If anyone asks me what is on my list of succulent favorites, Santa-rita prickly pear would be near the top.

Santa-rita prickly pear

Santa-rita prickly pear with new pads.

This beautiful prickly pear is also often referred to as ‘purple prickly pear’.

I love how the its gray/blue pads become gradually tinged with purple as the temperatures get cold.

To learn more about this particular prickly pear and why you’ll want to plant one in your garden, check out my latest article for Houzz.com…  

 
 

Architects, interior designers, and more ∨

Use the help of top home decorators to select matching bedside tables and a new lamp shade for your own bedroom design.
Find a wall shelf, customizable closet organization and stylish furnishings to whip your closet into shape.

I hope you enjoy my latest plant article for Houzz.  I’ve been working on profiling plants that thrive in the desert southwest.

Stay tuned later this month for another great plant!  

Every year as Christmas approaches and most of my plants have gone to sleep for the winter, my favorite shrub is just getting started…

valentine bush

It begins with small buds appearing along each branch.

valentine bush

By mid-January, the buds have burst open, exposing their crimson centers.

 red flowers

By Valentine’s Day, my shrubs are absolutely covered in masses of red flowers.

Wonder what this shrub is called?

“Valentine”

(Eremophila maculata ‘Valentine’)

You can find out more about my favorite shrub and what it looks like when not in bloom in my latest article for Houzz

 

Kitchen ideas, bathroom ideas, and more ∨

From designer seating and office desks to message boards and credenza, create your dream home office.
Light up your living spaces with recessed lights, designer chandeliers or even a row of pendant lights.

 

 

Yesterday, I showed you a photo of a citrus tree that I came upon during a landscape consultation.  

landscape consultation

I mentioned that there was more then one problem affecting this tree.  There are actually two large problems and one small problem.

Problem #1: Look at the area near the trunk.  Notice a little green shoot coming up from a small citrus root?

This innocent-looking little sucker can cause a lot of problems if allowed to grow.  The reason for this is that citrus trees are grafted onto a vigorous rootstock.

Basically, the top of a citrus tree and the roots come from different plants.  Citrus trees we enjoy in our landscape don’t have a particularly strong root system.  So, they are grafted onto a thorny, citrus tree that has vigorous roots and sour fruit.

landscape consultation

Occasionally, small suckers from the thorny, citrus tree start to grow up from the roots or the base of the trunk below the bud union.  The bud union is a bulge around the lower part of the tree, about a foot above the ground.  Any suckers that originate from below the bud union should be removed, because if allowed to grow – the thorny citrus tree will grow and take over.

Now, back to our original picture for our second problem…

landscape consultation

Problem #2: Look closely at the soil and you can see signs of shallow irrigation. How can you tell? Look at the small citrus roots criss crossing out from the tree.  In a properly watered citrus tree, you shouldn’t see the roots at all.

This indicates that when the tree is irrigated, that the water is not turned on long enough to penetrate to the recommended 3 ft. depth.

When I pointed this out to the homeowner, she indicated that if the water is turned for too long, that it runs out from the basin.

There are two solutions for this problem.

 Elevate the sides of the basin to at least 6 inches high and allow to fill with water.  Next, check to see how deeply you have watered by taking a long, narrow stick or piece of rebar and push it into the wet soil.  It should go down fairly easily to the point where the water permeates.  Pull it back out and you will get a good idea of how much more or less water you will need.

– If after trying the first solution and you still haven’t hit the recommended 3 ft. depth, then try this trick – water in the morning, filling up the basin.  Allow the water to sink and fill the basin again later in the day.  This should help you achieve the right depth.

The smaller problem is really nothing to be overly concerned about…

Orange Dog Caterpillar

If you look closely, some of the leaves have ragged edges and holes.  The damage is caused by the Orange Dog Caterpillar.  This caterpillar appears in the summer months and resemble ‘bird poop’ which makes them hard to spot.  

These caterpillars will turn into the beautiful Giant Swallowtail butterfly.  Mature citrus trees can usually handle the damage from the caterpillars, so in most cases, the best thing to do is nothing.

For additional resources for raising citrus in the Valley of the Sun and other areas throughout the Southwest, check out this helpful link.

