Tools

Free Gardening Calculators & Tools

Science-backed tools to help you plan spacings, find frost dates, check chill hours, and choose companion plants — without the guesswork.

Plant Spacing Calculator

Calculate spacing for pots, containers & raised beds

Check if fruit trees will grow in your zip code

Find your last spring & first autumn frost dates

Check which plants grow well together

Plan sowing, transplanting & harvest dates

Find compatible pollination partners for fruit trees

Leaftide App

Leaftide combines visual plot design, climate-aware sowing schedules, companion planting checks, and fruit tree tracking in one interactive app.