Dieffenbachia is grown for its foliage and the structure it brings to a planting. It's hardy across USDA zones 10 through 12, shrugs off deer and grows just as well in a container as in the ground.
Zones
10-12
pH Range
5.5-7
Sun
Part Sun
Days to Maturity
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Score Dieffenbachia on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether dieffenbachia actually takes — and those shift from one yard to the next. Enter your address and we'll score dieffenbachia against your land's real conditions.
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What Dieffenbachia is
Dieffenbachia grows as a perennial and reaches around five feet at maturity. It's also deer-resistant and well suited to containers.
How to grow Dieffenbachia
Dieffenbachia grows in USDA zones 10 through 12. Dieffenbachia does best in part sun — at least 4 hours of direct sun a day — and soil from pH 5.5 to 7, on well-drained ground.
USDA Zones
10-12
USDA PHZM 2023
Soil pH
5.5 - 7
USDA PLANTS Database
Sun
Part Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Mature Height
5 ft
Growable Ground plant catalog
Start the season right
Plant dieffenbachia in part sun with at least 4 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Dieffenbachia prefers pH 5.5 to 7 (Growable Ground Plant 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 dieffenbachia 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
One caution for pet owners — dieffenbachia is toxic to dogs and cats (severe severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)
Dieffenbachia isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.
Where Dieffenbachia thrives
Dieffenbachia 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 Dieffenbachia growsOpen map →
On USDA hardiness-zone overlap, Dieffenbachia can grow in these states:
See if Dieffenbachia will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether dieffenbachia 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 Dieffenbachia in my zone?
Dieffenbachia 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 Dieffenbachia?
Most growers plant dieffenbachia 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 Dieffenbachia need?
Dieffenbachia 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 Dieffenbachia need?
Dieffenbachia prefers soil pH 5.5 to 7, on well-drained ground (Growable Ground Plant Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Dieffenbachia attract pollinators?
Dieffenbachia isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.
Is Dieffenbachia safe for pets?
Dieffenbachia is toxic to pets (dogs,cats) with severe severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)