Pinot Iskra
Also known as: UD 109-033
Carries the deepest resistance stack in the family: two downy loci (Rpv 1, Rpv 12) and two powdery (Run 1, Ren 3). Reads close to its Pinot Blanc parent, fresh and persistent. No US plant patent and no US channel found.
Across the consideration criteria
What it makes
Aromatic family
Tasting notes
How it grows
- Cold hardiness
- Hardy to about -4°F
- Ripening
- Early-season
- Vigor
- High
- Disease tolerance
- Moderate, on 2 of 6 pathogens rated
- Drainage need
- Well
- Soil pH
- 6–7
- Graft requirement
- Graft Required
- US availability
- Unavailable
Considerations
Primary buds start to die near -4°F. Cold-tender; wants a mild winter or protected site.
Needs roughly 2550 growing degree-days to ripen, an early-season variety (Winkler I-II). A mid-length season carries it most years.
Foliar-disease pressure is light for this variety, a routine spray program in a humid climate. One of the easier vines to keep clean.
Susceptible to Pierce's disease. Only a threat in the warm, humid South and parts of California; cold-winter regions cure it naturally.
High vigor. Wants leaner ground and active canopy management, or fruit hides in shade.
Low heat tolerance. Bakes and loses acid on hot sites; favors cooler ground.
Moderate water demand. Average moisture needs for a wine grape.
Prefers soil pH between 6.0 and 7.0. Outside the band, lime or sulfur brings it in range.
Phylloxera-susceptible: plant grafted onto resistant rootstock.
These are intrinsic to the grape. On a real property, Folia scores each against your site; here they're shown on their own.
Grows alike
similar to growKersus
Same heat band (low) · Same Winkler band (I-II)
Frontenac Gris
Same heat band (low) · Same Winkler band (I-II)
Souvignier Gris
Same heat band (low) · Same Winkler band (I-II)
Edelweiss
Same heat band (low) · Same Winkler band (I-II)
L'Acadie Blanc
Same heat band (low) · Same Winkler band (I-II)
Adalmiina
Same heat band (low) · Same Winkler band (I-II)
Climate-adapted alternatives
more resilient picksAromella
Tolerates 13°F more winter cold · Higher heat tolerance in the same role
Savagnin
Tolerates 11°F more winter cold · Higher heat tolerance in the same role
Jacquère
Tolerates 11°F more winter cold · Higher heat tolerance in the same role
Altesse
Tolerates 11°F more winter cold · Higher heat tolerance in the same role
Budai Zöld
Tolerates 11°F more winter cold · Higher heat tolerance in the same role
Seyval Blanc
Tolerates 11°F more winter cold · Higher heat tolerance in the same role
Could Pinot Iskra grow on your land?
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