Answer: Ginkgo biloba 'Autumn Gold' has a symmetrical, upright branching form and is slow-growing to 35-50' high with a 30' spread. Ginkgo biloba 'Saratoga' has an open branched, upright habit and is slow-growing to 35-50' high with a 30' spread. Ginkgo biloba 'Princeton Sentry' has an erect growth habit, reaching 50' with a 20' spread. Hope this information is helpful.
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