This is not a sexist remark if you’re addressing a dioecious tree — simplified, a tree that grows either male or female flowers on separate plants. In Asia the female trees are grown to produce the Ginkgo nut food crop. Male trees will produce a cone structure to send out pollen. That is why males are usually preferred for landscapes. The female tree produces flowers that bloom at night and produce an orange-tan color fruit with seeds. Female ginkgo trees produce stinky fruit. Fascinating! I've loved ginkgo trees for years because of their neat fan-shaped leaves and the beautiful gold they turn in the fall. That said, I have heard that if the fruit is ripe but not allowed to become overripe, or rot, it has little or no odor. I honestly don't ever remember seeing fruit before. The fruits and seeds of some trees and shrubs, such as buckthorn, mulberry, persimmon, and (female) ginkgo are unsightly, smelly, and have the potential to be a hazard when they fall on sidewalks, driveways, and other areas in a landscape. One is to cut your tree down and replace it with a certified male ginko tree. “The smell is just horrible. The Ginkgo tree, which dates back 200 million years, is the unsung hero of so many Southern neighborhoods. Ginkgo biloba, commonly known as ginkgo or gingko, and also known as the maidenhair tree, is … This fruit frequently makes a mess on lawns, paths, and sidewalks. That must mean that you have a sizeable tree to deal with. Female trees bear a fruit-like product (actually a seed ball) that not only emits a foul odor but also is slippery when it drops down on sidewalks or driveways. Also known as the Maidenhair Tree. Our Minnesota arboretum is probably in a colder zone than you, but their female ginkgo trees are quite variable in fruit production from year to year. The fruit falls on to the ground or streets and when stepped on a bad odor is carried throughout. So, sometimes trees have a cycle of fruit bearing, maybe every other year, maybe they bear for 2 years and stop for 3, and so on. The fruit of a female ginkgo tree . Male trees produce pollen, while females produce an odorous fruit containing the desired and edible seed called a Ginkgo nut. This is because ginkgo trees are actually a gymnosperm (conifer). Female Plant A female Ginkgo biloba produces seeds that are covered by an outer layer, sometimes referred to as the fruit. Slow growing and requires good soil and plenty of water during summer. Female trees produce quite smelly fruit after 15-20 years. Reproduction. Female flowers are twin ovules at the end of a stem & set in clusters. The female ginkgo tree produces a stinky fruit that smells uncannily like dog poop—then, for good measure, said fruit drops to the ground and sticks to the bottom of your shoe. Although ripe fruit is prized food in Japan and China, most gardeners prefer not to grow female Ginkgo trees, as ripening fruit is messy and smells awful. Ginkgo biloba is considered to be dioecious, or (possessing) male and female organs on different trees; because of this we will take a careful look at both the male and female plants. Although I didn't have a reaction, to be on the safe side, you may want to wear gloves when collecting it. But maybe I've just never been around a female tree that has a male tree nearby. Is there no way that the sex of a tree can be determined before it is planted? Mature ginkgo tree bears fruits during September through November. Ginkgo has few problems other than issues with the … Fruit on the female ginkgo tree on Armagh St, Christchurch. The female ginkgo tree on my street is dropping its smelly fruit on the pavement. Female trees are often single plantings, rather than a series of trees. Close. Diagnosis of contact dermatitis to ginkgo fruit should be made in cities where female ginkgo trees grow, in Chinese, Japanese and South‐East Asian subjects, who are aware of the ginkgo nut's culinary qualities within the fruit, as well as in children who play with the fallen fruits as “marbles”. This is because female trees produce a foul-smelling seed (or fruit). Cleaning up after female Ginkgo biloba trees is a high-maintenance task. My research shows that the female ginko biloba tree does not produce seeds and fruit until it has been growing for 20-40 years. Using the common name, "maidenhair trees" will help you remember an important fact: It is specifically the female that is messy. The gingko is dioecious which means a tree is either male or female. In some years females do not produce seeds; and even when they do, for all but a brief period in the spring, a male branch appears as an innocuous, seedless patch on the otherwise fruiting tree. Select a male cultivar of ginkgo tree, such as Saratoga, Autumn Gold or Princeton Sentry. The downside of this ornamental tree is the tendency for female trees to drop stinky fruits. This time every year, one tree stands out - the mighty female ginkgo behind my Summer House, which started dropping all its smelly fruits just days ago. “Nuisance fruit” is a concern for many people including homeowners, landscapers, and park and city officials. Ginkgo are wind pollinated which is not surprising since there was no insect pollination when these trees first evolved. Dig a hole that is twice as wide as your ginkgo’s rootball but no deeper than the root ball. David Beaulieu Because the foliage of Ginkgo biloba resembles that of maidenhair fern, this beauty is sometimes commonly called "maidenhair tree." It takes about 20 years of growth before you can tell if a ginkgo tree is male or female. The nut of the ginkgo … The fruit stinks like rancid butter, which is designed to attract carnivorous animals—possibly dinosaurs, long ago! The female tree bears a plum-like cone with an ill smelling flesh, but the kernel is edible and sweet. Ginkgo (Ginkgo biloba). Female varieties of the ginkgo tree produce a fruit that smells unpleasant. Anyone who finds ripe female ginkgo fruit without a bad odor should save the seeds intact, and either plant them, or send them to someone like Oikos tree crops to be trialed. In Chinese and Japanese cultures ginkgo nuts are seen as symbols of hope and longevity. A. Studying sex-switching in predominately female ginkgo trees is much more difficult than examining the phenomenon in male ginkgo. Most people in North America have no idea that the Ginkgo tree makes edible nuts, as most Ginkgo trees in North America are clones of male Ginkgo trees. Remove the container or wrapping around the roots of the tree. Yes, they are edible, but the fruits of the female ginkgo tree have a distinctive, unfriendly smell. Thanks! When young, female ginkgos—the seed-producing kind—are impossible to tell apart from male trees. Which is no surprise why it drives neighbors in urban settings mad. Fruit Trees > Nut Trees > Ginkgo Tree > Ginkgo - Grafted Female This tree is used extensively as a landscape tree due to its picturesque, unusual shaped crown and autumn coloured foliage. But there is a problem: This maiden is an awful slob. It sounds refined, doesn't it? One of the most interesting ginkgo tree facts is that urban planners only use male ginkgo trees for ornamental growth and landscaping. Exposed fruit flesh, ... People who harvest ginkgo fruits would be wise to wear rubber gloves. One woman said the smell is almost unbearable. I only know of two ways to stop the production of the stinky fruit pods. The trees become large making them ideal shade trees. The problematic "fruit" is about the size of a cherry tomato. Or maybe the male ginkgo tree(s) nearby that is needed for fertilization got cut down, and there is no pollen to fertilize the flowers on your tree. Females produce fruit that contains one large seed. Size: 35’ to 50’ is common for many Ginkgoes. The acids in gingko fruit are similar to urushiol, the skin irritant found in poison ivy and poison oak. Only male ginkgo’s are used, however, because females produce the foul-smelling fruit. (Howard Garrett / Special Contributor) Few problems. Eugene Zelenko, GFDL via Wikimedia Commons. Since you say your tree stopped bearing fruit, I assume that in the past it was bearing. Ginkgo trees are rare enough around here to be kinda special. 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