Sauvignon Rytos
Also known as: UD 55-100
PIWI white, Rpv 3 + Ren 3. The one member VCR calls botrytis-SENSITIVE: compact cluster on a thin skin. Breeder rates it black-rot tolerant, held here at moderate pending US data. Latest budbreak of the whites. Guyot.
Across the consideration criteria
What it makes
Aromatic family
Tasting notes
How it grows
- Cold hardiness
- Hardy to about -9°F
- Ripening
- Mid-season
- Vigor
- Moderate
- Disease tolerance
- High, on 4 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 -9°F. Cold-tender; wants a mild winter or protected site.
Needs roughly 2750 growing degree-days to ripen, a mid-season variety (Winkler III). A mid-length season carries it most years.
Foliar-disease pressure is moderate for this variety, a regular spray program in a humid climate. Regular cover sprays through the wet months.
Susceptible to Pierce's disease. Only a threat in the warm, humid South and parts of California; cold-winter regions cure it naturally.
Moderate vigor. Easier to balance; tolerates more fertile ground.
Moderate heat tolerance. Comfortable across a moderate heat range.
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 growSauvignon Nepis
Same heat band (moderate) · Both moderate diurnal dependence
Sémillon
Same heat band (moderate) · Same Winkler band (III)
Glera
Same heat band (moderate) · Same Winkler band (III)
Trousseau
Same heat band (moderate) · Same Winkler band (III)
Schiava
Same heat band (moderate) · Same Winkler band (III)
Budai Zöld
Same heat band (moderate) · Same Winkler band (III)
Climate-adapted alternatives
more resilient picksLouise Swenson
Better black rot + botrytis resistance (3 pathogen-steps improved) · Tolerates 24°F more winter cold
La Crescent
Better botrytis resistance (2 pathogen-steps improved) · Tolerates 27°F more winter cold
Frontenac Gris
Better botrytis resistance (2 pathogen-steps improved) · Tolerates 21°F more winter cold
Itasca
Better botrytis resistance (2 pathogen-steps improved) · Tolerates 22°F more winter cold
Prairie Star
Better botrytis resistance (2 pathogen-steps improved) · Tolerates 27°F more winter cold
Brianna
Better botrytis resistance (2 pathogen-steps improved) · Tolerates 19°F more winter cold
Could Sauvignon Rytos grow on your land?
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