Ginkgo biloba Pendula Gruga’ is undoubtedly a female triploid cultivar. A good specimen tree exists is in The Botanischer Garten Grugapark, which is a municipal botanical garden located in the Grugapark at Virchowstraße 167a, Essen, North Rhine-Westphalia, Germany.  The origin cof the plant grwoing there cannot be traced exactly, but it thought to have come from a nursery that supplied the botanical garden in Mönchengladbach many years previously.
 
Description - Ginkgo biloba 'Pendula Gruga’ has very well define serrated leaves. The growth rate is 40 cm a year. It is a very pendulous cultivar, so requires some support to keep the stem straight before it can be allowed to develop a head (see picture). Once at the height required the head can be allowed to develop, It can be well branched and fairly symmetrical with decening branches. In 10 years, a tree could attain a spread of 2 m – 3m. The height is dependant on how it was trained.