Seasonal calendar · Berberis thunbergii
Japanese Barberry
The year for this species, phase by phase — what to watch and what to do as the season turns.
Filter by concern
Watering
Consistent deep watering in warmer weather.
Fertilization
Continue balanced feeding monthly.
Pruning
Light pruning to maintain shape.
Wiring
Adjust wires if necessary.
Pests Disease
Inspect for mites; treat with horticultural oils if found.
Summer Protection
Provide afternoon shade during extreme heat.
Development
Encourage canopy density.