UCB-1 Pistachio Rootstock
A hybrid pistachio rootstock introduced by UC Berkeley, UCB-1 is now the most widely used pistachio rootstock across California. Pistachio trees grafted onto UCB-1 show superior disease resistance, cold tolerance and vigor.
*These plants are intended for use as rootstock only and will not produce desirable nuts on their own.*
Latin Name: Pistacia atlantica x P. integerrima
Site and Soil: Pistachio trees like full sun and well-drained soil.
Pollination Requirements: A male and female tree are required for nut production.
Hardiness: 0F.
Bearing Age: Trees grafted onto UCB-1 usually start bearing 3-5 years after planting
Size at Maturity: 12-18 feet in height
Bloom Time: April-May
Ripening Time: late fall
Yield: 10-20 lbs.
Pests & Diseases: Our Pistachio trees have not been bothered by pests or diseases.
USDA Zone: 7
Sunset Western Zone: 7-12, 14, 15, 18-21
Sunset Northeast Zone: 31-32