Ceanothus of all sorts are collectively known as California lilac. A few uncommon species are also known by alternate names that might confuse those who are unfamiliar with them. Most species happen to be native to California, although most are not exclusive to California, and a few are not native to California. The species with the most extensive range is native to the eastern half of America, which does not include California. Incidentally, it is known more familiarly as New Jersey tea.

Ceanothus is not actually related to lilac. It merely blooms within the same season, with tiny flowers in floral trusses that are smaller but sort of shaped like those of lilac. The most traditional lilac bloom with lavender floral color, but a few cultivars bloom with pale blue floral color that sort of resembles that of some of the Ceanothus. Most Ceanothus bloom is richer blue, and some is pale white. The most fragrant of Ceanothus bloom is only mildly fragrant, and only in abundance. Most Ceanothus bloom lacks fragrance or smells rather dusty. Lilac, of course, is famously fragrant.

California lilac is therefore neither notably Californian nor a type of lilac. Nonetheless, during spring, we appreciate its bloom, both within refined landscapes and in the wild. It does not last for long, but it can be impressive, particularly among wild specimens that can grow larger than those within confined landscapes. The blue floral color of the majority of wild specimens and perhaps all cultivated specimens is comparable to that of native lupines, and contrasts splendidly with bright orange California poppies that bloom at about the same time. California lilac that grows wild need no maintenance, and although individual specimens do not last long enough to get old, they reliably replace themselves like so many native species do.