The species of dogwood tree diagram that is native to California is the Pacific or westerly dogwood ( C. nuttallii ) . It is one of the tallest of the dogwoods and one that produces the most blooms . Its natural home ground ranges from southerly British Columbia in Canada to the southernmost parts of California and as far as 200 miles inland .
Features
The branches of the westerly dogwood , which can acquire horizontally as well and vertically , organise a loggerheaded treetop that can be round or cone - form . The Sir Herbert Beerbohm Tree can grow from 15 to 40 feet tall , or be trim back to grow as a hedge . It give rise white flowers that can have a touch of pink and are larger than the flowers of other dogwood metal money , and orange - cerise Berry . The green leaves twist yellow / orange in the descent and then precipitate off .
Climate
The California cornel is hardy in planting zone 7 - 9 . Zone 7 ranges from Delaware to north Georgia and along the coastal areas of New Jersey , Long Island and Cape Cod in the Eastern U.S. ; southern New Mexico and part of Arizona , Nevada and the southerly part of Utah in the South ; and , in the West , the easterly border of California through cardinal Oregon and Washington , as far northward as Alaska ’s Inland Passage , domain where the winter temperature do not go below 0 to 10 academic degree F.
Zone 8 ranges along the westerly and southerly borders of the United States and up the East Coast as far as North Carolina , areas where the wintertime temperatures do not get below 10 to 20 degree F.
Zone 9 is one of the smallest – central Florida , the coastal area of Louisiana and Texas , the rest of California and the southernmost part of Oregon , areas where the winter temperatures do not go below 20 to 30 degrees F.

Environment
The California cornel is not fussy when it come to sunlight . It can grow in full sun – an arena that gets at least six hours of sunlight a day – and full or partial shade . The tree like a productive , moist – but not crocked – ground and a lot of humidity .
Uses and Benefits
The California cornel will attract birds and wildlife . It can be used as a viewpoint alone lawn plant , grown as a hedging or as part of a windbreak .
Problems
Older works can be damaged by too much lacrimation . If the torso has been damaged , such as when it is hit by a lawn mower , it becomes very vulnerable to fungous disease . The wound gives the fungus a piazza through which it can enter the tree . It is very susceptible to a fungous disease called anthracnose , a disease that come close to wiping out the dogwood universe in the 1980s .