Transplant a cannabis clone once white roots circle the edge of its current container, usually 1 to 2 weeks after it roots. Water the clone lightly a day before, prepare a pre-moistened pot one or two sizes up, ease the root ball out without tearing it, set it at the same depth, and water in gently. Handle roots as little as possible.
When a clone is ready to move
The signal to transplant is roots, not calendar days. A freshly rooted clone in a small cup or plug is ready when you see healthy white roots reaching the outside of the medium or peeking from the drainage holes. If the top growth has stalled and the plant dries out fast, it is likely root-bound and overdue. Move too early, before roots hold the medium together, and the plug falls apart in your hands, shocking the plant.
We usually pot up clones one to two weeks after rooting, then again as they fill each container. Going up one or two pot sizes at a time beats jumping straight into a huge container, which stays wet and invites overwatering, covered in our overwatered clones guide.
Prep before you dig
Water the clone lightly the day before so the root ball holds together but is not soggy. Pre-moisten the new medium too, because dry soil wicks water away from young roots and can leave dry pockets. Have your new pot partly filled so the root ball will sit at the same depth it was growing before. Work in a shaded, low-stress spot, out of blasting light and wind. Everything you need should be within reach so the roots spend as little time exposed to air as possible.
On medium choice, an airy, well-draining mix gives young roots the oxygen they want. Our best soil for cannabis clones guide covers mixes that drain well without drying out too fast.
The transplant, step by step
- Squeeze or flex the old container to loosen the root ball from the sides.
- Spread your fingers over the top of the medium, invert, and let the plant slide into your hand. Do not yank the stem.
- Look at the roots. If they are circling tightly, gently tease the bottom ones outward so they grow into new medium instead of choking.
- Set the root ball into the prepared hole at the same depth it grew before, then backfill and lightly firm the soil.
- Water in slowly until you get a little runoff, which settles the medium around the roots and removes air gaps.
Keep light gentle for a day or two afterward and hold off on heavy feeding. Transplanted clones like a calm recovery window.
Pot sizing and timing
| Stage | Typical container | Move when |
|---|---|---|
| Freshly rooted clone | Solo cup or 4 inch pot | White roots reach the edge |
| Early veg | 1 gallon | Roots fill the cup, growth speeds up |
| Late veg | 3 to 5 gallon | Roots fill the gallon pot |
| Final / flower | 5 to 10 gallon | Before flipping to 12/12 |
Try to finish your last up-pot before you flip to flower. Transplanting mid-stretch is doable but adds stress right when the plant is redirecting energy into bud sites. Fabric pots make each move easier and keep roots healthier between transplants, which we compare in fabric pots versus plastic pots.
Avoiding transplant shock
Shock shows up as droopy, sad leaves for a day or two after the move. Some is normal. You minimize it by keeping roots intact, transplanting into pre-moistened medium, matching planting depth, and easing off intense light briefly. Do not fertilize heavily right away; let the plant settle first. If a clone wilts hard, resist the urge to drown it, since the fix is usually gentle care and time, not more water.
Frequently asked questions
How do I know my clone is root-bound?
Root-bound clones show roots circling the outside of the medium or spilling from drainage holes, dry out much faster than before, and often stall in growth. If you slide out the root ball and see a dense white web wrapping the shape of the pot, it is time to move up a size before the plant chokes itself.
Should I water before or after transplanting?
Both, lightly. Water the clone a day before so the root ball holds together, and pre-moisten the new medium. Then water in gently right after transplanting to settle soil around the roots and close air gaps. Avoid soaking a freshly moved clone, since young roots in a big wet pot are easy to drown.
Can I transplant a clone that just rooted?
Wait until roots are established enough to hold the plug together, usually one to two weeks after roots first appear. Moving a barely-rooted clone risks the medium crumbling and tearing tender roots. Let it build a firm root ball first, then pot up into a container only one or two sizes larger.
Why did my clone droop after transplanting?
Mild droop for a day or two is normal transplant shock as roots re-establish. Keep light gentle, hold off heavy feeding, and keep the medium moist but not soggy. It should perk up on its own. If it worsens over several days, check for overwatering or root damage from rough handling.
Right after transplanting, hardening off the clone helps it settle in without shock.
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