Repotting Guide · Mid Fall
October is wind-down month. Roots are slowing, light is fading, and for most of the country the repotting season is closing. The work now is about protection and preparation — settling plants for dormancy, bringing the tender ones inside, and resisting the temptation to disturb roots that will not have time to recover.
What to repot in OctoberAcross all four families we grow for — timing depends on watching your plant, not just the date.
Outdoor & Temperate Bonsai
Repotting is over in cold and temperate zones — hardy trees are heading into dormancy and need their roots intact for winter. Shift to cleanup: remove fallen leaves, treat for pests, and prepare winter protection. Cold-hardy species like Sempervivum and many junipers are unfazed by the coming chill.
Tropicals & Tropical Bonsai
Bring every tropical indoors before the first frost if you have not already. Stop repotting now — the drop in light means fresh roots will not establish, so act only in a genuine emergency and give the plant the brightest spot you have.
Cacti
Begin the dry-down. Reduce watering as cacti enter their winter rest, keep them bright and cool, and do not repot — they want stillness now, not fresh soil.
Succulents
Most are slowing. Protect tender types from early cold snaps and ease back on water. Cold-hardy Sempervivum and many Sedum can stay outside and will color up beautifully in the chill.
Timing by USDA zone
Spring runs later as you go colder and earlier as you go warmer — shift the calendar to match your climate.
Season closed — focus on winter protection and moving tender plants in.
Final cleanup; stop repotting and reduce watering.
A little tender-plant repotting may still be possible early month, but wind down soon.
🌱 Tip of the month
Ease off the water as light fades. Plants heading into rest use far less, and dialing back now prevents the cool, wet soil that causes most winter root rot.
✨ Fun fact
Hens-and-chicks (Sempervivum) shrug off snow and ice — these alpine survivors can sit under a blanket of snow and emerge in spring perfectly fine.
Soil for this month
Everything above drains fast and breathes — exactly what these plants want at repotting time.
A note on timing: plants don't read calendars. Use these months as a guide, but let the plant make the final call — repot deciduous trees as buds crack, conifers as new growth softens, and tender plants only while they're in active growth. Always step up just one pot size and match the mix to the plant.