Upland Cotton is grown for its foliage and the structure it brings to a planting. It's hardy across USDA zones 8 through 11 and shrugs off deer. Its spring flowers are a moderate draw for honeybees and native bees. It roots deep, which helps it reach moisture in a dry spell and open up tight soil as it establishes.
Upland Cotton — the short answer
Upland Cotton: grown in zones 8–11, full sun, pH 5–9.5.
- USDA zones
- 8–11
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- Soil pH
- 5–9.5
- FAO ECOCROP
- Sun
- Full Sun
- Growable Ground Plant Database
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 Upland Cotton on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether upland cotton actually takes — and those shift from one yard to the next. Enter your address and we'll score upland cotton against your land's real conditions.
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What Upland Cotton is
Upland Cotton grows as an annual or perennial and reaches around five feet at maturity. It blooms in spring. It's also deer-resistant.
How to grow Upland Cotton
Upland Cotton grows in USDA zones 8 through 11. Upland Cotton does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 9.5, on well-drained ground. It needs a growing season of at least 150 frost-free days and about 0 hours of winter chill, which is why climate matters as much as soil.
USDA Zones
8-11
USDA PHZM 2023
Soil pH
5 - 9.5
FAO ECOCROP
Sun
Full Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Minimum Growing Temperature
59°F
Below this it stops growing rather than dies — a pace limit, not a survival limit.
FAO ECOCROP
Mature Height
5 ft
Growable Ground plant catalog
Chill Hours
0+
Winter hours below ~45°F it needs to fruit — too-mild winters can leave it bloom-shy.
Growable Ground plant catalog
Frost-Free Days
150+
The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.
Growable Ground plant catalog
Start the season right
Plant upland cotton in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Upland Cotton prefers pH 5 to 9.5 (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. A 2–3 inch mulch layer holds moisture without waterlogging.
Keep it in good form
Prune upland cotton to shape as it grows; the reward is its foliage and structure, not a harvest, so steady upkeep is the whole job.
Where Upland Cotton thrives
Upland Cotton is hardy across USDA zones 8 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 8–11 spans average winter lows from 10°F to 50°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 1 outright and splits 27 more down the middle — and which side of that line your land sits on changes the answer.
Zones 8–11·Where Upland Cotton growsOpen map →
Where Upland Cotton stands, state by state
Upland Cotton is rated for zones 8–11 — a cold floor USDA puts at 10 to 20°F. Across the 50 states and DC, 1 sits fully inside that band, the line runs through 27 more, and 23 sit outside it — and inside every split state, the same line runs on at county grain.
The line runs through
27 states
- Alaska · zones 1a-9a
- Idaho · zones 3b-8a
- California · zones 4b-11a
3 of 27 shown
Upland Cotton’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 Upland Cotton
Growing guides for upland cotton
In rotation planning, upland cotton counts as a Other — beds recover best when other crops don’t follow each other in the same spot year over year. (Growable Ground derivation — crop-rotation group from botanical family)
Good to know
One caution for pet owners — upland cotton is toxic to dogs and cats (moderate severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: Cornell Poisonous Plants Database.)
Upland Cotton offers moderate value to bees and other pollinators.
Your land is one point inside Upland Cotton'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 Upland Cotton will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether upland cotton actually takes — we score it against the real 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.
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How we know this about Upland Cotton
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•USDA PHZM•ASPCA
Frequently asked questions
Can I grow Upland Cotton in my zone?
Upland Cotton grows in USDA hardiness zones 8 through 11 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Upland Cotton?
Most growers plant upland cotton after the last spring frost, once the soil has warmed, leaving enough of the season for its 150-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Upland Cotton need?
Upland Cotton needs full sun — a spot that catches at least 6 hours of direct summer sun a day. 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 Upland Cotton need?
Upland Cotton prefers soil pH 5 to 9.5, on well-drained ground (FAO ECOCROP). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Upland Cotton attract pollinators?
Yes — upland cotton's flowers are a solid nectar source for honeybees and native bees.
Is Upland Cotton safe for pets?
Upland Cotton is toxic to pets (dogs,cats) with moderate severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: Cornell Poisonous Plants Database.)