Interior Live Oak

Interior Live Oak Tree

A lovely evergreen oak native throughout much of California, the interior live oak can take a small shrubby form in more southern parts of the state or grow into a stately single trunked specimen further north. It has proven itself a reliable street tree here in Portland with exceptional drought tolerance and even handling snow and ice like a champ.

Explore more oak varieties HERE!

Latin Name: Quercus wislizeni
Site and Soil: 1/2 day to full sun and well-drained soil.
Hardiness: Hardy to at least 0F
Bearing Age: 2-3 years after planting
Size at Maturity: 20-45 ft. in height
Bloom Time: April
Ripening Time: September of the following year
Yield: 50+ lbs.
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: 7