All Species > Pieris japonica 'Red Mill'

Japanese Andromeda

Broadleaf evergreen shrub with ornamental flowers; slow growing; good for flowering bonsai.

Seasonal Care Guide

Placement & Seasonal Notes

  • Placement: Partial shade
  • Notes: Prefers filtered light; avoid harsh afternoon sun.
  • Winter: Mulch roots and protect from drying winds.
  • Summer: Provide humidity; avoid letting root ball dry out.

Leaf Traits

  • Persistence: Evergreen
  • Form: Broadleaf

Watering & Fertilization

  • Watering: Moderate to high
  • Notes: Moisture-retentive soil preferred; do not allow to dry out.
  • Season: Spring → Autumn
  • Fertilization: Balanced
  • Notes: Use acid-loving fertilizer during flowering season.

Training Techniques

  • Wiring: Spring or Autumn
  • Notes: Train via clip-and-grow to protect foliage clusters.
  • Pruning: Structural in spring, maintenance in summer
  • Notes: Deadhead flowers and prune leggy growth post-bloom.
  • Repotting: Every 2-4 years
  • Notes: Use acidic soil mix; repot early spring before bloom.

Propagation

  • Method: Cuttings or seed
  • Notes: Cuttings take well in early summer; mist environment helps.

Zone 8b Considerations

Avoid repotting in wet winter