Why Ginkgo Trees Smell Bad
Male ginkgo trees produce pollen and small structures that release a foul, rancid odor, often compared to vomit or rancid butter. The smell comes from butyric acid and other volatile compounds. Female trees produce fleshy seeds with a similarly unpleasant scent when they ripen and fall.
When and Where the Smell Is Strongest
The strongest ginkgo tree stink usually occurs in late summer and early autumn, when seeds drop and temperatures are warm. Urban areas with many male trees can experience concentrated odors along streets and sidewalks. The smell often intensifies after rain or during humid conditions.
How to Reduce Ginkgo Odor
Planting only male cultivars, such as 'Autumn Gold' or 'Princeton Sentry', avoids seed-related smells entirely. Regular cleanup of fallen seeds and proper pruning can also limit odor buildup. For more details on ginkgo tree care and selection, see this guide from the Missouri Botanical Garden: https://www.missouribotanicalgarden.org/plantfinder/plantfindersearchresult.aspx?kempercode=x241.
