When to plant in Altamonte Springs, FL
USDA Zone 10aEverything below — frost dates, hardiness zone, and what to plant when in Altamonte Springs, Florida — is derived from the closest NOAA station with complete climate normals.
Altamonte Springs'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. Zone 10a is warm enough that Altamonte Springs can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
ORLANDO EXECUTIVE 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 Altamonte Springs’s own odds, recorded at ORLANDO EXECUTIVE AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 22 | Jan 25 | Dec 31 | Dec 12 | Jan 6 | Feb 4 |
| 32°F | Feb 9 | Jan 17 | Dec 26 | Dec 23 | Jan 13 | Feb 6 |
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 Altamonte Springs, 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.
Altamonte Springs planting FAQ
When is the last spring frost in Altamonte Springs, FL?
Plan for the last spring frost in Altamonte Springs around January 17 (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 Altamonte Springs, FL?
The first fall frost in Altamonte Springs typically arrives around January 13 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Altamonte Springs in?
Altamonte Springs is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Altamonte Springs?
There are roughly -4 frost-free days in Altamonte Springs (a short growing season), running from the average last frost around January 17 to the first fall frost near January 13.
When should I plant tomatoes in Altamonte Springs?
In Altamonte Springs, start tomato seeds indoors around November 22–December 6, then transplant seedlings outdoors around January 24 once the danger of frost has passed.
Never miss a window in Altamonte Springs
An email when it’s time to start seeds, transplant, and sow — timed to Altamonte Springs’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Maitland · 4 km
- Forest City · 5 km
- Wekiwa Springs · 5 km
- Lockhart · 5 km
- Longwood · 6 km
- Fairview Shores · 7 km
- Casselberry · 7 km
- Winter Park · 9 km
Frost dates recorded at ORLANDO EXECUTIVE AP, 14 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 Altamonte Springs, FL — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012841. Retrieved from https://blissgarden.com/florida/altamonte-springs.