Judas tree

Cercis siliquastrum L.

Family: Fabaceae

Pet & Human Safety

People: Not researchedPets: Not on the ASPCA lists as we read them

Hazardous parts

Not yet checked.

Preparation

n/a

Hazard type

Not yet checked.

Hazard route

Not yet checked.

How complete this information is

We have not researched the safety of this plant yet.

Toxic to pets

No ASPCA entry found.

Dogs, cats and horses: no verdict. ASPCA species page not read. RHS lists no harm note; Diputacion de Cadiz says no published health effects. Treat as not confirmed safe.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones: RHS H5 per RHS (hardy in most of the UK even in severe winters, about -15 to -10 C); USDA 7-9 per INRAE Jardin Thuret sheet (France source)
Light: Full sun or part shade (RHS); full sun, light shade tolerated (INRAE).
Water needs: low
Mature size: height: 8-12 m at maturity (RHS); about 10 m (INRAE); 5-15 m (Diputacion de Cadiz); width: wider than 8 m (RHS); crown 10-12 m (Cadiz); timeToMaturity: 20-50 years (RHS)

Soil & Drainage

Pruning & Flush Rhythm

Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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