Folio № 2 of 36
Japanese Barberry
Berberis thunbergii
Deciduous shrub with vivid color and thorny structure; tolerant and fast-growing.

The year, as this species lives it
Thirteen phases. Touch any arc — the wheel remembers what each season asks.
Mid Summer · Jul 1 – Aug 10 · happening now
- Water consistently; avoid drought conditions.
- Reduce nitrogen; emphasize potassium and phosphorus.
- Minimal pruning; avoid stressing tree in heat.
- Check for fungal diseases; treat promptly.
- Protect from intense sun.
click another arc to travel the year →
The care sheet
The constants — what stays true in every season.
Full sun
Tolerates heat and drought once established.
Low to moderate
Drought tolerant but responds well to watering.
Balanced
Light feeding encourages tighter growth.
Structural in early spring, maintenance through summer
Prune to encourage inner growth; tolerate hard pruning.
Spring or Autumn
Watch thorns - protect hands and adjust wires carefully.
Every 2-3 years
Can handle aggressive root pruning.
Cuttings or seed
Layering or hardwood cuttings in late fall.
Can handle cold; root zone insulation preferred.
May defoliate in extreme drought but recovers.