Garden calculators & tools

Personalised sow, transplant and harvest dates for 50+ crops.

Lay out raised beds by the square with companion & rotation checks.

Count back from your last frost to every indoor sowing date.

Last frost, first frost and frost-free days for your ZIP or state.

How many plants fit your bed — rows, square-foot grid, or offset.

Cubic feet, cubic yards and bag counts to fill any bed.

Volume and bags to mulch a bed or border to the right depth.

How much compost to top-dress your beds each season.

Pounds of seed for a new lawn or overseeding, by grass type.

How much fertilizer to apply, from the nitrogen rate and N-P-K.

A dated list of repeat sowings for a continuous harvest.

What to plant near each crop, and what to keep apart.

Estimate winter chill and see which fruit trees will crop for you.

Is that apple, pear or cherry self-fertile, or does it need a partner?