more acidic than Squash (Summer) prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Linn County is excellent for Squash (Summer) — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (5.4%) — Squash (Summer) will thrive.
How to Plant Squash (Summer)
Succession Planting Squash (Summer)
Sow every 5.1 weeks. Last sowing by Aug 21 to harvest before frost.
Plant Water Budget
Squash (Summer) Planting Timeline — Linn County, OR
Squash (Summer) Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | May 6 | May 6 – May 20 |
| Direct Sow | April 29 | Apr 29 – May 20 |
| Harvest | June 24 | Jun 24 – Aug 26 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| 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
45–65 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8a
📆 Growing Season
186 days in Linn County
Growing Tips for Squash (Summer) in Linn County
Direct sow Squash (Summer) outdoors after April 22 in Linn County when soil has warmed and frost danger has passed.
Your generous 186.0-day season in Linn County allows multiple plantings of Squash (Summer). Sow every 22.0 days for continuous harvest.
Common pests for Squash (Summer) in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow after last frost on mounds. Harvest frequently when fruits are 6-8 inches for best texture. Check plants daily as they grow rapidly in summer heat.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Squash (Summer) in Other Locations
Frequently Asked Questions
When should I plant Squash (Summer) in Linn County, OR?
Linn County is in Zone 8a with an average last frost of April 22. Plan your Squash (Summer) planting based on this frost date — see the calendar above for exact timing.
What planting zone is Linn County, OR?
Linn County, Oregon is in USDA Hardiness Zone 8a. The average last spring frost is April 22 and first fall frost is October 25.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Linn County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
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