Gray Oak Tree
The gray oak is a handsome evergreen oak with the most pleasing blue-grey leaves, native to the Southwest and down into Mexico. It’s currently an uncommon tree in the nursery trade but hopefully that changes as gardeners fall in love with its beautiful form, evergreen foliage and adaptability. We are growing a grafted clone called ‘Ecinoso’ that was discovered at 6400′ in Ecinoso, New Mexico.
Latin Name: Quercus grisea
Site and Soil: 1/2 day to full sun and well-drained soil.
Hardiness: Hardy to at least 0F
Bearing Age: 4-5 years after planting
Size at Maturity: This selection of gray oak should only grow to about 15-20 ft. in height
Bloom Time: April
Ripening Time: August
Yield: 50+ lbs.a
Pests & Diseases: Oaks are susceptible to Sudden Oak Death, a fungal disease that can kill entire stands of oaks, though we’ve not seen it yet in our area
USDA Zone: 8a, we’re guessing. Plants have been hardy for the past 4 winters here in the PNW