Ventura County, CA — Planting Guide
Your May gardening checklist
Your garden in Ventura County, California is working on a schedule, even when you're not. Here's where you should be this May.
-
It's harvest week for basil, carrots, and cucumber
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
A few tasks this May that'll pay off in June
- First harvests: basil, carrots, and cucumber
Ventura County is in USDA Zone 10a. The average last spring frost is March 18 and the first fall frost is November 15, giving you a growing season of approximately 242 days.
At an elevation of 2,094 ft, Ventura County receives approximately 19.4 in of rainfall annually. Summer highs average 88°F with winter lows around 53°F. The predominant soil type is Loam.
Based on 28 years of NOAA climate station data, the last frost date here varies by 66 days year to year — ranging from February 6 in warm years to April 12 in cold years. The growing season is trending shorter by about 8.39 days per decade. Ventura County scores 38/100 (Challenging) on the Microclimate Index.
🌡️ Zone
10a (°F to °F min)
❄️ Last Frost
March 18
🍂 First Frost
November 15
📅 Growing Season
242 days
⛰️ Elevation
2,094 ft
🌧️ Annual Rainfall
19.4 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 3.8 in | 10 days | 0.5 in | Low |
| Feb | 4.4 in | 10 days | — | Low |
| Mar | 3.2 in | 8 days | 1.1 in | Moderate |
| Apr | 1.5 in | 5 days | 2.8 in | High |
| May | 0.6 in | 1 days | 3.7 in | Critical |
| Jun | 0.1 in | 0 days | 4.2 in | Critical |
| Jul | 0 in | 0 days | 4.3 in | Critical |
| Aug | 0 in | 0 days | 4.3 in | Critical |
| Sep | 0.2 in | 0 days | 4.1 in | Critical |
| Oct | 0.8 in | 3 days | 3.5 in | Critical |
| Nov | 1.7 in | 6 days | 2.6 in | High |
| Dec | 3.1 in | 9 days | 1.2 in | Moderate |
Annual total: 19.4 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Ventura County Soil Profile
Soil Type
Loam
Soil pH
6-7.7
Drainage
Well Drained
Frost Risk Probability
Based on 28 years of NOAA weather station data from 2 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | Apr 12 | Dec 9 | 241 days |
| Cautious | Apr 4 | Nov 23 | 233 days |
| Average year | Mar 18 | Nov 15 | 242 days |
| Optimistic | Mar 1 | Nov 7 | 251 days |
| Aggressive (risky) | Feb 6 | Oct 29 | 265 days |
Not very — frost dates can vary by ±66 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting shorter here (about 8.4 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.
Gardening Difficulty Score
Ventura County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Ventura County
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Ventura County's climate and soil.
County Extension Office
Ventura County University of California Cooperative Extension Extension Office
Phone: 530-750-1200
Visit Extension Office Website →
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in Ventura County
Finding local nurseries & garden centers in Ventura County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Ventura County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near Ventura County CA" or "garden center Ventura County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Ventura County CA" or check your extension office and local parks department. Facebook groups like "Ventura County Gardeners" or "California Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
14.3 hours
Summer solstice daylight
Shortest Day
9.7 hours
Winter solstice daylight
Peak Sun Hours
13.1 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.9 hr | 5.7 hr | Short day |
| February | 10.8 hr | 6.6 hr | Short day |
| March | 11.7 hr | 7.8 hr | Short day |
| April | 12.9 hr | 9.4 hr | Neutral |
| May | 13.8 hr | 11.2 hr | Neutral |
| June | 14.3 hr | 13.1 hr | Long day |
| July | 14.1 hr | 13 hr | Long day |
| August | 13.3 hr | 12 hr | Neutral |
| September | 12.2 hr | 10.8 hr | Neutral |
| October | 11.1 hr | 8.1 hr | Short day |
| November | 10.2 hr | 6.2 hr | Short day |
| December | 9.7 hr | 5.1 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Mar through Nov.
Best Month to Compost
Apr
Microbial activity peaks when soil is warm.
