The illustrated growing guide

Caladium

Caladium bicolor

Family Araceae

Est. zones 9-11

Botanical illustration of Caladium
Bulb · Caladium bicolor

Heart-shaped leaves splashed like watercolor — the flower of the shade garden that isn't a flower. Plant tubers when soil is warm (they sulk in cold), enjoy the neon foliage all summer, lift before frost. Instant tropical color for dark corners.

BulbPart Shade to ShadeModerate waterFast in heat growthDeer-resistant

Where to buy the plant — 1 nursery

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Overview

Will caladium suit your garden, and what goes wrong.

Will it thrive where you are?

Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what caladium actually needs.

Life cyclePerennial zones 9–11, annual elsewhere

Caladium at a glance

Life cyclePerennial zones 9–11, annual elsewhere
Mature size1-2.5 ft
PollinationN/A (grown for leaves)
Chill requirementNot yet established
Bloom seasonInsignificant
Harvest seasonNot yet established
Growth rateFast in heat

Common caladium problems

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Growing

Light, water, soil, propagation and the season’s jobs.

How to grow caladium: light, water & soil

LightPart Shade to Shade (sun-types exist)
WaterModerate — evenly moist in growth
SoilRich, humusy · pH 5.5 - 6.5
FertilizerMonthly in season
PruningFrost/dormancy → lift tubers, store dry at 60°F+ (they rot below 55°F) — Remove tired leaves; that's it.
Spacing8-12 in

How to plant & propagate caladium

PropagateOffsets, division, or bulbils

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The year

What caladium asks for, month by month.

The caladium year, month by month

No fixed season calendar for caladium — its care follows conditions, not the calendar.

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Ecology & uses

What it does for the garden, and what it is grown for.

Caladium in the garden system

  • Herbaceous layer bulb
HabitatWoodland
MoistureFacultative / average
DeerResistant — a safer unfenced choice
OriginIntroduced

What caladium is grown for

⚠ Toxic if eatenToxic to cats/dogs and kids (calcium oxalate)

UseShade color
UseContainers
UseTropical bedding

Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.

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Cultivars

Named varieties of caladium, ruled as a catalogue.

Best caladium varieties & cultivars

'White Christmas'; 'Red Flash'; 'Miss Muffet'; sun-tolerant 'Florida' series

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Sources & plant ID

Where the care distinctions come from, and how the plant is filed.

Research basis

Sources behind this profile

No extension citations are attached to caladiumyet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialCaladium bicolor
FamilyAraceae
TypeBulb · Tender Perennial
USDA symbolCABI11
OriginIntroduced
Invasive riskLow

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Where to buy

Third-party nurseries — not Story Thyme Farms.

Third-party nurseries, not Story Thyme Farms. Prices are theirs.

Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.

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Questions

Caladium questions, answered straight.

Do deer eat caladium?

Rarely — caladium is considered deer-resistant, which makes it one of the safer unfenced choices in deer country. Hungry deer in a hard winter test every rule, but it's a low-risk pick.

Is caladium safe for kids and pets?

No — treat it as toxic if eaten. Toxic to cats/dogs and kids (calcium oxalate) Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.

How do you propagate caladium?

Offsets, division, or bulbils.

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Elsewhere

Where caladium sits in the library.

Where caladium sits in the library

Grows in the same world