When to plant in San Buenaventura (Ventura), CA
USDA Zone 10aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for San Buenaventura (Ventura), California — all computed from San Buenaventura (Ventura)'s nearest NOAA weather station.
A ~-3-day frost-free window makes San Buenaventura (Ventura) a short-season garden: choose early varieties and start long-season crops indoors well ahead of the last frost. Heads up: the nearest complete-normals station is about 17 km from San Buenaventura (Ventura), so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 10a is warm enough that San Buenaventura (Ventura) can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average last spring frost in San Buenaventura (Ventura) is now 33 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
CAMARILLO AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are San Buenaventura (Ventura)’s own odds, recorded at CAMARILLO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 9 | Feb 1 | Dec 24 | Nov 27 | Dec 17 | Jan 22 |
| 32°F | Feb 2 | Dec 31 | Dec 11 | Dec 7 | Dec 28 | Jan 29 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in San Buenaventura (Ventura), drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
San Buenaventura (Ventura) planting FAQ
When is the last spring frost in San Buenaventura (Ventura), CA?
Plan for the last spring frost in San Buenaventura (Ventura) around December 31 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in San Buenaventura (Ventura), CA?
The first fall frost in San Buenaventura (Ventura) typically arrives around December 28 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is San Buenaventura (Ventura) in?
San Buenaventura (Ventura) is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in San Buenaventura (Ventura)?
There are roughly -3 frost-free days in San Buenaventura (Ventura) (a short growing season), running from the average last frost around December 31 to the first fall frost near December 28.
When should I plant tomatoes in San Buenaventura (Ventura)?
In San Buenaventura (Ventura), start tomato seeds indoors around November 5–November 19, then transplant seedlings outdoors around January 7 once the danger of frost has passed.
Never miss a window in San Buenaventura (Ventura)
An email when it’s time to start seeds, transplant, and sow — timed to San Buenaventura (Ventura)’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Oxnard · 9 km
- Port Hueneme · 13 km
- Santa Paula · 20 km
- Camarillo · 21 km
- Carpinteria · 26 km
- Fillmore · 34 km
- Moorpark · 35 km
- Thousand Oaks · 36 km
Frost dates recorded at CAMARILLO AP, 17 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in San Buenaventura (Ventura), CA — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00023136. Retrieved from https://blissgarden.com/california/san-buenaventura-ventura.