Do you have citrus trees in your landscape?  Which kinds?  

Southwest landscapes are suffering from a widespread malady that I like to refer to as ‘poodle-pruning’.  

Beautiful, flowering shrubs are reduced to round ‘blobs’ by over-zealous homeowners and landscapers.  

For those of you who have read my blog for a while, you probably know that over-pruning flowering shrubs is a huge pet peeve of mine.

Over the years, I have seen many examples of over-pruning and in some rather interesting shapes.  However, last week I saw an example of pruning that caused me to stop my truck in the middle of a busy parking lot so I could take a photo.

Texas Sage shrubs

I don’t think that I have EVER seen such precise pruning before.  I wouldn’t be surprised if the landscaper who did this had a ‘level’ with him to create these precise lines on these Texas Sage shrubs.

Of course, I have seen flowering shrubs pruned into other shapes in my travels around the Southwest…

Texas Ranger shrubs

Here is an example of perfectly formed ‘cupcake’ Texas Ranger shrubs.

over-pruning flowering shrubs

I think these sage shrubs look like a lumpy cake, don’t you?

over-pruning flowering shrubs

The owners of this property must be fans of modern art, which is what these sage shrubs remind me of.

But for me, I would rather see these flowering shrubs rescued from the overzealous pruning epidemic.  

over-pruning flowering shrubs

I think that they look much nicer when pruned no more then twice a year.

Now, is not the time to be pruning your Sage shrubs (Leucophyllum species).  Wait until the danger of frost is over, in late winter or early spring before pruning.

For more guidelines on pruning, click here.  

'Rio Bravo' sage (Leucophyllum langmaniae 'Rio Bravo')

I prune my ‘Rio Bravo’ sage (Leucophyllum langmaniae ‘Rio Bravo’) shrubs once a year in March.

I then let them grow throughout the year and they help to screen out the bare wall.  I also get a fabulous floral display off an on throughout the warm months of the year.  

over-pruning flowering shrubs

I am certain that the landscaper who did this pruning is very proud of their work and I admire their attention to detail.

But, I would much rather see these flowering shrubs maintained correctly with just a minimum of pruning, wouldn’t you?

over-pruning flowering shrubs

Welcome to the second edition of “AZ Plant Lady  House Calls.  

Earlier this month, I shared with you a landscape dilemma that a homeowner needed help with.  I was able to help her find a solution that would introduce color and herbs to a sunny corner of her garden. 

Well, this same homeowner had another problem area.

Solution For a Shady Spot

Solution For a Shady Spot

This shady area lies next to her sliding glass door and she has had a tough time getting anything to grow in this area.

You can see some straggly Vinca minor and a raised container growing a few weeds.  I have rarely seen nice-looking Vinca minor growing in our area – so it is not a plant I recommend.

The homeowner wanted a plant for her container that would flourish along with a flowering groundcover.

What would you do in this area?

Believe it or not, it can be hard to find a plant that can handle our hot, dry temperatures that can also do well in shady areas.  But, there are a few.

Solution For a Shady Spot

Solution For a Shady Spot

Recommendation: Purchase an orange-colored container to add some color to this area and plant a Mother-in-law’s Tongue (Sanseveria trifasciata) in the container.

For an extra decorative touch, you can add black pebbles on the top of the planting soil.

This tropical plant will add height and texture and is very easy to grow.  *Protect from freezing temperatures by bringing them indoors.

Years ago, I worked for a golf course community that had large containers in full shade by the front doors of the clubhouse.  After trying many different kinds of plants – this was the one that did the best.

Mexican Heather (Cuphea hyssopifolia)

Around the base of the raised container, I recommended planting 5 Mexican Heather (Cuphea hyssopifolia).

These do great in light shade and bloom off and on all year.  They grow well in zones 9 – 11.

Solution For a Shady Spot

The leaves are small and so are the flowers on this groundcover that grows approximately 1 foot tall and 2 feet wide.

The purple flowers will provide great contrast to the new orange container.

Both the Mother-in-law’s Tongue and Mexican Heather are low-maintenance and will flourish in this shady spot.

So, what do you think of this solution? Do you have a shady area where you have a hard time growing anything?

