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How to Choose Pot Size

A small pot won't be fixed with more watering. Volume and drainage table.

1 min read

The number one mistake in terrace gardening is using a 5 L pot for a tomato. The plant will transpire more than the root ball can absorb, even if you water three times a day.

Minimum Volumes

Indeterminate tomato: 25 L. Pepper and eggplant: 18-25 L. Cucumber: 25 L. Lettuce and basil: 5-7 L. Strawberry: 5-11 L or planter. Drought-resistant herbs: 7-11 L with good drainage. Young Monstera: 11-18 L.

Shape and Material

Light plastic indoors; outdoors, dark colors heat the root ball in August (sometimes too much). Prefer wide mouths over narrow vases: lateral roots explore. Real holes, not a factory micro-hole.

Pot Transfer

Increase size when the root ball comes out with white roots through the holes, not “just in case” to a 50 L pot that stays cold and damp. A jump from 7 to 14 L or from 14 to 25 L is reasonable.

What We Recommend at Control Garden

Plastic pots from 3 L to 25 L in packs. Combine sizes: not all plants on a balcony need a 25 L bucket.

Recommended products

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FAQs

Always a saucer?
Indoors yes, for the floor. Empty the saucer after 15 minutes. Outdoors, better without a saucer if it rains.
A long planter or several pots?
Planter for lettuce and strawberries. Individual pot for tomato: they compete less and isolate diseases.
Is a transparent pot worth it?
For cuttings and root control yes. In direct sunlight, algae and heat: better opaque.

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