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Hardiness: USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F)
Sun Exposure: Full Sun
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: Bright Yellow
Bloom Time: Late Summer/Early Fall Mid Fall
Foliage: Deciduous
Other details: Average Water Needs; Water regularly; do not overwater Flowers are good for drying and preserving
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: From seed; direct sow outdoors in fall
Seed Collecting: Allow pods to dry on plant; break open to collect seeds Allow seedheads to dry on plants; remove and collect seeds
On Nov 9, 2008, htop from San Antonio, TX (Zone 8b) wrote:
Koelreuteria bipinnata can be distinguished from Koelreuteria paniculata by the bipinnately compound leaves with entire or finely toothed leaflets, flowers with 4 petals and elliptically shaped fruits. The seedpod bracts change from pink to salmon. Koelreuteria paniculata has once pinnately to a few imperfectly bipinnately compound leaves, coarsely toothed to lobed leaflets, 5-petaled flowers and conically shaped fruits. Koelreuteria elegans differs from K. bipinnata by its being evergreen, having tighter inflorescences and having leaflets with very oblique bases.
On Sep 30, 2006, nalin1 from New Delhi India (Zone 10a) wrote:
A drought hardy tree in Zone 10a New Delhi, Koelreuteria Bipinnata is also known as the golden 'Pride of India' tree. (Another more well-known ‘Pride of India’ tree is the Crepe Myrtle-- Lagerstroemia Indica and Lagerstroemia Flos Regina that have pink and mauve flowers respectively. The L.Thorelii also has pink flowers.).
Fairly fast growing, Koelreuteria has beautiful panicles of small yellow flowers late summer through October, and the fruit capsules that follow are papery pinkish red lantern shapes that stay on the tree a long time also looking like flowers from a distance.
Koelreuteria bipinnata is a very nice shady tree that grows to over 30 feet with an equivalent spread. I am planting one at the parking lot at my farmhouse near two Spathodeas.Technically in some areas both these trees may be classified as 'weeds', but that aspect is quite manageable with a little care in this growing zone, and there are no reports of these as weeds. (I understand that the koelreuteria paniculata is quite invasive.)
The yellow flowers of koelreuteria bipinnata turning to pinkish red is a fine late summer-autumn show that lingers on.
On Aug 7, 2004, thehumblebumble from Heber Springs, AR (Zone 7b) wrote:
The Golden rain tree has beautiful bright yellow blooms but here it is and extremely slow grower. Which would be good if you were looking for a specimen tree which stays compact.
Regional...
This plant has been said to grow in the following regions:
Semmes, Alabama Heber Springs, Arkansas Manteca, California Arvada, Colorado Fort Collins, Colorado Longwood, Florida Kentwood, Louisiana Leblanc, Louisiana Rock Hill, South Carolina Austin, Texas San Antonio, Texas Lexington, Virginia
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