Generally — Most Areas
asystasia (zones 10-13) partially overlaps with Florida (8a-11b). It can grow in zones 10-11 within the state.
Your yard isn't the whole zone.
Florida spans zones 8a-11b, but your yard has its own microclimate — slope, trees, and low spots shift frost and sun across a single parcel. Enter your address and we'll score asystasia against your land's actual soil, sun, and frost.
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Zone Comparison
Asystasia Needs
- USDA Zones: 10-13
- Soil pH: 3.5 - 5
- Sun: Part Sun
- Drainage: poorly (saturated >50% of year), well (dry spells)
- Frost-Free Days: 42+
Florida Has
- USDA Zones: 8a-11b
- Last Frost: Jan 1 - Mar 15
- First Frost: Nov 15 - never (south FL)
- Annual Rainfall: 50-65 inches
- Common Soils: Sandy, Muck (Everglades), Shell-rock (Keys)
Plant Zone Range (zones 10-13)
Preferred Soil pH
Plant data: USDA PLANTS Database / plant_species_v5.csv. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
Growing Season Fit
Zone compatibility says you can survive winter here. Whether the growing season is long enough — and warm enough — is a different question.
Frost-free days
Asystasia wants 42+ frost-free days; a typical Florida site sees ~320 (NOAA Climate Normals). That leaves comfortable headroom for succession planting.
Climate aggregates derive from USDA NRCS county-level hardiness data + Cornell CALS Extension GDD-by-region tables + MSU Extension chill-hours-by-zone (1991-2020 NOAA Climate Normals baseline).
Soil + Drainage Fit
Asystasia prefers acidic soil (pH 3.5-5). Florida's sandy can run on the acidic side, which often aligns well — confirm with a soil test before planting. Drainage matters: this plant wants poorly (saturated >50% of year), well (dry spells). If your Florida site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Plant pH and drainage requirements from USDA PLANTS Database. Florida soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Asystasia in Florida — Quick Answer
- Verdict: Generally — Most Areas
- Plant Zones: 10-13 (USDA PLANTS Database)
- State Zones: 8a-11b (USDA ARS PHZM 2023)
- Growing Season: Jan 1 - Mar 15 to Nov 15 - never (south FL) (NOAA Climate Normals)
What Else to Consider
Zone compatibility tells you about winter cold survival — but Florida growers also need to think about:
Sandy soils drain too fast and hold few nutrients — frequent fertilization needed
Build organic matter relentlessly — compost and cover crops turn sand into soil that holds both water and food.
Humidity drives fungal diseases (powdery mildew, black spot, rust)
Space plants for airflow, water at the base in the morning, and choose resistant varieties — your extension office lists the proven ones.
Hurricane season (June-November) can destroy plantings
Favor wind-tough perennials, stake young trees properly, and keep fall crops in containers you can move ahead of a storm.
Nematodes are a serious pest in sandy FL soils
Summer solarization and crop-family rotation knock nematodes back — your extension office can confirm the species from a soil sample.
Pollinator + Wildlife Value
Asystasia draws pollinators (moderate value, USDA PLANTS Database). Planting it near vegetable beds can lift fruit set on neighboring crops.
Florida Cooperative Extension
For Florida-specific cultivar recommendations, planting calendars, and pest pressure for asystasia, the canonical source is UF/IFAS Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Asystasia native to Florida?
No — the USDA PLANTS Database lists Asystasia as introduced rather than native in the Lower 48, so it is not part of Florida's native flora. It grows here as a garden plant; pairing it with a few Florida natives keeps local pollinators fed too.
Looking for plants that belong here? The Florida growing guide lists USDA-documented natives for the state.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Asystasia in Florida
When can I plant Asystasia in Florida?
Florida's last spring frost runs jan 1 - mar 15 and first fall frost nov 15 - never (south fl) (NOAA Climate Normals 1991-2020). Time outdoor planting to after the last-frost window for your specific site, and pull from those dates for transplant scheduling.
What hardiness zone is Asystasia grown in across Florida?
Florida spans USDA hardiness zones 8a-11b (USDA ARS PHZM 2023). Asystasia carries a range of zones 10-13, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Florida site have?
A typical Florida site sees ~320 frost-free days per year (derived from NOAA Climate Normals 1991-2020). Asystasia needs 42+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
Is Asystasia native to Florida?
No — the USDA PLANTS Database lists Asystasia as introduced rather than native in the Lower 48, so it is not part of Florida's native flora. It grows here as a garden plant; pairing it with a few Florida natives keeps local pollinators fed too.
How should I amend the soil for Asystasia in Florida?
Asystasia prefers pH 3.5-5 and poorly (saturated >50% of year), well (dry spells) drainage (USDA PLANTS Database). Most Florida soils run mildly acidic to neutral; many sites land near this band naturally, and a soil test plus targeted sulfur or organic amendment closes any gap.
Will Asystasia actually grow on my specific land in Florida?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores asystasia against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Florida
State-level data is a sketch. Your Growable Ground report scores asystasia against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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