What USDA Zones Can Tell You
USDA hardiness zones describe average annual extreme minimum temperatures. They are useful for growing context, but they are not a bloom calendar.
A plant may be hardy in a zone but flower at different times depending on latitude, elevation, weather, pruning, irrigation, and cultivar.
How to Use Zone Pages
Start with your broad zone group, then filter by season, plant type, and forage value. Confirm likely sources by checking what is currently blooming nearby.
Plants Mentioned in This Guide
Sunflower
Orange and amber / Summer to Fall / Zone 2 - 11
Goldenrod
Orange and amber / Summer to Fall / Zone 2 - 8
Willow
Orange and amber / Spring / Zone 2 - 9
Lavender
Orange and amber / Summer / Zone 5 - 8
Dandelion
Red and rust / Spring to Fall / Zone 3 - 9
Apple
Orange and amber / Spring / Zone 3 - 6