Keep the source’s precision
Months remain months. Half-months remain half-months. “Early July” doesn’t become a made-up July deadline.
Right place. Real context.Every garden
Every garden
has a local rhythm.
Frost dates tell part of the story. Regional Extension guides add the growing-season context. Explore the source-backed references we can support, with their geographic limits kept in view.
01 / MOUNTAIN WEST
Colorado State UniversityColorado
A spring reference built around the average last frost. See which crops belong before, around, or after that milestone.
30 crop referencesExplore timing
02 / CENTRAL NORTH CAROLINA
NC State ExtensionCentral North Carolina
Read a year of planting windows in half-month steps, with direct sowing, transplants, bulbs, and tubers kept separate.
48 source crop rowsOpen calendar
03 / THREE FLORIDA REGIONS
UF/IFAS ExtensionFlorida
North, Central, and South Florida have their own seasonal windows. Choose the source-defined region for your garden.
39 source crop rowsChoose a region
A useful starting pointLocal guidance.
Local guidance.
Honest boundaries.
These are reference calendars from university Extension sources. They do not make a crop recommendation for every U.S. location.
Select the region yourself
A ZIP code, nearby station, or hardiness zone doesn’t prove that a regional calendar applies to your garden.
Check the garden before planting
Pair the reference with current weather, soil conditions, cultivar instructions, and local Extension advice.