When to plant Cabbage in Riverside County, CA
The best window to plant Cabbage in Riverside County, is February 3–February 24, when soil warms to 50°F. Last frost typically hits February 24; first frost December 4. A second sowing from October 9 to October 23 extends the harvest into fall.
When to Plant Cabbage in Riverside County, CA
June to-do list for Riverside County, California
Each item below is timed to Riverside County, California's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Basket week: cabbage
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.
Riverside County, California is in USDA Zone 10a. The average last spring frost is February 24 and the first fall frost is December 4, giving you a growing season of approximately 283 days.
At an elevation of 1,206 feet, Riverside County receives approximately 15.5 inches of rainfall annually with predominantly loam soil. Summer highs average 102°F, so Cabbage may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Cabbage successfully. Mulch heavily to conserve soil moisture.
Riverside County Soil Profile
Soil Type
Loam
Soil pH
6.2-7.8
Drainage
Well Drained
Cabbage 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 Riverside County
How your county's soil matches Cabbage's growing requirements.
Soil pH
Your soil pH (6.2–7.8) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Riverside County is excellent for Cabbage — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Cabbage.
How to Plant Cabbage
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Cabbage
Sow every 6.9 weeks. Last sowing by Aug 26 to harvest before frost.
For a dedicated fall crop, sow by Oct 09.
Cabbage Water Budget
Water stress score is 10/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Cabbage
Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.
| Month | Cabbage Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.5" | 0" | ❄️ Dormant |
| Feb | 3.9" | 3.6" | 0.3" | 💧 Light watering |
| Mar | 3.9" | 2.2" | 1.7" | 💧 Light watering |
| Apr | 3.9" | 1.2" | 2.7" | 🚿 Regular watering |
| May | 3.9" | 0.4" | 3.5" | 🚿 Regular watering |
| Jun | 3.9" | 0.1" | 3.8" | 🚿 Regular watering |
| Jul | 3.9" | 0" | 3.9" | 🚿 Regular watering |
| Aug | 3.9" | 0" | 3.9" | 🚿 Regular watering |
| Sep | 3.9" | 0.2" | 3.7" | 🚿 Regular watering |
| Oct | 3.9" | 0.6" | 3.3" | 🚿 Regular watering |
| Nov | 3.9" | 1.5" | 2.4" | 🚿 Regular watering |
| Dec | 3.9" | 2.4" | 1.5" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Riverside County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cabbage 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.
Cabbage Planting Timeline — Riverside County, CA
Cabbage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 27 | Jan 27 – Feb 10 |
| Transplant Outdoors | February 24 | Feb 24 – Mar 10 |
| Direct Sow | February 3 | Feb 3 – Feb 24 |
| Harvest | April 28 | Apr 28 – Jun 23 |
| Fall Sowing | October 9 | Oct 9 – Oct 23 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · 2-3 times/week
📅 Days to Maturity
60–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 10a
📆 Growing Season
283 days in Riverside County
Growing Tips for Cabbage in Riverside County
Direct sow Cabbage outdoors after February 24 in Riverside County when soil has warmed and frost danger has passed.
Summer highs in Riverside County reach 102°F — grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.
Common pests for Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
Riverside County receives only 16" of rain annually. Cabbage needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Cabbage in Other Locations
Frequently Asked Questions
When should I plant Cabbage in Riverside County, CA?
Riverside County is in Zone 10a with an average last frost of February 24. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Riverside County, CA?
Riverside County, California is in USDA Hardiness Zone 10a. The average last spring frost is February 24 and first fall frost is December 4.
When should I plant Cabbage in Riverside County, CA?
In Riverside County, CA, plant Cabbage after the last frost (around February 24) and before the first frost (around December 4). Best results when soil holds above 50°F.
What growing zone is Riverside County, CA for Cabbage?
Riverside County sits in USDA Zone 10a. Cabbage grows reliably in zones 1a through 10b, so it's a good fit here.
Can Cabbage grow in Riverside County's climate?
Yes — Cabbage grows well in Riverside County's temperate climate. Riverside County averages a 284-day frost-free season, with last frost around February 24 and first frost around December 4.
Your Riverside County Garden Planner — Free
A 22-page printable planner built for Riverside County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.