Active Composting
12 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 54°F | 60°F | ♻️ Active | ~14 weeks |
| Feb | 56°F | 60°F | ♻️ Active | ~14 weeks |
| Mar | 61°F | 64°F | ♻️ Active | ~14 weeks |
| Apr | 67°F | 68°F | 🔥 Peak | ~8 weeks |
| May | 77°F | 73°F | 🔥 Peak | ~8 weeks |
| Jun | 83°F | 79°F | 🔥 Peak | ~8 weeks |
| Jul | 90°F | 85°F | 🔥 Peak | ~8 weeks |
| Aug | 91°F | 88°F | 🔥 Peak | ~8 weeks |
| Sep | 88°F | 85°F | 🔥 Peak | ~8 weeks |
| Oct | 78°F | 81°F | 🔥 Peak | ~8 weeks |
| Nov | 66°F | 73°F | 🔥 Peak | ~8 weeks |
| Dec | 57°F | 65°F | ♻️ Active | ~14 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Ventura County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| Whiteflies | High | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| Spider mites | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| Thrips | High | Mar, Apr, May, Jun, Jul, Aug, Sep |
| Scale insects | Moderate | Apr, May, Jun, Jul, Aug, Sep, Oct |
| Nematodes | Moderate | May, Jun, Jul, Aug, Sep |
Organic pest management tips
- Use row covers on susceptible crops during peak pest months
- Apply neem oil preventatively every 7-14 days during active pest season
- Interplant with strong-scented herbs (basil, marigold) to confuse pests
- Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
- Practice crop rotation — never plant the same family in the same spot within 3 years
Cover Crops for Ventura County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Mar 30 | Sep 20 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Mar 24 | Sep 20 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Mar 22 | Sep 20 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Feb 19 | Sep 20 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | Apr 6 | Oct 18 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (1 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Crimson clover | Sep 20 | Feb 25 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 10 mph Summer: 11 mph
Fall: 9 mph Winter: 9 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5.2/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (915 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
9,668 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
8 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,250 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jan, Feb, Mar, Dec
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
May, Jun, Jul, Aug, Sep, Oct
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 19.4 inches of rain per year
- A 1,000 sq ft roof can collect roughly 9,668 gallons annually
- Rainwater harvesting is fully legal in your state
- In your dry climate, every drop counts — consider a larger cistern system
- Position collection tanks in shade to reduce evaporation and algae growth
Soil & Growing Conditions in Ventura County
Soil Type
Loam