I hope you enjoyed the latest edition of “AZ Plant Lady Virtual House Call”.  I will be posting more in the future in the hopes that I can help you with an issue you may be facing in your own garden.

Welcome to the second edition of “AZ Plant Lady Drive By: What’s Wrong With My Landscape”.

Where you able to figure out what was wrong with the landscape, below?

wrong with the landscape

I got some great answers and they were all right, BUT only one person noticed one problem that others hadn’t.

Here are a few of the answers I received on Facebook:

“Huge needle sharp plants next to a walkway.”

“The century plants (agave) need more sun.”

“Agaves planted too close to walkway, tree planted too close to house, poor pruning of Bush between houses. Looks like the Bush was trimmed with a chain saw. The mixture of desert and green landscaping is a bit much.”

These were great comments and were correct, but there was one other problem that only one of my readers found. Here is her comment:

“Those agaves are going to cause a lot of trouble.  They will multiply and take over the tiny area they are planted in.”

1. First of all, you should not plant prickly agave near areas where people walk – like along the driveway or an entryway.  Getting pricked by an agave hurts – I have had this happen countless times to me while in the field and once or twice at home.

2. The choice of agave in this landscape is a poor one. The agave in this landscape are called Agave americana and are perhaps the most commonly found agave that I see in landscapes.

While these agave are attractive, they do have a characteristic that makes them high-maintenance – they produce lots of baby agave (also called volunteers or pups).

wrong with the landscape

These volunteers are prolific and take a lot of time to cut them out.  The agave group, above, started out as one Agave americana that then reproduced. The majority of agave pups were removed, but six still remain.

This homeowner has kept up with removing most of the volunteers – but it is hard work.

prickly agave

Removing the volunteers means getting up close to these prickly agave and it isn’t easy to remove them. You have to get your shovel down into the soil a few inches to cut off the volunteer from the parent plant.

Homeowners usually allow the volunteers to grow, which over time, creates a somewhat unattractive mass of agave.  OR they remove them and plant them elsewhere in their landscape, which just increases the problem because those replanted agave babies will start making their own babies.

Agave americana

Now, I think Agave americana are beautiful (as does the little hummingbird perched on this one).   But, I wouldn’t plant one in my garden.

So, is there a solution for homeowners like me who love how agave look, but don’t want lots of babies to take care of?

Yes!

There are many different species of agave that don’t produce volunteers, or not too many.

Here are a few of my favorites that will make a good substitution for Agave americana:

Agave bovicornuta

Cow’s Horn Agave (Agave bovicornuta) is a beautiful agave and does not produce any volunteers.

They will grow approximately 4 feet wide and tall.  Plant in an area that receives filtered sun or afternoon shade.  This agave is hardy to zone 9.

'Octopus Agave'

You can see why this agave is called ‘Octopus Agave’ (Agave vilmorniana).  It does mimic that tentacles of an octopus.

This agave will not produce volunteers either.  It does best in filtered shade or in an area that will receive afternoon shade.  Hardy to zone 9.

Weber's Agave (Agave weberi)

Weber’s Agave (Agave weberi) is my favorite large agave.  I am using several in a new landscape area that I designed alongside a golf course.

This agave grow 5 feet tall and 6 – 10 feet wide.  I does great in full sun.  It does produce the occasional volunteer, but not many.  Hardy to zone 7.

I hope you have enjoyed this edition of “AZ Plant Lady Drive By”.  Thank you all for your comments.  I’ll keep my eyes and camera ready for other “landscape no-no’s” to show you.

My goal is not to poke fun at those homeowners who have made mistakes.  I want to help you to avoid making the same mistakes in your own landscape.

**IF YOU HAVE A PHOTO OF A ‘LANDSCAPE NO-NO’, PLEASE FEEL FREE TO SEND IT TO ME AT arizonaplantlady(at)gmail(dot)com

AZ Plant Lady Drive By: What’s Wrong With This Landscape?

The cold weather has arrived in my neck of the woods with even colder temperatures on their way later this week.  

When temperatures dip below 32 degrees, you will find me wearing warm socks, slippers, a sweater, and cardigan when I’m indoors.  But, besides me – frost-tender plants are also affected by the cold temperatures.

