Stevia is a perennial culinary herb, grown for the flavor it brings to the kitchen, ready to harvest about 90 days after planting. It's hardy across USDA zones 10 through 11, stands up to deer and grows just as well in a container as in the ground. Its summer flowers are a modest draw for honeybees and native bees, even though the harvest is the prize.
Stevia — the short answer
Stevia: grown in zones 10–11, full sun, pH 4–7.5, about 90 days to maturity.
- USDA zones
- 10–11
- NC State Extension Gardener Plant Toolbox
- Soil pH
- 4–7.5
- FAO ECOCROP
- Sun
- Full Sun
- Converted from FAO ECOCROP
- Days to Maturity
- 90 days
- We haven't confirmed this against a published source yet.
- Frost-kill temp (growing season)
- 32°F
- FAO ECOCROP
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Stevia on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether stevia actually takes — and those shift from one yard to the next. Enter your address and we'll score stevia against your land's real conditions.
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See Stevia
What Stevia is
Stevia grows as a perennial and reaches around two feet at maturity. It blooms white in summer. It's also deer-resistant and well suited to containers.
Life cycle, mature height, bloom period, flower colour, deer resistance and container suitability: We haven't confirmed this against a published source yet.
How to grow Stevia
Stevia grows in USDA zones 10 through 11 and is ready to harvest about 90 days after planting. Stevia does best in full sun — at least 6 hours of direct sun a day — and soil from pH 4 to 7.5, on well-drained ground. It needs around 2,000 growing degree days to mature, which is why climate matters as much as soil.
USDA Zones
10-11
NC State Extension Gardener Plant Toolbox
Soil pH
4 - 7.5
FAO ECOCROP
Sun
Full Sun
Converted from FAO ECOCROP
Drainage
well (dry spells)
FAO ECOCROP
Frost Kill Temperature
32°F
Where cold starts killing growing tissue. Not a winter-survival floor — a dormant perennial takes far colder, which its hardiness zone answers.
FAO ECOCROP
Minimum Growing Temperature
59°F
Below this it stops growing rather than dies — a pace limit, not a survival limit.
FAO ECOCROP
Days to Maturity
90 days
We haven't confirmed this against a published source yet.
GDD Required
2000+
Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.
We haven't confirmed this against a published source yet.
Mature Height
2 ft
We haven't confirmed this against a published source yet.
Start the season right
Plant stevia in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed. We haven't confirmed this against a published source yet.
Match the soil
Stevia prefers pH 4 to 7.5 (FAO ECOCROP). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. We haven't confirmed this against a published source yet. A 2–3 inch mulch layer holds moisture without waterlogging.
Harvest at maturity
Stevia is ready about 90 days after planting. We haven't confirmed this against a published source yet. Snip sprigs as you need them — regular cutting keeps the foliage tender and slows it bolting to flower.
Where Stevia thrives
Stevia is hardy across USDA zones 10 through 11. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 10–11 spans average winter lows from 30°F to 50°F (USDA PHZM 2023). Across the 50 states and DC, that band covers none outright but splits 8 down the middle — and which side of that line your land sits on changes the answer.
Zones 10–11·Where Stevia growsOpen map →
This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.
Where Stevia stands, state by state
Stevia is rated for zones 10–11 — a cold floor USDA puts at 30 to 40°F. Across the 50 states and DC, 0 sit fully inside that band, the line runs through 8 more, and 43 sit outside it — and inside every split state, the same line runs on at county grain.
The line runs through
8 states
- California · zones 4b-11a
- Nevada · zones 4a-10a
- Arizona · zones 5b-10b
3 of 8 shown
Stevia’s band covers part of each of these states — which side of the line your county sits on changes the answer, and each state page draws it.
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Stevia
Growing guides for stevia
Good to know
Listed as non-toxic to dogs and cats by a source we can't cite. We haven't confirmed this against a published source yet.
Stevia offers low value to bees and other pollinators. We haven't confirmed this against a published source yet.
Before you harvest stevia, know your soil
Anything you grow to eat takes up what's in the ground it grows in, so it's worth knowing what's documented near you before you plant stevia for food. Our free screen reads 8 federal source types across roughly 950K indexed sites and shows which sit near your address and which way they drain. It's a screening estimate from public records and proximity — not a soil test — so a nearby record means a soil test is worth it, not that your soil is unsafe.
Your land is one point inside Stevia's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Stevia will thrive on your land
Zone averages are a start. Your soil pH, drainage, sun exposure, and frost dates shape whether stevia actually takes. We score it against the mapped and modelled conditions at your address.
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.
25+ data sources analyzed in seconds
How we know this about Stevia
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database
Frequently asked questions
Can I grow Stevia in my zone?
Stevia grows in USDA hardiness zones 10 through 11 (NC State Extension Gardener Plant Toolbox). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
How long does Stevia take to grow?
Stevia is ready to harvest about 90 days after planting. We haven't confirmed this against a published source yet. Your local frost dates and soil temperature move that window earlier or later.
When should you plant Stevia?
Most growers plant stevia after the last spring frost, once the soil has warmed. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Stevia need?
Stevia needs full sun — a spot that catches at least 6 hours of direct summer sun a day. We haven't confirmed this against a published source yet. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.
What soil does Stevia need?
Stevia prefers soil pH 4 to 7.5, on well-drained ground (FAO ECOCROP). Your report scores your parcel's mapped soil against that using USDA SSURGO data.
Does Stevia attract pollinators?
Yes — stevia's flowers are a modest nectar source for honeybees and native bees. We haven't confirmed this against a published source yet.