Chilopsis linearis
Desert Willow
Desert Willow is a bulletproof tree for hot-summer regions. Weeping form is appealing, as are the spring flowers. Long brown to tan seedpods add interest in winter. Many selections are available in a range of colors. Canopy coverage: 314 square feet.
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Chionanthus virginicus
Fringe Tree
Fringe Tree can be grown as a small tree or shrub. Its name stems from the delicate, somewhat fragrant flowers that are borne in airy clusters late in spring. Yellow fall color. Birds enjoy the olivelike fruits in late summer. Canopy coverage: 314 square feet.
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Chitalpa x tashkentensis
Chitalpa
Chitalpa is a hybrid of two genera: Chilopsis and Catalpa. It is a tough plant, accepting summer heat. Striking flowers and lush evergreen form are attractions. Many flower colors available. Look for the improved selection 'Morning Cloud'. Canopy coverage: 707 square feet.
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Chorisia speciosa
Silk Floss Tree, Kapok
Silk Floss Tree matures into a tall, wide-spreading tree with time, so select its location carefully. Winter cold can be an limiting issue, particularly with young trees. Puts on quite the color show in winter when other plants are quiet. Distinctive trunk is bright green and covered in thorns. Canopy coverage: 707 square feet.
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Cinnamomum camphora
Camphor Tree
Not a perfect tree, so be aware of certain issues. Can grow much larger than stated here with time if conditions are ideal. Enjoy its bountiful summer shade and leaves that produce a camphor scent when crushed. Roots are aggressive and can invade other planting areas. Produces messy leaf drop. Susceptible to verticillum wilt disease. Best with some protection from the sun in hot summer regions. Canopy coverage: 1,963 square feet.
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Citrus species
Citrus
Citrus comprise an extremely wide range of fruiting trees and shrubs. Each species has its own unique size, fruiting periods, cold hardiness and climate adaptations. There is not enough space here to provide complete information. Generally cold hardy from 25F to 32F, with limes being the most cold sensitive to frost. Oranges, mandarins and kumquats are among the most cold hardy. When irrigating Citrus, water away from the trunk and apply near the tree's dripline. See photo. Maintain regular irrigations for fruit production. Average canopy coverage: 177 square feet.
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Comarostaphylis diversifolia
Summer Holly
An uncommon California native grown as a low maintenance tree or shrub. Known to have a very slow growth rate. Spring flowers that look like tiny white bells are followed by bumpy, red fruit. Accepts full sun only along the coast; in hotter locations provide afternoon shade. Requires zero summer watering after plants live through their first year. Canopy coverage: 79 square feet.
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Cordia boissieri
Texas Olive
Large leaves and showy flowers provide a subtropical appearance. Semievergreen in cold climates. Canopy coverage: 79 square feet.
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Cordyline australis
Giant Dracaena
This yuccalike plant can serve just about any landscape function, depending on its age and how it is maintained. Young plants present as a fountain of long, straplike leaves. Tiny fragrant flowers bloom in clusters in late spring. With time, it can become a tree form with tall, slender, upright trunks. Selections are available in a wide range of dramatic foliage colors. Canopy coverage: 113 square feet.
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Cotinus coggygria
Smoke Tree
Smoke Tree is a tree or shrub grown for its colorful foliage rather than flowers. The interesting "flower puffs" are actually faded flowers. Fall color in shades of yellow and orange is an attraction. 'Royal Purple' is a popular selection; additional selections are available with foliage in different colors. Best with some protection from the sun in hot summer regions. Canopy coverage: 177 square feet.
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Cupressus arizonica
Arizona Cypress
Look for improved selections such as 'Gareei', 'Pyramidalis' and 'Blue Pyramid'. Cupressus glabra is similar, commonly known as smooth-barked Arizona cypress. Canopy coverage: 314 square feet.
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Cupressus arizonica var. glabra
Smooth Arizona Cypress
This Cypress is quite similar to Arizona Cypress. It is commonly known as Smooth Arizona Cypress. Bark is smooth and a cherry red color. 'Blue Ice' is a popular selection with silver-blue foliage. Canopy coverage: 314 square feet.
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Cupressus sempervirens
Italian Cypress
Italian Cypress is well-known for its use in the formal landscape. Selections 'Stricta' and 'Glauca' (blue-green foliage) present more refined forms. Canopy coverage: 50 square feet.
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Ebenopsis ebano
Texas Ebony
Texas Ebony makes an attractive small tree. Bark can sunburn in hot-summer areas, so prune carefully to avoid too much sun exposure, especially when plants are young. Canopy coverage: 314 square feet.
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Eriobotyra japonica
Loquat
Large leaves and edible pear-shaped fruit give this tree a subtropical feeling. Be aware fruit are damaged at 28F. Best with some protection from the sun in hot summer regions. Look for 'Champagne' or 'Thales' for more tasty fruit. Canopy coverage: 177 square feet.
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Eucalyptus cinerea
Argyle Apple, Silver Dollar Gum
Interesting reddish bark on twisting branches and stark, grayish leaves are attractions of this Eucalyptus. Leaves are round in juvenile (young) stage, then elongate and curve as they age. Foliage is so distinctive it is often used in floral arrangements. Canopy coverage: 491 square feet.
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Eucalyptus leucoxylon
White Ironbark
Mature size of this tree is highly variable depending on soil and moisture conditions. Consider height and width noted here as a general guide. Also consider Eucalyptus leucoxylon rosea, and its hot pink flower show in winter. Canopy coverage: 707 square feet.
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Eucalyptus microtheca
Coolibah
This is a Eucalyptus that typically remains in scale for residential use. Can make a nice, tall screen. Canopy coverage: 491 square feet.
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Eucalyptus nicholii
Narrow-leaved Black Peppermint
Fast growth and potential long life make this Eucalyptus a good garden selection. Nice, attractive weeping form. Leaves emit a peppermint scent when crushed. Deeply fissured brown bark adds interest. Canopy coverage: 1,257 square feet.
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Eucalyptus papuana
Ghost Gum, Blue Ghost Eucalyptus
Ghost Gum is accepting of wind and tough growing conditions. Handsome form, but most striking feature is its smooth, white bark. Canopy coverage: 707 square feet.
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Eucalyptus polyanthemos
Silver Dollar Gum
The common name of Silver Dollar Gum is due to the shape of its juvenile (young) leaves. Leaves eventually elongate to look more like the typical Eucalyptus foliage but only after a number of years. Makes a nice screen or windbreak. Best with some protection from the sun in hot summer regions. Canopy coverage: 491 square feet.
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