Soil pH 6–7.7 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 9.5/10
Very high drought stress. Irrigation is critical for garden success. Focus on water-efficient techniques and drought-adapted crops.
Season Tips
242-day frost-free season
Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 24-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
Recommended for Your Garden
Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
🥬 Vegetables to Grow in Ventura County
106 vegetables that grow well in Zone 10a with planting dates for Ventura County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Feb 18 | Mar 18 | Mar 25 | Jun 17 – Jul 22 | 80–100 |
| Amaranth | Feb 4 | Mar 18 | Mar 25 | Jun 24 – Aug 12 | 90–120 |
| Artichoke | — | — | Apr 1 | Aug 5 – Oct 14 | 120–180 |
| Arugula | Feb 18 | Feb 25 | Mar 18 | Apr 22 – Jun 24 | 30–50 |
| Asparagus | — | — | Apr 1 | — | 730–1095 |
| Beets | — | Feb 25 | — | Apr 22 – May 20 | 50–70 |
| Belgian Endive | Feb 18 | Feb 25 | Mar 18 | Jul 8 – Sep 2 | 110–150 |
| Bitter Melon | Feb 4 | Mar 18 | Mar 25 | May 27 – Jul 8 | 60–90 |
| Black Beans | — | Mar 25 | — | Jun 24 – Aug 12 | 90–120 |
| Bok Choy | Feb 18 | Feb 25 | Mar 18 | Apr 29 – Jun 3 | 40–60 |
| Broccoli | Feb 18 | Feb 25 | Mar 18 | May 20 – Jul 1 | 60–90 |
| Broccoli Rabe | Feb 18 | Feb 25 | Mar 18 | Apr 29 – Jun 3 | 40–60 |
| Brussels Sprouts | Feb 18 | Feb 25 | Mar 18 | Jun 17 – Aug 12 | 90–130 |
| Butternut Squash | Feb 18 | Mar 18 | Mar 25 | Jun 24 – Jul 29 | 85–110 |
| Cabbage | Feb 18 | Feb 25 | Mar 18 | May 20 – Jul 15 | 60–100 |
| Calabash | Feb 4 | Mar 18 | Mar 25 | Jun 17 – Aug 12 | 80–120 |
| Cardoon | — | — | Apr 1 | Aug 5 – Sep 16 | 120–150 |
| Carrots | — | Feb 25 | — | Apr 29 – Jun 3 | 60–80 |
| Cauliflower | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 15 | 55–100 |
| Celery | Feb 18 | Feb 25 | Mar 18 | Jun 10 – Aug 5 | 80–120 |
| Celtuce | Feb 18 | Feb 25 | Mar 18 | May 20 – Jul 1 | 60–90 |
| Chard | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 1 | 50–60 |
| Chayote | Feb 4 | Mar 18 | Mar 25 | Jul 29 – Oct 7 | 120–180 |
| Chickpeas | Feb 18 | Feb 25 | Mar 18 | Jun 10 – Jul 22 | 80–110 |
| Chicory | Feb 18 | Feb 25 | Mar 18 | May 20 – Jul 1 | 60–85 |
| Chinese Cabbage | Feb 18 | Feb 25 | Mar 18 | May 13 – Jun 10 | 50–70 |
| Christmas Lima Beans | Feb 4 | Mar 18 | Mar 25 | Jun 17 – Jul 22 | 80–100 |
| Collard Greens | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 15 | 55–75 |
| Corn | — | Mar 25 | — | May 27 – Jul 22 | 60–100 |
| Cowpeas | — | Mar 25 | — | May 27 – Jul 8 | 60–90 |
| Cress | Feb 18 | Feb 25 | Mar 18 | Apr 1 – Apr 22 | 14–21 |
| Crookneck Squash | Feb 18 | Mar 18 | Mar 25 | May 13 – Jun 10 | 45–60 |
| Cucumber | Feb 18 | Mar 18 | Mar 25 | May 20 – Jul 15 | 50–70 |
| Daikon | — | Feb 25 | — | Apr 22 – May 20 | 50–70 |
| Delicata Squash | Feb 18 | Mar 18 | Mar 25 | Jun 17 – Jul 22 | 80–100 |
