Tools

Free tools for container growers.

No signup. Run a calculator, get a clear answer, and plant with less guesswork.

Layout

Plant spacing calculator

See how many plants fit in a round, square, or rectangular container — with a visual grid and a rim margin.

Mix

Turn pot dimensions into dry quarts, liters, and the number of potting-mix bags to buy.

Timing

Set your last spring frost and get indoor start dates and outdoor windows for common container crops.