Tools
Garden calculators, checklists and a choosing guide
Everything here works on the page with no sign-up. The calculators run on your device and nothing you type is sent anywhere. You supply your own frost date and pot sizes, because no tool can know your local conditions. The checklists save your ticks in your browser and print cleanly.
Calculators
Planting Date Helper: Vegetable Windows From Your Last Frost DateType in your own average last spring frost date to see when to start seeds indoors and set out common vegetables, using extension-service week offsets.
Container Size and Watering Planner: Pot Volume, Mix and Check RhythmEnter your pot's size to get its volume in gallons, whether it meets extension minimums for your plant, how much mix to buy and how often to check it.
Printable checklists
Soil Drainage Test Checklist and Rate Calculator (Printable)Run a 12-inch percolation test step by step, tick each stage, then enter the water drop and time to see whether your soil drains slowly, well or too fast.
Garden Season Checklist: Planting Tasks by Frost Date (Printable)A tickable, printable vegetable-garden checklist counted from your last spring and first fall frost: prepare beds, sow, harden off, protect and clear up.