Showing posts with label Yellowwood. Show all posts
Showing posts with label Yellowwood. Show all posts

Wednesday, August 31, 2022

Select A Shade Tree For Your Yard

Why not plant the best! The average person will likely a dozen or less trees. Many homeowners choose to buy a fast-growing tree. But, in the long run, in 25-30 years, you will likely pay the price for the fast growth. The speedy trees are generally weak-wooded and branches can break in ice and storms packing high winds. They become hazard trees. Don’t plant a fast growing tree within 50 feet of your home. Below ground their roots will grow into sewer and water lines. All trees listed are hardy in USDA hardiness zones 5-9.

Moderate growing trees (50 feet and higher):

Hybrid Freeman Maples (Acer freemanii)

Red Maple (Acer rubrum) 'Red Sunset', 'October Glory'

Sugar Maple (Acer saccharum) 'Green Mountain'

Ohio Buckeye (Aesculus glabra)

Ginkgo (Ginkgo biloba) (select male clones only)

Thornless Honeylocust (Gleditsia triacanthos var. inermis)

Kentucky Coffeetree (Gymnocladus dioica) 'Espresso'

Sweetgum (Liquidambar styraciflua) 'Happidaze', 'Slender Silhouette'

Tuliptree (Liriodendron tulipifera

Black gum, tupelo (Nyssa sylvatica) 'Green Gable', 'Wildfire', 'Red Rage'

London Planetree (Platanus x acerfolia) 'Columbia' 

Shingle Oak (Quercus imbricaria)

Willow oak (Quercus phellos)

English Oak (Quercus robur)

American Elm (Ulmus americana) 'Washington', 'Princeton', 'Jefferson'

Japanese zelkova (Zelkova serrata) 'Murashino', 'Green Vase'


Medium Sized Shade Trees (35-50 feet) 

Trident maple (Acer buergerianum)

River birch (Betula nigra) -'Heritage', 'Duraheat' 

European Hornbeam (Carpinus betulus)

Yellowwood (Cladrastis kentukea)

Crape myrtle (tree forms) (Lagerstroemia x)*

Hophornbeam (Ostrya virginiana)**

Live oak (Quercus virginiana)*

Japanese pagoda tree (Styphnolobium japonica)

Basswood, American linden (Tilia americana

Little leaf Linden (Tilia cordata

Lacebark elm (Ulmus parvifolia) 'Athena', 'Bosque', 'Allee'


*hardy in Southern U.S. (zones 7-10)

Editor's note: all ash species (Fraxinus spp.) have been delisted because of tree's susceptibility to Emerald Ash Borer.




Tuesday, April 30, 2019

American Yellowwood


May-June flowering tree
American yellowwood (Cladrastis kentukea), a member of the pea family (Fabaceae), is native to southeastern U.S. All other Cladrastis species are indigenous to Asia. Yellowwood is a beautiful medium-sized (35-45 feet) high tree with a broad crown, narrow profile, and upright branching.

Their pinnate compound leaves are alternately arranged. Each compound leaf is comprised 7-11 leaflets borne on a slender, green, 7-9 inches (20-30-cm) long rachis.

Dainty drooping panicles, almost wisteria-like, drip from the tips of branches in May or June, depending on regional location. The fragrant white-and-yellow pea-flowers are seldom borne on young trees and may take upwards of 10 years to bloom the first time. 
Yellowwood tends to be alternate-year bearing (i.e., bloom heavily one year, with little or no flowering the following year). Clusters of flattened green pea pods soon followed; each pod is 2-3 inch (10 cm) long and turns papery brown in autumn. Fall leaf color is brilliant yellow. The tree's light gray smooth bark, similar in appearance to beech (Fagus spp.), is an attractive four- season asset.

Yellowwood prefers a rich, deep, well-drained soil along with modest summer moisture. Leaves are subject to chlorosis (yellowing) in alkaline soils (pH above 7.2). This tap-rooted tree is drought tolerant within 2 years after planting. Yellowwood is not a good choice as a street tree as its surface roots may eventually push up sidewalks.

Narrow branch angles may result in limb trunked. When young, yellowwood needs to be correctively pruned to encourage wider branch angles and prevent bark inclusions. The cut branches tend to “bleed” sap excessively if pruned in winter.

Pests and diseases on yellowwood are rare, but the tree is susceptible to verticillium wilt. This thin bark tree is unfortunately subject to improper damage by line trimmers, mowers and other equipment, as well as sunscald over winter if young branches are left unshaded.