# Up-potting

> Up-potting moves a plant into progressively larger containers as its roots fill each one, instead of starting in the final pot.

- Canonical: https://genetixbay.com/knowledge/glossary/up-potting.html
- Also written: uppotting, potting up, pot up, step-up potting
- Glossary category: Cultivation and training · Evidence: Grower practice
- Status: Draft: awaiting expert review · Updated: 2026-10-31
- Licence: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/), attribute "GenetixBay cannabis glossary"

Up-potting is the practice of moving a plant through a series of larger containers, for example a 0.5 L cup, then a 3-4 L pot, then a 15-25 L final pot, as roots fill each one. The idea is that a small root system in a small volume of medium wets and dries quickly, which keeps roots oxygenated and reduces the [overwatering](https://genetixbay.com/knowledge/glossary/overwatering.md) risk of a [seedling](https://genetixbay.com/knowledge/glossary/seedling.md) in a huge, cold, wet pot.

## In practice

Up-pot when white roots reach the wall and the root ball lifts out intact, but before roots circle densely. Each move should go to roughly two to four times the volume. Many growers skip the middle step and go cup to final.

The alternative is planting straight into the final pot and watering only a small circle around the stem at first; that works well and avoids handling. For [autoflowers](https://genetixbay.com/knowledge/glossary/autoflower.md) GenetixBay recommends the final pot from day one.

## Don't confuse with

- **Transplanting**: the general term; up-potting is a [transplant](https://genetixbay.com/knowledge/glossary/transplanting.md) into a bigger pot.
- **Root pruning**: deliberately cutting roots to keep a plant (often a mother) in the same pot.

## Related terms

[Transplanting](https://genetixbay.com/knowledge/glossary/transplanting.md), [Root-bound](https://genetixbay.com/knowledge/glossary/root-bound.md), [Pot size](https://genetixbay.com/knowledge/glossary/pot-size.md)

## Read more

- [Transplanting: when, into what, and avoiding transplant shock](https://genetixbay.com/knowledge/germination/transplanting.md)

## Sources

1. Poorter H, Bühler J, van Dusschoten D, Climent J, Postma JA. 2012. Pot size matters: a meta-analysis of the effects of rooting volume on plant growth. Functional Plant Biology 39(11):839-850. https://doi.org/10.1071/FP12049