Redbuds in bloom are a most welcome harbinger of spring. Their dense clusters of magenta flowers bloom early, providing splashes of color against a winter landscape of browns and grays. Is the name redbud really the best our ancestors could come up with for this beautiful tree? How could they call that color “red”? Even Wikipedia manages a more accurate “pink to purple.” Other sources are more specific, identifying the brilliant flora as bright pink, rosy pink, magenta, or reddish purple.

The redbud's Latin name, Cercis, is equally pedestrian: it is taken from the Greek kerkis which means “a weaver's shuttle” and refers to the shape of the tree's seed pods. Both the tool and the seed pods (which are essentially fruits) are elongated ovals with gently pointed ends. Cercis is a member of the Fabaceae or pea family (technically a legume) and it bears the family resemblance both in its fruits, which in shape and size are dead ringers for snow peas, and in its flowers.

Cercis occidentalis is native to the arid western states. It is commonly known as Western or California redbud, and sometimes Arizona redbud. Occidentem is Latin for “western sky” or “part of the sky in which the sun sets,” derived from the Latin verb occido – “go down, set.” The Occident is the longitudinal opposite of the Orient, and many species from China and other eastern regions are termed orientalis. Somewhere along the line, C. occidentalis acquired the second or synonymous binomial C. orbiculatum. Orbiculate translates naturally enough as round or circular in shape (in this case, in reference to the redbud's leaves). And if you are thinking now of Judas Tree as a common name, that belongs to the Eastern redbud. (Interestingly, the Latin name of the Eastern redbud is C. canadensis. And yes, you guessed it: canadensis is used in taxonomy to denote species indigenous to or strongly associated with Canada).

Enough fun with words: the focus here is on the Western redbud. This species is found in Arizona, California, Nevada, and Utah. It typically is a small deciduous tree, more often a shrub, rarely reaching over 20 feet in height. A notable exception to that is a C. occidentalis in Santa Rosa that is registered as a California Big Tree. It measures 45 feet high, has a trunk circumference of 71 inches, and a crown spread of 38 feet. Most specimens grow multi-stemmed trunks and develop a low, spreading, rounded or umbrella-shaped canopy of 10 to 20 feet in diameter. The Western redbud boasts a wildly variable life span, from 40 years all the way to 150.

A hardy plant, the redbud is drought tolerant, sun-loving, and successful in a variety of soils. Typically, it prefers rather harsh environments with marginal, well-drained soils. It grows best in chaparral ecosystems below 4,000 feet in elevation, and prefers canyon walls and other steep slopes. It can also be found in gravely and rocky soils along streams above their flood zone. Western redbud tolerates some seasonal water and will grow in the bottom of ephemeral streambeds in little pockets, as well as on foothill benches, or tucked into crannies created by boulder outcroppings.

Regionally, redbud takes root in the foothills and mountains of California. Locally, it dots the hillsides in Upper Bidwell Park and the western Sierra Nevada and Cascade foothills. One of its more striking attributes is its penchant for solitude, which is what makes it such a vibrant surprise when it blooms in late February/early March. Very seldom will it grow in groups or shrubby clumps, and then only in sheltered niches.

Western redbud is a popular landscape tree on the valley floor precisely because of its impressive beauty, which isn't restricted to eye-catching floral displays. The rounded, heart-shaped leaves are a silky combination of copper and green when they first emerge, darkening to various shades of green, gray-green, or blue-green. According to the USDA, the Western redbud's “autumn display of yellow turning to red and brown rival that of some eastern hardwoods.” This plant sets its fruit in the form of thin dry seed pods in autumn. Each pod contains about seven hard, bean-like seeds. As they ripen, the pods change in color from purple to russet brown. (On some redbuds, the mature pods hang on the branches into the next winter.) Once the redbud has shed itself of leaves and pods, the bare branches provide winter beauty as a silver-gray silhouette.

The straight, pliable, burgundy-colored young shoots of the California redbud were prized by native basket weavers. Designs were woven into baskets with redbud shoots, and a faint reddish dye derived from the bark was used to tint finished baskets. To ensure a reliable supply of this valued material, California tribes regularly burned hillsides in the fall, after the redbuds had shed their leaves. Prior to European settlement, the western Mono, foothill Yokuts, and Miwok Native Americans of the central and southern Sierra Nevada foothills set autumn fires at intervals of one to several years to encourage sprouting. Today's basket artists prune the shrubs to encourage the new growth.

As a legume, redbud is an edible native. Native Americans enjoyed redbud flowers, young seed pods, and even young leaves, both raw and cooked. Apparently, redbud flowers taste almost as good as they look. Fully-opened flowers are somewhat tart and slightly sweet, and add interesting color and flavor (and Vitamin C!) to salads.

This beautiful and hardy native shrub is nowhere near as dull and plodding as its common name implies. While the redbud makes year-round contributions to the landscape, the Arbor Day Foundation correctly notes that “the sheer springtime beauty of the redbud may be its greatest hold on the American spirit.”

For more information on gardening in our area, visit the Butte County Master Gardener webpage at: http://ucanr.edu/sites/bcmg/. If you have a gardening question or problem, call our Hotline at (530) 538-7201 or email mgbutte@ucanr.edu.

Photo Credits:
Cercis occidentalis blossom close-up by Allicon Garcia: https://ucanr.edu/repository/view.cfm?article=166638%20&search=Cercis

Cercis occidentalis near Briceberg by LaurentianShield - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=78098719

Cercis occidentalis leaves and seed pods by John Comeau - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=26493957

Cercis occidentalis seed pod close-up by John Rusk from Berkeley, CA, United States of America - H20150416-0002—Cercis occidentalis—RPBG, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=59290592