Roselle is grown for the harvest, ready about 150 days after sowing. It's hardy across USDA zones 8 through 11 and stands up to deer. Its flowers are a moderate draw for honeybees and native bees, even though the harvest is the prize. It roots deep, which helps it reach moisture in a dry spell and open up tight soil as it establishes.
Zones
8-11
pH Range
4.5-8.5
Sun
Part Sun
Days to Maturity
150
Score Roselle on your exact land.
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What Roselle is
Roselle reaches around six feet at maturity. It's also deer-resistant.
How to grow Roselle
Roselle grows in USDA zones 8 through 11 and is ready to harvest about 150 days after planting. Roselle does best in part sun — at least 4 hours of direct sun a day — and soil from pH 4.5 to 8.5, on well-drained ground. It needs around 3,000 growing degree days to mature, which is why climate matters as much as soil.
USDA Zones
8-11
USDA PHZM 2023
Soil pH
4.5 - 8.5
USDA PLANTS Database
Sun
Part Sun
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
Frost Tolerance
50°F
plant_species_v5.csv
Days to Maturity
150 days
plant_species_v5.csv
GDD Required
3000+
plant_species_v5.csv
Mature Height
6 ft
plant_species_v5.csv
Frost-Free Days
0+
plant_species_v5.csv
Start the season right
Plant roselle in part sun with at least 4 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Roselle prefers pH 4.5 to 8.5 (USDA PLANTS Database). 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.
Harvest at maturity
Roselle is ready about 150 days after sowing (University Extension production guides). Watch for cultivar-specific ripeness cues and pick at peak.
Good to know
Good news for pet owners — roselle isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Roselle offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Roselle thrives
Roselle 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.
Zones 8–11·Where Roselle growsOpen map →
On USDA hardiness-zone overlap, Roselle can grow in these states:
See if Roselle will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether roselle actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
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Frequently Asked Questions
Can I grow Roselle in my zone?
Roselle 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.
How long does Roselle take to grow?
Roselle is ready to harvest about 150 days after planting (University Extension production guides). Your local frost dates and soil temperature move that window earlier or later.
When should you plant Roselle?
Most growers plant roselle 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 Roselle need?
Roselle does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does Roselle need?
Roselle prefers soil pH 4.5 to 8.5, on well-drained ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Roselle attract pollinators?
Yes — roselle's flowers are a solid nectar source for honeybees and native bees (Xerces Society, Pollinator Partnership).
Is Roselle safe for pets?
Roselle is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.