UNITED STATES—Cool season annuals are not the only options for home garden color for autumn. Even in mild climates, deciduous foliage eventually notices increasing autumn chill. While some merely sheds, some first develops spectacular autumn foliar color. Such foliage is not as conducive to instant addition to gardens as annuals are. Yet some may already be there.

A few deciduous shade trees and street trees provide the best autumn foliar color. Some are less popular with those who prefer evergreen trees. However, they are quite practical for some situations. Some are less messy than evergreen trees. They only seem messier because they defoliate so much at once. Most evergreen trees shed throughout the year.

Sweetgum, or liquidambar, probably provides the most colorful autumn foliar color. It also happens to be among the messier deciduous trees. That is because it retains its colorful foliage later into autumn and winter. While prolonged mess is a disadvantage, prolonged foliar display is an advantage. It is an unwieldy large tree, though, with aggressive roots.

There are several options for autumn foliar color.

Chinese pistache is as colorful, with dazzling yellow, orange and red autumn foliar color. It seems a bit less messy because it defoliates a bit sooner. Also, it does not produce the spiky seed capsules that sweetgum trees produce. However, its smaller leaves require a bit more effort to rake than larger leaves. Chinese pistache is a rather popular street tree.

Flowering pear, or callery pear, produces similar autumn foliar color, with deeper red. It also provides billowy white spring bloom. Crepe myrtle is a smaller tree with both vivid autumn foliar color and summer bloom. Ginkgo is a tall and slender tree with exclusively brilliant yellow color. Boston ivy is a clinging vine that is as colorful as Chinese pistache.

Not all deciduous trees produce impressive autumn foliar color. Sycamore might already be defoliating with just a bit of pale-yellow color. Valley oak does the same later. Both are quite messy as they defoliate slowly through much of autumn. However, both are notably sculptural while bare later through winter. There are other advantages to deciduousness.

Highlight: Chinese Pistache

Chinese pistache, Pistacia chinensis, does not need too much chill to begin to turn color. In some climates, it is already yellowing. With cooler weather, it will develop fiery orange and red foliar color. Not only does it color reliably with mild weather, but it actually retains its color better. It could defoliate more efficiently within frostier, windier or rainier weather.

ChineseĀ pistache grows about thirty feet tall and broad. Old trees can eventually grow to about forty feet tall. Some old trees are female, so can produce annoyingly abundant red berries. Modern trees should be fruitless male cultivars. Pinnately compound leaves are about nine inches long, with a dozen or so leaflets. Leaflets are two or three inches long.

Because of its resiliency, Chinese pistache is among the more popular shade trees here. Established trees do not need much irrigation and can likely survive with none. Frequent irrigation can promote shallow root dispersion, which can damage pavement. Otherwise, Chinese pistache is a good street tree. It merely needs pruning for clearance over roads, sidewalks and driveways.

Tony Tomeo can be contacted at tonytomeo.com.