Golden Rain Tree, Golden Raintree, Panicled Goldenraintree 'September'

Koelreuteriapaniculata

Family
Sapindaceae (sap-in-DAY-see-ee)
Genus
Koelreuteria (keel-roo-TER-ee-uh)
Species
paniculata (pan-ick-yoo-LAY-tuh)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
20-30 ft. (6-9 m)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
From seed; direct sow after last frost
From seed; germinate in a damp paper towel
From seed; germinate in vitro in gelatin, agar or other medium
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Malvern, Arkansas

Irvine, California

Titusville, Florida

Terre Haute, Indiana

Versailles, Kentucky

Ethel, Louisiana

Roslindale, Massachusetts

Saint Louis, Missouri

Cincinnati, Ohio

Baytown, Texas

Ridgefield, Washington

show all

Featured Videos

Gardener's Notes:

2
positives
1
neutral
2
negatives
Sort By:
Sort By:
C
ROSLINDALE, MA | April 2014 | neutral

'September' blooms in late August and early September in Boston Z6a. Its immature seed capsules are green, like the species.

...Read More

W
Saint Louis, MO (Zone 6a) | September 2013 | positive

It's nice having a plant bloom this time of year.
I haven't had problems with unwanted seedlings.

J
Titusville, FL | October 2012 | positive

My first house that I ever bought here in central Fl. had two full grown rain trees in the front yard, that was in 1979. I built a house ...Read More

W
Irvine, CA | September 2012 | negative

I do not personally grow this tree but my neighbor has one and it is very invasive. Every seed is fertile and the Santa Ana winds here in...Read More

N
Versailles, KY | June 2011 | negative

Although I love the shape and size, and it gives what I call muted shade - meaning not total, I hate that there are thousands of seeds pr...Read More

Featured
Viceroy
(Basilarchia archippus)
Northern Cardinal
(Cardinalis cardinalis)
Featured
Viceroy
(Basilarchia archippus)
Northern Cardinal
(Cardinalis cardinalis)