When to plant in Union Park, FL
USDA Zone 10aUnion Park, Florida frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
A ~-4-day frost-free window makes Union Park a short-season garden: choose early varieties and start long-season crops indoors well ahead of the last frost. Zone 10a is warm enough that Union Park 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 Union Park’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 Union Park, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 24 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.
Union Park planting FAQ
When is the last spring frost in Union Park, FL?
On average, the last spring frost in Union Park is around January 17 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Union Park, FL?
Expect Union Park's first fall frost near January 13 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Union Park in?
Union Park is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Union Park?
There are roughly -4 frost-free days in Union Park (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 Union Park?
In Union Park, 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 Union Park
An email when it’s time to start seeds, transplant, and sow — timed to Union Park’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Azalea Park · 6 km
- Alafaya · 7 km
- Goldenrod · 7 km
- Winter Park · 11 km
- Oviedo · 12 km
- Conway · 12 km
- Orlando · 13 km
- Casselberry · 13 km
Frost dates recorded at ORLANDO EXECUTIVE AP, 10 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 Union Park, FL — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012841. Retrieved from https://blissgarden.com/florida/union-park.