Free garden calculator
Container Size Finder
Match a selected crop and plant count to minimum and recommended volume, useful depth, and support requirements.
For 2 Cherry tomato10.0–20.0 gal- Minimum depth
- 14 inches
- Support
- required
- Difficulty
- 2 / 5
Total volume is not the only constraint: depth, drainage, water, weight, and plant spacing still matter.
See crop assumptions →How it works
The method
Gardiv multiplies reviewed per-plant volume guidance by count and exposes the crop’s minimum depth and trellis rule.
Worked example
A single slicing tomato needs a substantially larger container than a single lettuce plant; sizing by diameter alone can be misleading.
Remember: Garden outputs are planning ranges. Weather, cultivar, soil, pests, sunlight, and care can materially change the result.
Read Gardiv’s full calculation methodology →
Common questions
Before you act on the number
Can several plants share a container?
Yes, when total volume, depth, spacing, water, and fertility remain adequate.
Is garden soil suitable?
Usually not by itself. Containers need a mix with reliable drainage and aeration.
Does a bigger container help?
It often buffers moisture and root temperature, but it also becomes heavier and costs more to fill.
