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Products > Umbellularia californica
 
Umbellularia californica - California Bay Tree
   

 
Habit and Cultural Information
Category: Tree
Family: Lauraceae (Laurels)
Origin: California (U.S.A.)
Evergreen: Yes
Flower Color: Creamy White
Bloomtime: Spring
Fragrant Flowers: Yes
Height: 25-40 feet
Width: 15-40 feet
Exposure: Sun or Shade
Drought Tolerant: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 0-10° F
Umbellularia californica (California Bay Tree) - A shrubby tree that usually develops multiple trunks and slowly grows to 30 to 40 feet tall, though old large trees are known to approach 100 feet with large basal burls. It has aromatic medium green, narrow, pointed leaves and small yellow-green flowers held in umbels that appear in later winter to early spring and are followed by green fruit often tinged with purple - fruit are reminiscent to small avocados, which are a related plant in the laurel family. This fruit is called bay nuts and some consider it a delicacy. Umbellularia grows in sun or shade and has low to moderate water needs. It is hardy down to 0 degrees F. It is often found in soils that retain some moisture but it is quite drought tolerant and requires no irrigation once established in the garden. It is a great dense growing plant making an excellent tall screen or even a formal clipped hedge or it can be a beautiful specimen tree. Some leaves drop in the fall and leaf litter and dense shade make it difficult to grow other plants under it. The aromatic leaves can be used in cooking, similar to its European relative, the Bay Laurel, Laurus nobilis but are stronger, so less is needed. This plant is common in canyons and valleys through much of California from Baja California to southwestern Oregon at elevations below 5,000 feet. In Oregon this plant is often called Oregon Myrtle or Myrtlewood and its beautiful wood is marketed as only coming from "Oregon and the Holy Land". Its fine-grained yellow-brown wood is sought after by woodworkers for lathe turning, furniture and woodwind instruments. Other common names include Pepperwood, Spicebush, Cinnamon Bush, Peppernut Tree and Headache Tree - this last name because some people are sensitive to the strong aroma of the foliage which is caused by a chemical called Umbellulone. The genus name comes from Latin words 'umbra' (derived from the Ancient Greek 'ómbros') meaning "shade", "shadow" or "umbrella" and 'ulae' meaning "little" so might be translated as "little umbrella" in reference to the small flat top clusters (umbels) of flowers. The specific epithet references the geographical range of this plant within California, though also north into Oregon.  This description is based on our research and the observations we have made of this plant as it grows in containers at our nursery, in our own garden and in other gardens. We also appreciate receiving feedback of any kind from those who have additional information about this plant, particularly if they disagree with what we have written or if they have additional cultural tips that would aid others in growing Umbellularia californica.
 
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