Whitethorn Acacia, Acacia constricta

Whitethorn Acacia, Acacia constricta

Exposure: Full Sun

Water: Rainwater

Mature Size: (H x W): 10’ x 10’

Blooming Season: Spring

Flower Color: Yellow

Region: All parts of the Greater Albuquerque area except the East Mountains

A member of the pea family, the Whitethorn Acacia is long-lived and able to survive only on rainwater in the Albuquerque area. It becomes either a large shrub or small tree. Naturally occurring on rocky slopes and drainage washes from Arizona to Texas at elevations from 1,500 to 6,000 feet, Whitethorn Acacia produces fragrant, yellow puffball flowers from April through June that develop into 2”-5” long capsules with clear constrictions between the beans (thus the Latin name). Branches range from dark grey to reddish-brown, with a distinctive zigzag shape and deciduous, fern-like foliage. Whitethorn Acacia is hardy to -10 degrees.

Site this plant with an understanding of mature size, and a realization that pruning will require interaction with numerous slender, white spines. With diligence, it can be pruned into a small tree that casts filtered shade. Well-adapted to life in an arid location, the Whitethorn Acacia will not produce leaves or flowers during drought. It’s a great plant for wildlife, as the flowers attract butterflies and bees and the seed pods are favored by quail.

This versatile plant, whether trained as a small tree or allowed to grow naturally as part of a low-maintenance buffer, asks for little and gives much. Select it for any of its numerous positive qualities, including its showy flowers, whimsical form, and excellent drought tolerance.

Golden Currant, Ribes aureum

Golden Currant, Ribes aureum

Exposure:

Full Sun, Part Shade

Water: Medium+

Mature Size (H x W): 6’ x 6’

Blooming Season: Spring

Flower Color: Yellow

Region: All areas of the greater Albuquerque area

As the seasons begin to change and the signs of Spring appear in the landscape, be on the lookout for a remarkable shrub with small, fragrant yellow flowers: the Golden Currant. A native to New Mexico moisture catchments at elevations from 2,500 to 8,000 feet, this plant is suitable for many Albuquerque landscape situations if sited and cared for properly.

A standout in terms of multi-season interest, fragrance and wildlife garden value, Ribes aureum has few botanical peers. In late Spring, five-petaled flowers - with a scent said to resemble the aroma of cloves or vanilla - attracts hummingbirds and monarch butterflies. The flowers develop into edible currants, a favorite of birds, which by June will mature from a red color to deep blue. Small green leaves turn a bright red in autumn before falling.

Tips for success: Golden Current may succeed in sunny or shaded locations, but will require less irrigation (link to new Efficient Irrigation Consultation tab) in lower elevations if sited in at least partial shade. However, it is likely to fruit most heavily in sunnier locations. Golden Current is adaptable to a wide range of soil types, but is not tolerant of salt. It also benefits from a substantial layer of organic mulch for moisture retention. Water every few weeks in summer. It may try to spread via suckers so be careful when choosing a location.

A useful specimen in any edible or wildlife garden, Ribes aureum is also suitable for the edge of a rain garden or beneath a shade tree. Grow it for its ornamental properties or simply for the fruit, which can be eaten raw or used in juices, jams or pies.

Pointleaf Manzanita, Arctostaphylos pungens

Pointleaf Manzanita, Arctostaphylos pungens

Full Sun, Part Shade
Low Water

Mature Size (H x W): 3-6’X 3-6’
Blooming Season: Early Spring
Flower Color: White

Region: New Mexico

A dramatic member of the Heath family native to New Mexico, the Pointleaf Manzanita is one of the few true broad-leafed evergreens that can handle the challenges of our cold, dry climate.  It’s found in open pine forests and piñon-juniper woodlands, from 3000’ to 8000’ elevation, with a native range from California to Nevada to Texas.  Hardy to at least -20 degrees.  Tolerant of some alkalinity, and of soils ranging from sand to clay.  Birds love the summer display of pea-sized bronze-colored fruits, which follow clusters of urn-shaped soft pink flowers.  This eye-catching native also attracts hummingbirds, butterflies and bees.  This plant can stand alone as a specimen or be clustered with other evergreens as part of a hedge or screen.  Its exfoliating mahogany-colored bark and matte green leaves lend contrast when planted near sage or blue juniper foliage.

 

Tips for success with this sometimes-challenging plant: Start with small plants, and make sure to choose a good long-term location, as Manzanitas don’t like to be transplanted.  If you plan to highlight the Pointleaf Manzanita’s sinewy structure, begin pruning up at a young age to develop an open structure, since they tolerate pruning of mature branches poorly.  This plant should be watered deeply every 2 weeks in summer and monthly for the rest of the year.

 

The only thing missing with this wonderful shrub may be easy availability, so be sure to mention to your local garden center that you’re interested!  North America boasts around 60 plants in the Arctostaphylos genus, and numerous cultivars are available, so also keep an eye open for the Pointleaf Manzanita’s botanical relatives during your travels!

Arizona Rosewood, Vauquelinia californica

Arizona Rosewood, Vauquelinia californica

Full Sun, Part Shade
Low Water

Mature Size: 12’X 10’
Blooming Season: Summer
Flower Color: White

Arizona Rosewood is a handsome large shrub at its best in open windy spaces where evergreen wind protection is especially welcome. Extreme exposures seem to increase its density and, unlike most broadleaf evergreens, its foliage stays crisp and attractive through heat and cold. Lacy umbels of small white flowers crown Rosewood in summer, turning a deep cocoa brown and persisting well into winter. This is a useful native rose with no off season.

Upright Rosemary, Rosmarinus officinalis “arp”

Upright Rosemary, Rosmarinus officinalis “arp”

Full Sun, Part Shade
Low Water

Mature Size: 6’X 6’
Blooming Season: Summer
Flower Color: Light Blue

Known primarily as an evergreen shrub, Rosemary is a bushy plant featuring stiff upright stems and soft blue flowers in summer. Rosemary officinalis “Arp” has proven itself to be a cold hardy selection, extending its use into New Mexico’s higher elevations. A great choice for hot walls and corners and other areas that get intense reflected heat. Plant in combination with other heat-loving plants like Zauschneria californica (Hummingbird Plant), Lavandula and Calylophus (Sundrops).

Cowania Cliffrose, Purshia syn

Cowania Cliffrose, Purshia syn

Full Sun, Part Shade
Low Water

Mature Size: 8’X 6’
Blooming Season: Summer
Flower Color: Yellow

Cliffrose makes an excellent companion for perennials because its open-branched form casts light shade. Its irregular shape lends a native touch to landscapes which is appropriate since this plant is a New Mexico native. Fragrant flowers cover the branches in early summer, a few of which remain virtually all summer long. Feathery plumes form in mid-summer and persist into winter (consequently, Cliffrose is often mistaken for Apache Plume). It can handle the hottest south- and west-facing garden locations.