Leucaena is a tree, a long-term addition to the landscape. It's hardy across USDA zones 10 through 12 and shrugs off dry spells. Its indeterminate flowers are a moderate draw for honeybees and native bees. A nitrogen-fixer, it draws nitrogen from the air and feeds it back to the soil — turn it under or leave the roots in place, and the next planting inherits a richer bed.
Leucaena — the short answer
Leucaena: grown in zones 10–12, full sun, pH 5–8.5.
- USDA zones
- 10–12
- Hardy to zone 9b — USDA PLANTS Database (25 °F, converted). The source rates it slightly hardier than our range.
- Soil pH
- 5–8.5
- FAO ECOCROP; USDA NRCS PLANTS Database
- Sun
- Full Sun
- Converted from 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 Leucaena on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether leucaena actually takes — and those shift from one yard to the next. Enter your address and we'll score leucaena against your land's real conditions.
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What Leucaena is
Leucaena grows as a perennial and reaches around 20 feet at maturity. It blooms white in indeterminate.
How to grow Leucaena
Leucaena grows in USDA zones 10 through 12. Leucaena does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 8.5, on well-drained ground.
USDA Zones
10-12
Hardy to zone 9b: USDA PLANTS Database lists 25 °F, converted to zone 9b, checked Oct 2026. The source rates it slightly hardier than our range. Ceiling: our plant database.
Soil pH
5 - 8.5
FAO ECOCROP; USDA NRCS PLANTS Database
Sun
Full Sun
Converted from FAO ECOCROP
Drainage
well (dry spells)
FAO ECOCROP
Minimum Growing Temperature
50°F
Below this it stops growing rather than dies — a pace limit, not a survival limit.
FAO ECOCROP
Mature Height
20 ft
USDA NRCS PLANTS Database
Plant it right
Set leucaena in full sun with well-drained soil.
Match the soil
Leucaena prefers pH 5 to 8.5 (FAO ECOCROP; USDA NRCS PLANTS Database). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band. It fixes its own nitrogen, so skip the high-nitrogen feed and instead dust the seed with a matching rhizobium inoculant at sowing.
Water while it roots in
Water deeply while leucaena establishes, letting the soil dry between soakings; once its roots are in, it rides out dry spells on its own.
Shape it while it is young
Prune leucaena only to remove dead, damaged or crossing branches while it is young; it is grown for its form, not a harvest, so little more is needed once it settles in.
Where Leucaena thrives
Leucaena 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.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 10–12 spans average winter lows from 30°F to 60°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 10–12·Where Leucaena 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 Leucaena stands, state by state
Leucaena is rated for zones 10–12 — 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
Leucaena’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 Leucaena
Growing guides for leucaena
In rotation planning, leucaena counts as a Legume — beds recover best when legume 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 — leucaena is toxic to dogs, cats and horses (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.)
Leucaena offers moderate value to bees and other pollinators. We haven't confirmed this against a published source yet.
Your land is one point inside Leucaena'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 Leucaena will thrive on your land
Zone averages are a start. Your soil pH, drainage, sun exposure, and frost dates shape whether leucaena 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.
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How we know this about Leucaena
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 Leucaena in my zone?
Leucaena grows in USDA hardiness zones 10 through 12 (Hardy to zone 9b: USDA PLANTS Database lists 25 °F, converted to zone 9b, checked Oct 2026. The source rates it slightly hardier than our range. Ceiling: our plant database.). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Leucaena?
Set leucaena out in early spring or fall while it's dormant, so the roots establish before the heat of summer. Your local last-frost date — which a Growable Ground report pulls for your exact address — sets the precise window.
How much sun does Leucaena need?
Leucaena 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 Leucaena need?
Leucaena prefers soil pH 5 to 8.5, on well-drained ground (FAO ECOCROP; USDA NRCS PLANTS Database). Your report scores your parcel's mapped soil against that using USDA SSURGO data.
Does Leucaena attract pollinators?
Yes — leucaena's flowers are a solid nectar source for honeybees and native bees. We haven't confirmed this against a published source yet.
Is Leucaena safe for pets?
Leucaena is toxic to dogs, cats and horses 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.)