Have you ever wondered why your plant’s leaves turn brown and crispy after a freeze?  Well, ice crystals form on the top of the leaves, which ‘sucks’ out the moisture from the leaf, leaving it brown and crispy.

Frost Protection

Many plants handle cold weather just fine and have no problems with frost.  However, if you have frost-tender plants, such as bougainvillea, lantana, or yellow bells, you face a choice; Do you leave them unprotected from freezing temperatures and live with the unattractive frost-damaged growth?  Or do you protect them when temperatures dip below freezing?

Either choice is fine and is a matter of personal preference.  Frost-damaged growth can be pruned back once the last frost of the season has passed (early March where I live).  But, if you don’t want to live with brown, crispy plants for a few months, then protecting your plants when temps dip below freezing is necessary.

In the daytime, the sun shines on soil, warming it.  At night, the soil releases the warmth from the ground.  When you cover your plants – the heat is captured keeping your plants warmer.

Frost Protection

Plants aren’t fussy about what type of covering you use (with one exception); old sheets and towels are usually on hand and are easy to use.  Burlap and newspaper are also useful as coverings.  Cover your frost-tender plants in the evening, making sure that there aren’t any gaps where the heat can escape.  You can use large rocks or clothespins to secure them in place.  In the day, remove the covers once temperatures have risen above freezing, and allow the sun to warm the soil again.  

Frost Protection

Don’t keep the coverings on your plants for more than two days in a row without removing them in the day since this can cause water to become trapped underneath, leading to fungal diseases and can cause plants to produce new growth that can be easily damaged by cold.

The best type of frost protection is frost cloth, which is a breathable fabric because it can ‘breathe,’ you can leave the frost cloth on your plants for a longer period.  But, use it only when there is a threat of frost.  After three days, uncover your plants during the day to allow the sun to reach your plants.

frost damage Protection

My neighbor made things worse by using plastic as a covering for his citrus trees.

One type of covering that you shouldn’t use is plastic, which transfers the cold to your plants and damages leaves when it touches the plant itself.

In my garden, I only protect my frost-tender trailing lantana which is in a high-profile area next to my entry.  The rest of my frost-tender plants, I leave alone until it is time to prune back their frost-damaged growth in spring.

So whether you cover your plants or not, the choice is yours 🙂

For more information on frost protection, check out the following link from the University of Arizona: Frost Protection

How to Protect Plants From Frost

The ‘Torch Glow’ Bougainvillea Dilemma

In my last post, I showed you a photo of a “landscape no-no” and challenged you to guess what the problem was.

Were you able to guess what is wrong with this planting?

I gave a hint that the plant in the middle is ‘Torch Glow’ Bougainvillea.

Well, I am happy to report that most of you were right about the problem.

Torch Glow Bougainvillea as a small shrub in a narrow location

Size Matters: ‘Torch Glow’ Bougainvillea

You see, ‘Torch Glow’ Bougainvillea (or any bougainvillea) for that matter, is too large to be planted in such a small area.

Although this bougainvillea shrub is small now, it will soon grow very big…

Torch Glow Bougainvillea as a young plant

I planted the ‘Torch Glow’ Bougainvillea, above, in my father-in-law’s back garden. At the time I took this photo – it was less then 2 years old.

Personally, I like this variety of Bougainvillea – it has an unusual shape compared to other types of Bougainvillea and produces less litter. It does grow very fast and will soon outgrow a small area.  At maturity, it can reach heights of 8 feet and 4 feet wide.

So, back to the original planting in the first photo.  The problem that will soon occur is that the ‘Torch Glow’ Bougainvillea will grow wider and overhang the pathway to the entry.

Of course, at first, the homeowner will attempt to keep the Bougainvillea pruned back – but he would be fighting a losing battle.  This shrub grows too big.

Did I also mention that this particular plant has THORNS?

You never want to put any type of plant or tree that has thorns, next to an area where people walk.  No one likes to get stuck by a thorn.

bush Rosemary

The Rosemary Predicament

This homeowner also had another landscape problem directly across the pathway from the bougainvillea…

He has a bush Rosemary planted in a tiny area that was 3 inches wide.

As you can see, he was already busy pruning it to keep it from hanging over the pathway.

