Find your USDA zone, plan companion plantings, calculate seed quantities, and schedule your garden — all for free. No signup, no guesswork.
USDA zone finder, frost dates, planting calendars, and growing season calculators.
Companion planting guides, Three Sisters planner, crop rotation, and plant spacing.
Garden size, soil volume, yield estimates, water needs, and sunlight guides.
Fertilizer ratios, pH amendments, lawn area, irrigation timers, and budget planners.
Find your USDA plant hardiness zone by entering your ZIP code. Knowing your zone helps you choose plants that will thrive in your climate.
Estimate your average last spring frost and first fall frost dates based on your USDA hardiness zone.
Find out when to start seeds indoors, transplant, and direct sow your favorite vegetables based on your USDA zone.
Look up which plants grow well together and which ones should be kept apart. Good companions can improve growth, flavor, and pest resistance.
Calculate how many plants fit in your garden bed based on plant spacing requirements. Includes a square foot gardening option.
Calculate how much rainwater you can collect from your roof and how many barrels you need to water your garden.
Calculate grow light wattage, daily light integral (DLI), hanging height, photoperiod hours, and electricity cost for indoor growing.
Calculate expected harvest dates, harvest window duration, and succession planting dates based on plant type, planting date, and USDA zone.
Identify likely garden pests or diseases based on damage symptoms, affected plant part, and season, with organic treatment options.
Figure out how big your garden should be based on your household size and growing goals.
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