When to plant in Laguna Hills, CA
USDA Zone 10bEverything below — frost dates, hardiness zone, and what to plant when in Laguna Hills, California — is derived from the closest NOAA station with complete climate normals.
With only about -4 frost-free days, Laguna Hills has a short season — start heat-lovers indoors early, favor quick-maturing varieties, and use row cover to stretch both ends. In zone 10b, frost is a minor factor for Laguna Hills — 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 Laguna Hills’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 Laguna Hills, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 34 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.
Laguna Hills planting FAQ
When is the last spring frost in Laguna Hills, CA?
Plan for the last spring frost in Laguna Hills 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 Laguna Hills, CA?
In Laguna Hills, the first 32°F freeze of fall lands around January 2 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Laguna Hills in?
Laguna Hills is in USDA hardiness zone 10b. In zone 10b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Laguna Hills?
Laguna Hills 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 Laguna Hills?
For Laguna Hills, 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 Laguna Hills
An email when it’s time to start seeds, transplant, and sow — timed to Laguna Hills’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Aliso Viejo · 3 km
- Laguna Woods · 4 km
- Mission Viejo · 4 km
- Laguna Niguel · 7 km
- Ladera Ranch · 7 km
- Lake Forest · 7 km
- Laguna Beach · 8 km
- Rancho Santa Margarita · 10 km
Frost dates recorded at LAGUNA BEACH, 9 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 Laguna Hills, CA — Frost Dates & Zone 10b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00044647. Retrieved from https://blissgarden.com/california/laguna-hills.