Soon, the base of the plant will become more woody with less leaves as it grows, which will make it very unattractive.

In addition, the small amount of soil, will affect the ultimate health of the rosemary as well. It might become difficult to irrigate with a tiny root space as well.

The Lesson Learned: Research and Plan

**So what is the lesson learned from this “landscape no-no”?

Take a few minutes to research the plants you select before you plant them (don’t always rely on your landscaper’s advice – check for yourself).  Make sure the plants will fit that particular area once they reach their mature size.

I hope this will help you to avoid a similar mistake in the future in your garden.

***********************

I am still patiently (not really) waiting to plant my fall vegetable garden.  We are buying compost and manure this weekend to replenish the existing soil in the gardens and I hope to have everything planted soon.

I promise to keep you updated 🙂

For quite some time, I’ve been considering writing this post. I’ve hesitated due to the overwhelming affection people have for ficus trees (Ficus nitida). While the benefits of planting ficus trees are apparent. They have lush beauty and dense shade that are particularly valuable in desert environments. There are a few considerations to bear in mind before incorporating them into your landscape.

At first, the benefits of planting a Ficus tree are obvious. They are lush, beautiful and provide dense shade, which is sometimes scarce in the desert.

The Pros and Cons of Ficus Nitida Trees: What You Need to Know

So what’s the problem with having a Ficus tree? Well, there are a couple of things that you should be aware of before you plant a Ficus tree.

One of the primary challenges with Ficus trees is their vulnerability to frost damage. This is especially concerning in low desert regions when temperatures drop below freezing. This concern becomes even more pronounced during stretches of consecutive freezing days.

Frost-Damaged Ficus nitida with extensive browning and damage

Photo: Frost-Damaged Ficus nitida

This past winter, we experienced a three-day period of temperatures in the low 20s. The impact on local Ficus trees was unmistakable. A mere drive through any neighborhood allowed me to distinguish, even from a distance, who had Ficus trees and who did not. The extensive presence of ‘brown’ trees gave it away.

After the return of warmer weather, many Ficus trees sported trimmed branches. This results in a shorter appearance due to frost damage mitigation (see image below).

Ficus tree that had frost damaged with larger branches removed.

Photo:Ficus tree that had frost damaged branches removed.

Growth Size and Control

The second challenge stems from insufficient research regarding the potential size of Ficus trees. Individuals often find themselves ill-prepared when the charming shade tree they planted rapidly becomes an overwhelming presence. Trees often seem to engulf their homes.

Young Ficus Tree

Photo: Young Ficus Tree

They are soon caught unprepared when the pretty, shade tree that they planted soon grows so large that it almost seems like it is ‘eating’ up the house….

Mature Ficus Tree in front of suburban home

Photo: Mature Ficus Tree

What to Consider When Planting Ficus Trees

If your heart is set on having a Ficus tree grace your garden, go ahead and acquire one. Just remember that some winters might result in frost damage, temporarily affecting the tree’s appearance until new branches emerge. To ensure a successful experience with Ficus trees, keep the following points in mind:

  1. Proper Placement: Exercise caution when choosing a planting spot. Allow ample space for the tree to reach its mature dimensions without infringing on your house. Additionally, avoid planting near patios and pools, as the tree’s shallow roots can pose problems with insufficient watering. Ficus trees can attain heights of 30 to 50 feet and widths of 40 feet.
  2. Alternatives to Consider: While sissoo trees (Dalbergia sissoo) might appear to be an attractive alternative to Ficus, they also come with their own set of considerations.
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Sissoo Trees as an Alternative

Sissoo trees, resembling Ficus trees in appearance, exhibit greater frost tolerance. Despite their appealing features, it’s crucial to exercise caution when integrating sissoo trees into your landscape.

Some people look to sissoo trees as an alternative to ficus – BUT, this isn’t advisable either.

Sissoo Trees look more like a traditional northern park tree

Photo: Sissoo Tree

The sissoo tree (Dalbergia sissoo) is similar in appearance to the ficus tree. They do however have greater tolerance to frost.

Like ficus trees, sissoo trees do grow quite large but I no longer recommend them for average size residential landscapes. The photo of the tree above was taken four years after it was planted from a 15-gallon container. It rapidly grew even larger.  This tree made it’s debut in the Phoenix area about 15 years ago. It has become quite popular for its lush green beauty.

