It grows well in California's vineyards, particularly the San Joaquin Valley,[2] just like Thompson Seedless.[3] The plant is tolerant of (but not resistant to) powdery mildew,[4][5] and is less susceptible to the fungus than Ruby Seedless, but more susceptible than Mars, Venus, Niabell, and Cayuga White varieties.[2] The fungus can affect its leaves, stems, rachis (stem of the grape cluster), and berries.