Growing Potatoes in Containers
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GardenSays
Potato plants grow well in containers โ use at least a 10-gallon pot with drainage holes.
- Minimum size
- 10 gal
- Per plant
- 1 per pot
- Drainage
- Required
Potato plants are container-suitable. The verified minimum is a 10-gallon pot per plant, about 16 in deep; bigger pots dry out slower and are more forgiving.
- Container plants dry out far faster than the ground โ check daily in summer and water when the top inch is dry. We don't publish a fixed gallons-per-day figure: pot size, material, mix and weather all change it.
- The pot MUST have drainage holes โ standing water rots roots faster than drought hurts them.
Calculated result ยท 1 verified source ยท Checked 2026-07-18 ยท How we decide
Why
Use a 10-15 gallon container or grow bag at least 16 inches deep so you can hill soil up the stems as they grow; bigger pots yield more.
- The 10-gallon minimum gives roots enough volume to support the plant and buffers moisture between waterings.
- Use a 10-15 gallon container or grow bag at least 16 inches deep so you can hill soil up the stems as they grow; bigger pots yield more.
When this doesn't apply
- A too-small pot means constant watering, stunted plants and poor yield โ err larger.
How this was calculated
- 1. Your pot's volume8 galCalculated result
Deterministic geometry โ ฯ ร (14/2)ยฒ ร 12 in = 1847.3 cu in รท 231
- 2. Minimum for potato plants10 galSource guidance
Potato plants need at least 10-gallon pots (extension container guidance)
- 3. Minimum depth16 inSource guidance
Potato plants are shallow-rooted โ about 16 in of soil depth is enough
Data sources
- University of New Hampshire Extension โ Growing potatoes in containers โ An ideal potato container has a 10-15 gallon capacity and is 16-20 inches deep, with room to add soil (hill) as plants grow; ~3-4 seed pieces per 15-gallon container. (checked 2026-07-18)
What changes this answer
Container shape
Pot diameter (in)
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Pot depth (soil) (in)
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