| Edamame | — | Mar 25 | — | Jun 10 – Jul 22 | 75–100 |
| Eggplant | Feb 4 | Mar 18 | Mar 25 | Jun 3 – Aug 5 | 65–85 |
| Endive | Feb 18 | Feb 25 | Mar 18 | May 6 – Jun 10 | 45–65 |
| Escarole | Feb 18 | Feb 25 | Mar 18 | May 13 – Jun 10 | 50–70 |
| Fava Beans | Feb 18 | Feb 25 | Mar 18 | Jun 3 – Jul 15 | 75–100 |
| Fennel | Feb 4 | Mar 18 | Mar 25 | May 27 – Jul 8 | 60–90 |
| Ginger | Feb 4 | Mar 18 | Mar 25 | Nov 25 – Feb 3 | 240–300 |
| Green Beans | — | Mar 25 | — | May 20 – Jul 15 | 50–65 |
| Hot Peppers | Feb 4 | Mar 18 | Mar 25 | Jun 3 – Sep 9 | 70–120 |
| Hubbard Squash | Feb 18 | Mar 18 | Mar 25 | Jul 8 – Aug 12 | 100–120 |
| Jicama | Feb 4 | Mar 18 | Mar 25 | Jul 29 – Oct 7 | 120–180 |
| Kabocha | Feb 18 | Mar 18 | Mar 25 | Jun 24 – Jul 22 | 85–100 |
| Kai Lan | Feb 18 | Feb 25 | Mar 18 | May 6 – Jun 3 | 45–60 |
| Kale | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 8 | 50–70 |
| Kidney Beans | — | Mar 25 | — | Jun 24 – Jul 29 | 85–110 |
| Kohlrabi | Feb 18 | Feb 25 | Mar 18 | May 6 – Jun 10 | 45–65 |
| Komatsuna | Feb 18 | Feb 25 | Mar 18 | Apr 22 – May 27 | 35–50 |
| Leeks | Feb 18 | Feb 25 | Mar 18 | Jun 17 – Sep 2 | 90–150 |
| Lentils | Feb 18 | Feb 25 | Mar 18 | Jun 10 – Jul 22 | 80–110 |
| Lettuce | Feb 18 | Feb 25 | Mar 18 | Apr 22 – Jul 1 | 30–60 |
| Lima Beans | — | Mar 25 | — | May 27 – Jul 8 | 60–90 |
| Loofah | Feb 4 | Mar 18 | Mar 25 | Jul 8 – Sep 9 | 100–150 |
| Luffa | Feb 4 | Mar 18 | Mar 25 | Jun 24 – Sep 9 | 90–150 |
| Mache | Feb 18 | Feb 25 | Mar 18 | Apr 29 – Jun 3 | 40–60 |
| Malabar Spinach | Feb 4 | Mar 18 | Mar 25 | May 20 – Jun 17 | 55–70 |
| Melon | Feb 18 | Mar 18 | Mar 25 | Jun 3 – Jul 22 | 70–100 |
| Microgreens | Feb 18 | Feb 25 | Mar 18 | Mar 25 – Apr 22 | 7–21 |
| Mizuna | Feb 18 | Feb 25 | Mar 18 | Apr 22 – May 20 | 30–45 |
| Mustard Greens | Feb 18 | Feb 25 | Mar 18 | Apr 22 – Jun 24 | 30–50 |
| Napa Cabbage | Feb 18 | Feb 25 | Mar 18 | May 13 – Jun 17 | 55–75 |
| New Zealand Spinach | Feb 4 | Mar 18 | Mar 25 | May 20 – Jun 17 | 55–70 |
| Okra | Feb 4 | Mar 18 | Mar 25 | May 20 – Jul 15 | 50–65 |
| Onion | Feb 18 | Feb 25 | Mar 18 | Jun 17 – Aug 5 | 90–120 |
| Pac Choi | Feb 18 | Feb 25 | Mar 18 | Apr 29 – May 27 | 40–55 |
| Patty Pan Squash | Feb 18 | Mar 18 | Mar 25 | May 13 – Jun 10 | 45–60 |
| Peas | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 8 | 55–70 |
| Peppers | Feb 4 | Mar 18 | Mar 25 | May 27 – Aug 5 | 60–90 |
| Pole Beans | Feb 4 | Mar 18 | Mar 25 | May 20 – Jul 15 | 55–70 |
| Potatoes | Feb 4 | Mar 18 | Mar 25 | Jun 3 – Aug 12 | 70–120 |
| Pumpkin | Feb 18 | Mar 18 | Mar 25 | Jun 24 – Aug 12 | 85–120 |
| Purslane | Feb 18 | Feb 25 | Mar 18 | Apr 29 – Jun 3 | 40–60 |
| Radicchio | Feb 18 | Feb 25 | Mar 18 | May 20 – Jun 24 | 60–80 |
| Radish | — | Feb 25 | — | Mar 25 – Apr 15 | 22–35 |
