When to Plant Okra in Sonoma County, CA
Okra is a heat-loving tropical plant that produces edible seed pods. It thrives in hot summers and produces beautiful hibiscus-like flowers before setting pods.
Sonoma County, California is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 26, giving you a growing season of approximately 273 days.
At an elevation of 91 feet, Sonoma County receives approximately 31.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90°F, providing good warmth for Okra during the growing season. Sandy soil warms quickly in spring — great for early planting — but Okra will need more frequent watering and organic matter to retain nutrients.
Sonoma County Soil Profile
Soil Type
Sandy Loam
Soil pH
5.9-7
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 Sonoma County
How your county's soil matches Okra's growing requirements.
Soil pH
Your soil pH (5.9–7.0) overlaps with Okra's range (6.0–7.5), though not a perfect match.
Soil Texture
Sandy soil in Sonoma County warms quickly in spring but drains fast. Okra will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Okra.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Okra.
How to Plant Okra
Succession Planting Okra
Sow every 5.7 weeks. Last sowing by Sep 22 to harvest before frost.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Okra
Okra 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 | Okra Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 6.2" | 0" | ❄️ Dormant |
| Feb | 3.9" | 6.8" | 0" | ✅ Rainfall sufficient |
| Mar | 3.9" | 5.2" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 2.3" | 1.6" | 💧 Light watering |
| May | 3.9" | 0.8" | 3.1" | 🚿 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" | 0.4" | 3.5" | 🚿 Regular watering |
| Oct | 3.9" | 1.3" | 2.6" | 🚿 Regular watering |
| Nov | 3.9" | 2.7" | 1.2" | 💧 Light watering |
| Dec | — | 5.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Nov in Sonoma County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Okra 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.
Okra Planting Timeline — Sonoma County, CA
Okra Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 15 | Jan 15 – Jan 29 |
| Transplant Outdoors | March 5 | Mar 5 – Mar 19 |
| Direct Sow | February 26 | Feb 26 – Mar 19 |
| Harvest | April 30 | Apr 30 – Jun 25 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · 2-3 times/week
📅 Days to Maturity
50–65 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 9a
📆 Growing Season
273 days in Sonoma County
Growing Tips for Okra in Sonoma County
Direct sow Okra outdoors after February 26 in Sonoma County when soil has warmed and frost danger has passed.
Sandy soil in Sonoma County dries quickly — mulch Okra with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
General growing tips
Direct sow after soil reaches 65F. Soak seeds overnight to improve germination. Harvest pods when 2-4 inches long and still tender; they become tough if left too long.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Okra in Other Locations
Frequently Asked Questions
When should I plant Okra in Sonoma County, CA?
Sonoma County is in Zone 9a with an average last frost of February 26. Plan your Okra planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sonoma County, CA?
Sonoma County, California is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 26.
Plan Your Garden with Confidence
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