Determine Repotting Window by Species
30 minutesRepot deciduous before bud break; conifers during candle extension; tropicals in warm months.
Field context
This workflow is part of 3 niche fields
Complete guide for bonsai repotting season — step-by-step workflow, tools, checklist, and expert tips to get started.
Repot deciduous before bud break; conifers during candle extension; tropicals in warm months.
Mix fresh substrate; select next pot size if upgrading; sharpen root scissors and wire.
Cut ⅓ root mass; remove circling roots; create flat pad on bottom for pot contact.
Position tree, fill soil with chopstick tamping, water until runoff clear; shade 2–4 weeks.
Determine whether tree is due for repotting based on species, age, and last repot date.
Prepare fresh substrate mix at correct ratio for the species being repotted.
Decide whether to upsize pot or return to same container after root pruning.
Adjust watering frequency during post-repot recovery period.
Typical years between repotting.
| Species Type | Young Tree | Mature Tree | Best Season |
|---|---|---|---|
| Deciduous | 2 years | 3–5 years | Early spring |
| Conifer | 3 years | 5–7 years | Spring candles |
| Tropical | 1–2 years | 2–3 years | Warm months |
| Collected yamadori | 3–5 years | 5–10 years | After recovery |
Repot entire collection in one season window — setup time is the biggest efficiency loss.
Soil is properly tamped when chopstick meets resistance throughout — not just at surface.
Dip root scissors in alcohol between trees to prevent pathogen spread.