When to plant in Aliso Viejo, CA
USDA Zone 10bEverything below — frost dates, hardiness zone, and what to plant when in Aliso Viejo, California — is derived from the closest NOAA station with complete climate normals.
Aliso Viejo's growing season is short at roughly -4 days, so succession planting is limited; lean on transplants over direct sowing for anything slow to mature. In zone 10b, frost is a minor factor for Aliso Viejo — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
LAGUNA BEACH · 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 Aliso Viejo’s own odds, recorded at LAGUNA BEACH.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 28 | Jan 30 | Dec 26 | Dec 1 | Dec 26 | Feb 2 |
| 32°F | Feb 11 | Jan 6 | Dec 13 | Dec 12 | Jan 2 | Feb 8 |
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 Aliso Viejo, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 37 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.
Aliso Viejo planting FAQ
When is the last spring frost in Aliso Viejo, CA?
Plan for the last spring frost in Aliso Viejo around January 6 (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 Aliso Viejo, CA?
The first fall frost in Aliso Viejo typically arrives around January 2 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Aliso Viejo in?
Aliso Viejo is in USDA hardiness zone 10b. In zone 10b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Aliso Viejo?
Aliso Viejo has about -4 frost-free days — a short growing season — between the average last spring frost (January 6) and first fall frost (January 2).
When should I plant tomatoes in Aliso Viejo?
For Aliso Viejo, sow tomatoes indoors about November 11–November 25 and move the seedlings out around January 13, after the last spring frost.
Never miss a window in Aliso Viejo
An email when it’s time to start seeds, transplant, and sow — timed to Aliso Viejo’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Laguna Hills · 3 km
- Laguna Woods · 4 km
- Laguna Beach · 5 km
- Laguna Niguel · 6 km
- Mission Viejo · 7 km
- Ladera Ranch · 9 km
- Lake Forest · 10 km
- San Juan Capistrano · 11 km
Frost dates recorded at LAGUNA BEACH, 6 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 Aliso Viejo, CA — Frost Dates & Zone 10b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00044647. Retrieved from https://blissgarden.com/california/aliso-viejo.