| Romanesco | Feb 18 | Feb 25 | Mar 18 | Jun 3 – Jul 15 | 75–100 |
| Savoy Cabbage | Feb 18 | Feb 25 | Mar 18 | May 27 – Jul 22 | 70–110 |
| Scallions | Feb 18 | Feb 25 | Mar 18 | May 13 – Jun 10 | 50–70 |
| Scarlet Runner Beans | Feb 4 | Mar 18 | Mar 25 | May 27 – Jul 1 | 60–80 |
| Shallot | Feb 18 | Feb 25 | Mar 18 | Jun 17 – Aug 5 | 90–120 |
| Shiso | Feb 4 | Mar 25 | Mar 25 | May 20 – Jul 15 | 50–70 |
| Snap Peas | Feb 4 | Mar 18 | Mar 25 | May 20 – Jul 15 | 55–70 |
| Snow Peas | Feb 18 | Feb 25 | Mar 18 | May 13 – Jul 8 | 50–65 |
| Soybeans | — | Mar 25 | — | Jun 17 – Aug 12 | 80–120 |
| Spaghetti Squash | Feb 18 | Mar 18 | Mar 25 | Jun 24 – Jul 22 | 85–100 |
| Spinach | Feb 18 | Feb 25 | Mar 18 | Apr 22 – Jun 24 | 35–50 |
| Squash (Summer) | Feb 18 | Mar 18 | Mar 25 | May 13 – Jul 15 | 45–65 |
| Squash (Winter) | Feb 18 | Mar 18 | Mar 25 | Jun 17 – Aug 12 | 80–120 |
| Sunflower | Feb 4 | Mar 18 | Mar 25 | Jun 3 – Jul 22 | 70–100 |
| Sweet Corn | — | Mar 25 | — | May 27 – Jul 8 | 60–90 |
| Sweet Potatoes | Feb 4 | Mar 18 | Mar 25 | Jun 24 – Aug 12 | 90–120 |
| Tatsoi | Feb 18 | Feb 25 | Mar 18 | Apr 22 – May 27 | 35–50 |
| Tomatillo | Feb 4 | Mar 18 | Mar 25 | May 27 – Aug 5 | 60–85 |
| Tomatoes | Feb 4 | Mar 18 | Mar 25 | May 27 – Aug 5 | 60–85 |
| Turmeric | Feb 4 | Mar 18 | Mar 25 | Nov 25 – Feb 3 | 240–300 |
| Turnip | — | Feb 25 | — | Apr 8 – May 13 | 40–60 |
| Watercress | Feb 18 | Feb 25 | Mar 18 | Apr 29 – Jun 3 | 40–60 |
| Watermelon | Feb 18 | Mar 18 | Mar 25 | Jun 3 – Jul 22 | 70–100 |
| Wax Beans | — | Mar 25 | — | May 20 – Jul 15 | 50–65 |
| Winter Melon | Feb 4 | Mar 18 | Mar 25 | Jun 24 – Aug 12 | 90–120 |
| Yam | Feb 4 | Mar 18 | Mar 25 | Sep 23 – Mar 10 | 180–330 |
| Yard Long Beans | Feb 4 | Mar 18 | Mar 25 | May 20 – Jul 1 | 55–80 |
| Zucchini | Feb 18 | Mar 18 | Mar 25 | May 13 – Jul 8 | 45–60 |
🍓 Fruits to Grow in Ventura County
16 fruits that grow well in Zone 10a with planting dates for Ventura County.
Show all 16 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 1 | Jul 1 – Oct 14 | 90–180 |
| Blackberries | — | — | Apr 1 | — | 365–730 |
| Boysenberries | — | — | Apr 1 | — | 365–730 |
| Cantaloupe | — | — | Apr 1 | Jun 10 – Jul 15 | 70–90 |
| Che Fruit | — | — | Apr 1 | — | 1095–1825 |
| Dragon Fruit | — | — | Apr 1 | — | 365–730 |
| Figs | — | — | Apr 1 | — | 730–1825 |
| Goji Berries | — | — | Apr 1 | — | 730–1095 |
| Grapes | — | — | Apr 1 | — | 730–1095 |
| Ground Cherry | — | — | Apr 1 | Jun 10 – Aug 5 | 65–80 |
| Guava | — | — | Apr 1 | — | 365–730 |
| Honeydew | — | — | Apr 1 | Jun 24 – Aug 5 | 80–110 |
| Loquat | — | — | Apr 1 | — | 730–1825 |
| Passion Fruit | — | — | Apr 1 | — | 365–545 |
| Pomegranate | — | — | Apr 1 | — | 730–1095 |
| Strawberries | — | — | Apr 1 | Jul 1 – Mar 31 | 90–365 |
🌿 Herbs to Grow in Ventura County
23 herbs that grow well in Zone 10a with planting dates for Ventura County.
