This consistently heavy producer has a hard shell with a good seal. This combination offers exceptional production, similar bloom and harvest times, and kernels that closely resemble each other. Sonora Blooms before Nonpareil. The production potential for this high quality tree is very good. Sonora features large kernels with a very high shelling percentage.
Trees are medium to large with a tendency to spread.
Sonora is compatible on Marianna 26-24 rootstock. This newer variety appears to be very productive. The Aldrich blooms with Nonpareil but harvests 14 days later than Nonpareil. This is a large tree with an upright growth habit. The Aldrich nut is similar to the Merced.