When to Plant Carrots in Siskiyou County, CA
Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.
Siskiyou County, California is in USDA Zone 7a. The average last spring frost is May 15 and the first fall frost is October 1, giving you a growing season of approximately 139 days.
At an elevation of 251 feet, Siskiyou County receives approximately 36 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 84°F, so choose short-season varieties of Carrots to ensure they mature before fall. Sandy soil warms quickly in spring — great for early planting — but Carrots will need more frequent watering and organic matter to retain nutrients.
Siskiyou County Soil Profile
Soil Type
Sandy Loam
Soil pH
6-6.9
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.
Plant Water Budget
Carrots Planting Timeline — Siskiyou County, CA
Carrots Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 1 | May 1 – May 22 |
| Fall Sowing | July 23 | Jul 23 – Aug 6 |
| Harvest | July 3 | Jul 3 – Aug 7 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | — |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
60–80 days
Soil pH
6 – 6.8
USDA Zone
Zone 7a
Growing Season
139 days
Growing Tips for Siskiyou County
Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial — requires two seasons.
Carrots in Other Locations
Frequently Asked Questions
When should I plant Carrots in Siskiyou County, CA?
Siskiyou County is in Zone 7a with an average last frost of May 15. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.
What planting zone is Siskiyou County, CA?
Siskiyou County, California is in USDA Hardiness Zone 7a. The average last spring frost is May 15 and first fall frost is October 1.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Siskiyou County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.
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