Show all 23 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Anise | Feb 18 | Feb 25 | Mar 11 | Jun 10 – Aug 26 | 90–120 |
| Basil | Feb 4 | Mar 25 | Mar 25 | May 20 – Jul 22 | 50–75 |
| Borage | Feb 18 | Feb 25 | Mar 11 | May 6 – Jun 24 | 50–60 |
| Chervil | Feb 18 | Feb 25 | Mar 11 | Apr 22 – Jun 24 | 40–60 |
| Chives | — | — | Mar 25 | May 27 – Aug 5 | 60–90 |
| Cilantro | Feb 18 | Feb 25 | Mar 11 | Apr 22 – Jun 24 | 40–60 |
| Cumin | Feb 18 | Feb 25 | Mar 11 | Jun 24 – Aug 26 | 100–120 |
| Dill | Feb 18 | Feb 25 | Mar 11 | Apr 22 – Jun 24 | 40–60 |
| Epazote | Feb 4 | Mar 25 | Mar 25 | May 13 – Jul 8 | 45–60 |
| Fennel (herb) | Feb 18 | Feb 25 | Mar 11 | May 13 – Jul 22 | 60–90 |
| Garlic Chives | — | — | Mar 25 | May 27 – Aug 5 | 60–90 |
| Horehound | — | — | Mar 25 | Jun 10 – Aug 5 | 75–90 |
| Lemon Verbena | Feb 4 | Mar 25 | Mar 25 | May 27 – Aug 5 | 60–90 |
| Lemongrass | Feb 4 | Mar 25 | Mar 25 | Jun 10 – Sep 9 | 75–120 |
| Marjoram | — | — | Mar 25 | May 27 – Aug 5 | 60–90 |
| Mint | — | — | Mar 25 | May 27 – Aug 5 | 60–90 |
| Oregano | — | — | Mar 25 | May 27 – Aug 5 | 60–90 |
| Parsley | Feb 18 | Feb 25 | Mar 11 | May 13 – Jul 15 | 60–80 |
| Rosemary | — | — | Mar 25 | Jun 17 – Nov 4 | 80–180 |
| Sage | — | — | Mar 25 | Jun 10 – Aug 5 | 75–90 |
| Savory | — | — | Mar 25 | May 20 – Jul 15 | 50–70 |
| Stevia | Feb 4 | Mar 25 | Mar 25 | May 27 – Aug 5 | 60–90 |
| Thai Basil | Feb 4 | Mar 25 | Mar 25 | May 20 – Jul 22 | 50–75 |
Monthly Planting Guide for Ventura County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Ventura County.
Frequently Asked Questions
What planting zone is Ventura County, CA?
Ventura County is in USDA Hardiness Zone 10a. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Ventura County, CA?
Based on 28 years of NOAA weather station data, the median last spring frost in Ventura County falls around March 18. In 8 out of 10 years, last frost lands between February 6 and April 12 — a 66-day window of variability. Use April 12 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Ventura County, CA?
The median first fall frost in Ventura County arrives around November 15. In cold years it can arrive as early as October 29; in mild years as late as December 9. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Ventura County?
Ventura County has a frost-free growing season of approximately 242 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending shorter by about 8.39 days per decade.
What is the soil like in Ventura County for gardening?
Ventura County has predominantly Loam soil with a pH range of 6–7.7 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Ventura County?
Ventura County has commercial agriculture that includes Lettuce, Strawberries, Broccoli, Avocados. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Ventura County a good location for home gardening?
Ventura County scores 38/100 (Challenging) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Gardening here benefits from close attention to frost timing and season extension due to the challenging microclimate factors.
Your Ventura County Garden Planner — Free
A 24-page printable planner built for Ventura 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.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log