Hibiscus is grown for its foliage and the structure it brings to a planting. It's hardy across USDA zones 10 through 12 and shrugs off deer. Its spring flowers are a moderate draw for honeybees, native bees, butterflies, and hummingbirds. It roots deep, which helps it reach moisture in a dry spell and open up tight soil as it establishes.
Zones
10-12
pH Range
4.3-8.2
Sun
Full Sun
Days to Maturity
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Score Hibiscus on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether hibiscus actually takes — and those shift from one yard to the next. Enter your address and we'll score hibiscus against your land's real conditions.
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What Hibiscus is
Hibiscus grows as a perennial and reaches around five feet at maturity. It blooms red in spring. It's also deer-resistant.
How to grow Hibiscus
Hibiscus grows in USDA zones 10 through 12. Hibiscus does best in full sun — at least 6 hours of direct sun a day — and soil from pH 4.3 to 8.2, on well-drained ground. It needs a growing season of at least 100 frost-free days and about 0 hours of winter chill, which is why climate matters as much as soil.
USDA Zones
10-12
USDA PHZM 2023
Soil pH
4.3 - 8.2
USDA PLANTS Database
Sun
Full Sun
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
Frost Tolerance
50°F
plant_species_v5.csv
Mature Height
5 ft
plant_species_v5.csv
Chill Hours
0+
plant_species_v5.csv
Frost-Free Days
100+
plant_species_v5.csv
Start the season right
Plant hibiscus in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Hibiscus prefers pH 4.3 to 8.2 (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.
Keep it in good form
Prune hibiscus to shape as it grows; the reward is its foliage and structure, not a harvest, so steady upkeep is the whole job.
Good to know
Good news for pet owners — hibiscus isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Hibiscus offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Hibiscus thrives
Hibiscus is hardy across USDA zones 10 through 12. 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 10–12·Where Hibiscus growsOpen map →
On USDA hardiness-zone overlap, Hibiscus can grow in these states:
See if Hibiscus will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether hibiscus 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 Hibiscus in my zone?
Hibiscus grows in USDA hardiness zones 10 through 12 (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 Hibiscus?
Most growers plant hibiscus after the last spring frost, once the soil has warmed, leaving enough of the season for its 100-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 Hibiscus need?
Hibiscus 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 Hibiscus need?
Hibiscus prefers soil pH 4.3 to 8.2, on well-drained ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Hibiscus attract pollinators?
Yes — hibiscus's flowers are a solid nectar source for honeybees, native bees, butterflies, and hummingbirds (Xerces Society, Pollinator Partnership).
Is Hibiscus safe for pets?
Hibiscus is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.