Grapes › Zinfandel
Zinfandel
Also known as Primitivo.
A red wine grape with black berries (Wikidata).
Wikidata records it as a cross of Blatina.
Grapes bred from it include Grk Bijeli.
On this site Zinfandel is a main grape in 2 regions, from Sonoma County at 1,800 GDD (Winkler III) to Paso Robles at 1,900 (Winkler III).

Its regions on the heat scale
Each region's 1991–2020 normal growing degree days, coolest at the top. Tap a row to open the region.
Recent vintages in its regions
| Region | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|
| Sonoma County | +2% | +9% | +19% | +4% | +8% | +2% | +16% | +3% |
| Paso Robles | +3% | -2% | +10% | -4% | +11% | -7% | -1% | -4% |
Percent above or below each region's 1991–2020 normal heat.