Callaloo is an annual grown for its leaves, ready to start cutting about 45 days after sowing. It's hardy across USDA zones 2 through 11. Once it comes in, a single planting keeps producing for six weeks or so, so you harvest over time rather than all at once.
Zones
2-11
pH Range
4.3-7.5
Sun
Full Sun
Days to Maturity
45
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What Callaloo is
Callaloo grows as an annual and reaches around three feet at maturity.
How to grow Callaloo
Callaloo grows in USDA zones 2 through 11 and is ready to harvest about 45 days after planting. Callaloo does best in full sun — at least 6 hours of direct sun a day — and soil from pH 4.3 to 7.5, on well-drained ground. It needs around 1,000 growing degree days to mature and a growing season of at least 30 frost-free days, which is why climate matters as much as soil.
USDA Zones
2-11
USDA PHZM 2023
Soil pH
4.3 - 7.5
USDA PLANTS Database
Sun
Full Sun
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
Frost Tolerance
50°F
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Days to Maturity
45 days
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GDD Required
1000+
plant_species_v5.csv
Mature Height
3 ft
plant_species_v5.csv
Frost-Free Days
30+
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Start the season right
Plant callaloo in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Callaloo prefers pH 4.3 to 7.5 (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
Callaloo is ready about 45 days after sowing (University Extension production guides). Cut the outer leaves as you need them — frequent harvest keeps new growth coming.
Good to know
Good news for pet owners — callaloo isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Callaloo isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.
Where Callaloo thrives
On hardiness alone, callaloo grows across most of the country — its range (USDA zones 2 through 11) is unusually wide. 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 2–11·Where Callaloo growsOpen map →
Continental US shown — Alaska and US Pacific territories sit outside the federal map's polygon dataset.
On USDA hardiness-zone overlap, Callaloo can grow in these states:
See if Callaloo will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether callaloo 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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Frequently Asked Questions
Can I grow Callaloo in my zone?
Callaloo grows in USDA hardiness zones 2 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 Callaloo take to grow?
Callaloo is ready to harvest about 45 days after planting (University Extension production guides). Your local frost dates and soil temperature move that window earlier or later.
When should you plant Callaloo?
Most growers plant callaloo after the last spring frost, once the soil has warmed, leaving enough of the season for its 30-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 Callaloo need?
Callaloo 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 Callaloo need?
Callaloo prefers soil pH 4.3 to 7.5, on well-drained ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Callaloo attract pollinators?
Callaloo isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.
Is Callaloo safe for pets?
Callaloo is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.