Skip to main content

Trees That Please Nursery: 30 Days of Fall Foliage, Saturday November 17th.


Mexican Blue Oak

Mexican Blue Oak (Quercus Oblongifolia) is a New Mexico native evergreen or tardily deciduous tree. As its name implies, it can be recognized by its blue leaves.


Its species name, oblongifolia, refers to its oblong leaves. Mexican Blue Oak is in the white oak family so it may hybridize with other white oak species like Gambel Oak, Gray Oak, and Turbinella Oak. As an oak its fruit is an acorn.

Mexican Blue Oak is a smaller tree reaching about 15’ – 20’ tall and wide. After establishment it can add about 1’ – 1.5’ of growth annually. It has a tap root or deep root system so can be planted closer to structures than surface rooted trees like willows or mulberries.

As an evergreen, the Mexican Blue Oak does not have any change in fall foliage. Instead it retains its beautiful blue foliage through fall and winter.


Its evergreen (ever-blue leaves)
 
 
and bark on more mature specimens adds winter interest to your landscape.

 
The Mexican Blue Oak is best grown with low to regular water in well-drained soils but also tolerates clay. This Oak is hardy to USDA zone 5.

Contact Trees That Please Nursery for more information and pricing.

Written By:
Stephen Sain
Staff Plant Physiologist

Comments

Popular posts from this blog

Weed Identification: Goatheads or Stickers

Goatheads ( Tribulus terrestris ) are native to Southern Europe, Asia, Africa and Australia. Goatheads are also called stickers, sticker weed, bullhead, devil’s weed, and puncturevine. Goatheads are easily recognized by their prostrate growth form, leaves with leaflets, yellow flowers, and stickers (Goatheads). If you miss’em visually then they will stab you painfully in the fingers as you work your garden, or stick to your clothing and shoes. Goatheads are the primary reason local bicyclists must get “thorn proof” tires for riding on area trails and streets. Goatheads have prostrate stems that radiate outward from one central point. Leaves are compound with smaller leaflets. Lemon yellow flowers form along the stems and fertilized flowers form fruits.   Fruits consist of several attached structures called nutlets (Goatheads). Each nutlet is a single seed that becomes hard or woody when mature. Each seed has two sharp spines that easily penetrat

Western Soapberry Tree

The Western Soapberry tree ( Sapindus saponaria var. drummondii ) is native to New Mexico. It grows wild from Missouri, Arkansas, and Louisiana westward through Texas, Oklahoma, Kansas, Colorado, Arizona, and Mexico. The fruit of the Western Soapberry tree is a drupe. Mature fruits are translucent, amber colored, and contain a black seed. The mature fruit without the seed will produce a good lather with water and has been used as a soap substitute. Fruits persist on the trees through winter. T he Western Soapberry tree can grow 1′-2′ annually reaching 25′-30′ tall and wide making it a good sized shade tree. Fall leaf color is an attractive golden yellow. Currently, there are no improved varieties of the Western Soapberry Tree. It grows well on the alkaline soils of New Mexico and is very tolerant of heat and drought once established. This tree is rarely affected by disease or insect pests making it an ideal specimen tree for your yard or landscape. S

Weed Identification: Sand Bur

Sand Bur ( Cenchrus longispinus ) is native to North America. It has other names like sand spur, long-spined sand bur, hedgehog grass, and bur grass . Sand Bur is an annual grass usually growing with a prostrate growth form. It is similar in appearance to other grasses prior to seed formation. Individual plants may be 3’ in diameter, sometimes larger. Sand Bur is a common weed of sandy soils but also grows well elsewhere. Sand Bur will often root at stem nodes that are touching the ground. The root system of Sand Bur is shallow and fibrous making them easily pulled (when immature). Sand Bur produces a flowering spike. As seeds begin to form Sand Bur is easily recognized by its numerous sharp or burred seeds or long spines. As the burred seeds mature they are easily separated from the mother plant and their sharp spines stick to virtually anything. Sand Bur can disseminate its seeds long distances because its sharp spines will hitch a ride on skin, animal hides,