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S & J Nursery's Guide to Growing

Chinese Golden Rain Trees /

Chinese Flame Trees

in The Northeast Florida Landscape

( Koelreuteria bipinnata)


 

Golden Rain Tree Blooms Chinese Golden Rain Tree / Chinese Flame Tree Koelreuteria bipinnata Origins:

 

- Koelreuteria bipinnata is a species of Koelreuteria native to Asia, and particularly to China. Grown for it's beautiful golden yellow blossoms that fall off the tree in a shower of gold colored petals when the wind blows. This shower of petals is where the common name of the golden rain tree comes from. If you are ever lucky enough to be nearby to one of these beauties on a blustery day in the fall, it is truly quite an experience! 

 

The trees begin to bloom in late summer here in the NortheastChinese Golden Rain Tree capsules forming Florida / Jacksonville and St. Augustine area landscapes. Blooms are quickly followed by the formation of beautiful bougainvillea like pappery bracts (fruits) that change from deep reddish, to pink peach, and finally to a tan color. These capsules persist on the tree for quite a while during fall making a beautiful multicolored display. And of coarse, these multicolored papery bougainvillea like fruits are where the tree gets its second common name of a Chinese Flame tree.

 

In Northeast Florida these trees are a much welcome addition to the landscape for added fall color. We see so little foliage color change, the bright golden flowers and the color changing fruits that you can see from down the street are a delight to the eye!

 

Koelreuteria bipinnata is NOT on the Noxious weed list put out by the Florida Department of Agriculture and Consumer services, but still somehow seems to get confused with it's close relative the Koelreuteria elegans, also commonly called Golden rain tree. Koelreuteria elegans is listed as a category 2 invasive plant species for Central and Southern parts of Florida (not for the Northern portion of the state) That means it should be used with caution when planting in Central and South Florida. Koelreuteria bipinnata can safely be used in North, Central and Southern parts of Florida as of the Florida Exotic Pest Plant Councils 2015 listing.

 

The two trees look very similar and are most easily differentiated by the fact that the Koelreuteria elegans remains semi evergreen and the Koelreuteria bipinnata is deciduous, it will loose all of its leaves come late November and December.  

 

Chinese Flame Tree seed capsulesPreferred Exposure of the Chinese Golden Rain Tree / Chinese Flame Tree Koelreuteria bipinnata:

 

- Chinese Golden Rain Trees or Chinese Flame trees, require a full sun exposure when planted in the North Florida | Jacksonville | St. Augustine area gardens landscape.

 

Foliage | Bark of the Chinese Golden Rain Tree / Chinese Flame Tree Koelreuteria bipinnata:

 

- Deep green foliage of the Chinese Golden Rain tree is deciduous, meaning the tree will drop all of its leaves for winter. Leaves turn briefly yellow in fall here in Northeast Florida before the tree goes dormant for the winter.

 I don't usually go into depth on foliage but for this tree that is so often confused with other species of its kind, that also grow in Florida, here is the technical breakdown on the leaves...  

 

Koelreuteria bipinnata has twice compound (bipanneately compound) and alternate leaves, and I bet you'll never guess what? That is where the tree gets its botanical name from! But you knew that already! Leaves are ovate, oblong and from 2-4 inches in length.

 

Note: This leaf pattern can be used to differentiae the Koelreuteria bipinnata from the Koelreuteria paniculata that has single pinnate and opposite leaves.

 

 - Young bark is smooth and a lighter brown color and begins to grey and develops deeper furrows as the tree ages.

 

Soil Preference / Salt tolerance of the Koelreuteria bipinnata Chinese Flame Tree:

 

- Chinese golden rain trees will tolerate a wide range of soil components and conditions. Wet, dry, clay, loam, sand, alkaline, acidic etc.

 

- Moderate aerosol salt tolerance.

 

Size Variance of Golden Rain Tree Koelreuteria bipinnata:

 

- Chinese Flame trees can reach sizes of 40-60 feet H | 20-35+ feet Wide and are usually seen at ranges closer to 20-35 feet in height and width in the Northeast Florida Landscape.

 

Growth Habit of the Chinese Golden Rain Tree Koelreuteria bipinnata:

 

- More upright branch structure than others, wider than tall , branch structure and growth is quirky when young but trees will quickly fill in to a nice full mushroom shape when planted out into the landscape.

 

Growth Rate of the Chinese Golden Rain Tree / Chinese Flame Tree:

 

- Fast growing tree here in the Northeast Florida area. You can expect 2 feet or more in growth each growing season when young. And 1-2 feet each year as the trees mature.  

 

Blooms of the Chinese Flame Tree of Chinese Golden Rain Tree:

 

- Beautiful large clusters of golden yellow blooms in late summer and early fall. Fruits are a three lobbed papery husk or capsule that changes color from dark reddish burgundy to pink, peach and tan as they age giving the tree it's multicolor fall display. Very showy trees.

 

Water Requirements:

 

- Water well after planting during the establishment period. Little supplemental irrigation is needed after the first few months once the tree has resumed active growth after being planted from the S & J Nursery container. 

 

Butterfly or Bird Attracting:

 

- NA.

 

Best Uses For Chinese Golden Rain Trees in the North Florida | Jacksonville | St. Augustine area Landscape:

 

- Often used as the centerpiece in the landscape

where the blooms and seed capsules can be appreciated.

 

Care of Chinese Golden Rain Tree / Chinese Flame Tree Koelreuteria bipinnata Trees:

 

- Water every day during the establishment period. See watering your newly planted trees for more information.

 

- Prune dead or weakened branches each summer for the first few years as needed making sure to space branches evenly on trunk and choose permanent branches with a nice wide angle and no included bark.

 

- When growing in the gardens landscape provide a 1 ft diameter circle of mulched area where grass is kept from growing for each inch of caliper (or diameter) of trunk measured 4 inches from the ground level.

 

- Fertilize each spring with a mixture of Milorganite and a slow release poly coated plant food such as Osmocote or Stay Green general purpose plant food, sprinkling the fertilizer around the mulch circle underneath the foliage of the tree

 

 

 Click here for more information on  Chinese Golden Rain Tree / Chinese Flame Tree Koelreuteria bipinnata the North Florida | Jacksonville | St. Augustine area landscape.