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Back to the Cork Bark Elm guide
BonsaiList · Field care cardzones 5–9

Cork Bark Elm Bonsai

Ulmus parvifolia 'Corticosa'

Light
Full sun to partial shade
Water
Moderate
Soil
Well-draining general mix
Temperature
Hardy to -20°F
Feeding
Every 2 weeks, spring through August
Repotting
Every 2-3 years
The year at a glance
JFMAMJJASONDFeedPrune

prune: spring through fall

Check the soil before you water — every time.bonsailist.com/species/cork-bark-elm

Tape it to the shelf the tree sits on. Update it when the seasons change — the full guide has the why behind every line.