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Tree of the Month: ‘Shamrock®’ Littleleaf Linden

By Len Phillips, ASLA Emeritus


 


 


Botanical Name: Tilia cordata ‘Bailey’


Trade Name: ‘Shamrock®’ Littleleaf Linden


Parentage: Selection from Bailey Nursery


Family: Tiliaceae


Height: 40 to 50 feet


Spread: 30 feet


Form: Pyramidal and symmetrical shape


Bloom Period: Late June to early July


Flower: Yellowish, fragrant, pendulous


Fruit: 1/3-inch nutlet


Summer Foliage: Dark green, shiny, larger than Greenspire Linden


Autumn Foliage: Yellow in the autumn


Winter Color: Bark provides winter interest


Bark: Gray brown, uniform branching structure


Habitat: Native to Europe


Culture: Likes well drained soil, any pH, full sun to partial shade, tolerates heat, drought, and air pollution


Hardiness Zone*: 4 to 8


Growth Rate: Moderate, more vigorous than Greenspire Linden


Pest Resistance: Aphids and Japanese beetles


Storm Resistance: Excellent


Salt Resistance: Excellent


Planting: Transplants easily, quick recovery


Pruning: Prune at planting and 3 years later to mature form, withstands severe pruning, may only require pruning of basal sprouts and removal of some potential crotch problems


Propagating: Budded onto T. cordata understock


Design Uses: Well suited for street tree planting


Companions: Use with ground covers such as Vinca and Pachysandra


Other Comments: Young trees reach symmetry earlier than the species


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


 


Len Phillips can be reached via e-mail at lenphillips@on-line-seminars.com.

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