While sissoo trees flourish in larger outdoor areas such as parks due to their enhanced frost resilience, they present potential challenges for average-sized residential landscapes. Despite their initial popularity for their lush green beauty, their invasive root systems can wreak havoc on sidewalks, patios, pools, and block walls. Moreover, their eventual size can dwarf the landscapes they were intended to enhance.

Sissoo Trees can grow very large.

Photo: 3 Sissoo Trees

Careful Planning is the Best Approach for Ficus or Sissoo Tree Placement

The allure of Ficus nitida trees is undeniable, but careful planning and consideration are necessary to ensure a harmonious coexistence between these magnificent trees and your landscape. Understanding their susceptibility to frost damage and their potential for significant growth is vital for making informed decisions.

While sissoo trees can be a reasonable alternative, they too come with their own set of challenges that need to be weighed carefully. Ultimately, choosing the right tree for your outdoor space involves a blend of appreciation for aesthetics and awareness of practicality.

One of the things that I love about gardening in the desert is how many beautiful plants that can not just survive our arid climate, but thrive in it.  

Besides our native desert plants, many tropical plants also do very well here due to our relatively mild winter in our semi-tropical climate.  Quite a few of these plants are native to Mexico.

So far in our lesser-known plant spotlight, we have highlighted two flowering shrubs that will add interest to your garden…..Valentine and Chaparral Sage.

So now for our next featured plant.  

If you love the shape of water as it cascades from a fountain and the bright colors of coral, then you definitely want to include coral fountain (Russelia equisetiformis) in your garden.

tropical plants

Aren’t the flowers just so beautiful?

Although this beautiful plant is native to Mexico, it does exceptionally well in our arid climate – in fact, the coral fountain in the photos is planted in sandy soil.  The leaves are hard to see and are small and scale-like in appearance.

tropical plants

Here are some reasons that you should definitely try coral fountain out in your garden:

– Striking coral colored flowers continually grace this shrub during the warm months of the year.

– It can reach a mature size of 4 ft. high and 4 – 6 ft. wide.

– Hummingbirds will be in heaven if you plant this pretty flowering shrub.

– Coral fountain is tolerant of a variety of conditions.  Well-drained soils or wet soils, arid climates or tropical climates and handles full sun or filtered shade.

– It grows quickly, so you do not have to wait a long time for its showy display of flowers.

– Because of its tropical origins, it is not cold hardy.  It does suffer frost damage when temperatures dip below 32 degrees F.  You can help to protect coral fountain from frost by covering it when temperatures fall.

Because our soils have so little organic matter, coral fountain does best when given some fertilizer.  I would recommend using a slow-release fertilizer and apply in the spring and fall months.

Try planting it alongside yellow or purple flowering plants for great color contrast.

The cascading form of coral fountain looks beautiful when used next to a water feature or in a container.  You could also use it a raised bed where the flower plumes will gracefully fall over the wall.

Have I tempted you enough to try this plant?

Here is another look…..

tropical plants

I took all of the photos at The Living Desert Wildlife and Botanical Park in Palm Desert, CA.  I visited there with my sister last March.

Why didn’t I take a picture of my own coral fountain?  Well, I must admit that I do not have one in my garden.

Okay, so you may well be asking why do I not have a plant that I highly recommend in my garden?  Well, that is an excellent question, and I must confess that I do not have a really great answer for you.

I could say that my garden is over 11 years old and already full of plants.

I could then add that if I planted every kind of plant that I loved, that all sense of design in my garden would go out the door because I would have a mish-mash of too many different plants, which is not pleasing to the eye from a design standpoint.

But, those excuses sound kind of pitiful to my own ears.  Every time that I drive to Double S Farms (my mother and sister’s home), I pass by a beautifully designed garden which features a coral fountain shrub on the corner.  I always look for this plant, and I am still admiring it.

And so, I must admit the truth to myself…… I would love to have this plant in my own garden and will be on the lookout for one the next time I visit the nursery. UPDATE: I now have three of the beautiful plants, growing underneath the filtered shade of my palo verde tree.