TREE OF THE MONTH Photos provided by J. Frank Schmidt & Son Co.
By Len Phillips , ASLA Emeritus
Trade Name: Presidential Gold™ Ginkgo Botanical Name: Ginkgo biloba 'The President' Parentage: Selected by Dr. Michael Dirr Family: Ginkgoaceae Year of Introduction: 2005 Height: 50 feet Spread: 40 feet Form: Strong central leader and full branching when young, broadly pyramidal at maturity Bloom Period: Early spring Flower: Male only Fruit: None, seedless Summer Foliage: Medium-green in summer Autumn Foliage: Bright yellow in fall Winter Color: Large picturesque branches Bark: Dark gray-brown with dark furrows Habitat: Eastern China Culture: Moist, sandy soil, sun Hardiness Zone*: 4 - 9 Growth Rate: Slow to moderate Pest Problems: Free of disease and pests Storm Resistance: Excellent Salt Resistance: Good to excellent Planting: Transplants easily B&B and establishes fairly easily Pruning: Prune in spring Propagating: Budded on to species understock Design Uses: Excellent specimen, excellent in lawns and gardens, has low maintenance needs Companions: Use with evergreen groundcovers Other Comments: This cultivar may set the standard among Ginkgos for its dense upright crown, suitable for CU-Structural Soil planting Available From: Difficult to find in retail nurseries, look in the largest wholesale nurseries
* For information about the USDA Hardiness Zone Map, visit www.usna.usda.gov/Hardzone/index.html
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These are the personal observations of the author, living in New England – Zone 5b. Len Phillips can be reached via email at lenphillips@on-line-seminars.com
Arbor Age / September 2011 17
