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Do you enjoy winter?


I do.  Surprisingly, the desert Southwest has definite seasons and winters can get cold with temps dipping into the 20’s.  

Frost-damaged natal plum


Unfortunately, the cold temperatures can wreak havoc on our frost tender plants such as bougainvillea, lantana and yellow bells – to name a few.

Let’s face it, no one likes the sight of brown, crispy, frost-damaged plants in the landscape.  Often, our first impulse is to prune off the ugly growth – but, did you know that you can actually do more damage by pruning it off too early?


Learn what plants are most commonly affected by frost damage, when to prune and how in my latest article for Houzz.com

I hope your week is off to a great start!


Are you familiar with Texas sage, also referred to as Texas ranger?

 
If you live in the Southwest, you have undoubtedly seen these beautiful shrubs.
 
Believe it or not, these purple flowering beauties are a fuss-free plant.  
 
Unfortunately, some people over prune them…
 
 
The one on the left has been pruned into a ‘ball’ while the one on the right hasn’t been pruned as severely.
 
Want to learn more about this native shrub and how to care for it properly?  Check out my latest plant profile for Houzz.com

I love the color purple in the garden because the color, helps to visually ‘cool’ the garden.

‘Rio Bravo’ Sage (Leucophyllum langmaniae ‘Rio Bravo’)
 
Have you ever wondered how some plants handle our hot temperatures and intense sunlight?
 
Look carefully at the flowers, above.  Note the small hairs covering the petals?  They help to reflect the sun’s rays.
 
I like using large shrubs to screen the back wall of my garden, so I have quite a few ‘Rio Bravo’ sage shrubs.
 
They put on a spectacular show off and on throughout the summer when they bloom.  (Leucophyllum langmaniae) is just one species of Leucophyllum (Texas Sage).
 
Of course, if you insist on pruning your sage shrubs into round ‘blobs’ – you will never see the flower show.
 
For guidelines on how to prune your desert, flowering shrubs correctly, click here.
 


Do you like prickly cactus?  

I have a few favorites, one being santa-rita prickly pear (Opuntia violaceae var. santa rita). The color contrast of their blue-grey pads and the shades of purple are so striking in the landscape.  

This cactus makes a beautiful accent plant for the landscape. Both the pads and fruit are edible, (but you might want to remove the spines first ;-). Cold temperature and drought intensify the purple color.

Santa-rita prickly pear is native to the Southwest regions of North America. They can grow as large as 6 ft. X 6 ft., but can be pruned to maintain a smaller size.  Pruning is done carefully, by making pruning cuts at the junction where the pads connect.


Lovely yellow flowers appear in spring followed by red fruit in the summer months.  Javelina, rabbits and pack rats will sometimes eat the pads. Pack rats use the pads to make their homes.

The pads of the prickly pear are covered with clusters of 2″ spines as well as tiny spines known as glochids. Glochids are incredibly irritating to the skin and detach from the pad very easily. Their tips have a small barb, which makes them difficult to remove from your skin.  If you need to handle them, use a few layers of newspaper or a piece of carpet. Do not make the mistake of touching the pads with gloves because the glochids will attach to your gloves and render them useless, (I ruined a perfectly good pair this way). 
 
 **There are different ways to remove these small spines, including applying Elmer’s glue (letting it dry and then pulling them off), but many people have reported greater success using duct tape. 

 

 
USES: In addition to serving as an accent plant in the landscape, this prickly pear species can also be used as a screen. Some may be surprised to learn that they also make excellent container plants, just make sure they are not near any foot traffic areas. They do well in full sun or light shade in well-drained soil.
 
MAINTENANCE: Prickly pear is very low-maintenance plants. I always use tongs to pick up the pads that I have pruned, or you can use newspaper.  
 
Although they are incredibly drought-tolerant, watering once a month during the hot summer months, in the absence of rain, will be appreciated and will improve the appearance of your prickly pear. Shriveled pads indicate acute drought-stress.
 
 

Many people believe that the appearance of white, cotton-like areas on the pads is a sign of a fungal infection. However, it is caused by a small insect that secretes the white cottony mass, called cochineal scale.  Control is straightforward – simply spray off it with a strong jet of water from the hose – that’s it!

 
PROPAGATION: Prickly pear can be planted from seed, but there is a much easier way. Just cut off a pad that is at least 6 inches tall. Put the pad upright, in a shady, dry place for at least about two weeks. This allows a callus to form at the bottom.  
 
Plant with the cut end down, do not water for the first month because the bottom is susceptible to fungal infections. After the first month, water every 2 – 3 weeks until established.  If planted in the summer, provide shade until established (about three months). *I generally do not recommend planting in the winter but encourage waiting until spring when the soil warms up. 
 
If you have a large prickly pear, you can prune it, or you can start over by taking it out and cutting off some of the pads and plant them in the same place. Many of my clients have done this and been happy with the results.
 
INTERESTING HISTORICAL FACT: The Aztecs would cultivate prickly pear cactus infected with cochineal scale because the insects secrete a dark red dye with crushed. This was used to dye cloth. The Spanish exported this dye from Mexico back to Europe where it was used to dye royal garments and British military uniforms. The dye was highly valued by the Spanish, next to gold and silver. It takes 70,000 insects to produce 1 pound of dye.
 
*This is but one of many beautiful prickly pear species available to the home gardener.   Do you have a favorite species of prickly pear cactus?