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.
Figure out how big your garden should be based on your household size and growing goals.
Find out exactly how much water your garden needs each week and how long to run your hose or sprinkler.
Understand NPK ratios and calculate exactly how much fertilizer to apply to your lawn or garden.
Calculate the area of your lawn for any shape and find out how much seed, sod, or fertilizer you need.