Orchard fruit
Across the U.S., plums ripen from Florida (early May) all the way to Wisconsin (mid-August). Hatched chalk is the early and late shoulder; the solid stretch is peak.
No chalk window in these states — no meaningful market production, so we'd rather say so than invent dates. Each page says where the supply really comes from.
Taste one first — varieties swing from candy-sweet to tart-skinned — and pick into shallow buckets.
Time the trip with the u-pick planner — it builds in the two-weeks-either-side honesty.
It depends where you stand. Across the U.S., plums ripen from Florida (early May) all the way to Wisconsin (mid-August). In most growing states the peak lands around August — your own state's row on the board above is the honest answer.
California, where the season runs early May to mid-September. Long seasons usually mean a big state with more than one growing region inside it.
Pick your state on the what's-in-season board (it remembers you), or jump to your state's row above — each one links to the full plum-and-state page.