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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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