Your ZIP code doesn't know your garden.
A garden at 2,600 feet has a different last frost date, a shorter growing season, and a different zone than one in the valley below — even with the same zip code. Find out what your garden actually is.
What's your actual growing zone?
Enter your zip code and elevation. We'll show you what your zip code says — and what your garden actually is.
Why your zip code gets it wrong.
The USDA hardiness zones most gardeners rely on are calculated from weather station data — averages for large geographic areas. But elevation changes everything.
For every 1,000 feet you climb, your average minimum temperature drops about 3.5°F. That's enough to push you into a colder zone, push back your last frost date by a week or more, and cut your growing season by 20 or 30 days.
Planting on the valley's schedule when you live at 2,000 feet means starting warm-season crops before your garden is ready for them. It means losing transplants to a frost the valley didn't get. It means wondering every year why the timing never quite feels right.
SproutMap uses your actual GPS coordinates and elevation to build a planting schedule for where you actually grow.
Your zone is just the start.
SproutMap uses your actual location to build a week-by-week planting calendar for your garden — what to start, what to direct sow, when to harvest. Free to start.
No spam. Just your garden.
Prefer to look around first? Visit the homepage.