Connecting Greater Phoenix gardeners with information that helps put xeriscape principles into action.

More Xeriscape Plants for Phoenix Desert Gardens

If you’ve got a bare spot in your desert landscape that’s begging for a new plant, here are some excellent plants that we’ve just added to our growing plant database.  These low-water xeriscape plants do well in our Greater Phoenix summers and, except for the Apache Plume, start blooming in the winter.

Gopher PlantGopher Plant (Euphorbia rigida) – A fun succulent with gray-green foliage and chartreuse bracts, the Gopher Plant looks great planted in a mass.  Plus, it’s a somewhat rare winter bloomer!  (Photo courtesy of the Coachella Valley Water District.)



Apache PlumeApache Plume (Fallugia paradoxa) – Named for its likeness to an Indian headress, the Apache Plume first produces white flowers in the spring, followed by pink plumes throughout the summer. (Photo courtesy of




Gray Ice PlantGray Ice Plant (Malephora crocea) – This somewhat unusual ice plant features gray-green foliage topped by striking orange to red blooms.  (Photo courtesy of




Trailing RosemaryTrailing Rosemary (Rosmarinus officinalis) – Put sun-loving Trailing Rosemary near an entry where you can appreciate its aromatic fragrance, its tiny periwinkle blooms on dark green foliage, and its use in cooking.  (Photo courtesy of Mountain Valley Growers.)




Gardening Tip: What Kind of Fertilizer Should I Use? (Part 3)

Results of 1942 Fertilizer DemonstrationIn a previous post about the importance of fertilizing, I mentioned that native and desert-adapted xeriscape plants produce their own nitrogen or have otherwise adapted to our Phoenix desert soils.  So the soil that they grow in requires no fertilizer.  Then I talked more about N-P-K values and inorganic vs. organic fertilizers.  So now…how do you choose the best fertilizer for your Phoenix desert garden?

First, let me say that when it comes to edibles — whether vegetables, fruits, or nuts — an organic fertilizer is always recommended.  I mean, you’re growing your own to get that farm-fresh taste, right?  So why ruin it by adding in the same stuff that the mass producers use to get blemish-free, nearly perfect, fast-growing, long-lasting tasteless specimens with some potentially unhealthy side benefits?

(By the way, deciding whether to use organic or inorganic fertilizer is simply a matter of personal preference.  I tend to go organic as much as possible, but some things do not respond well to organic methods.  Take killing off Bermudagrass, for example…)

That said, which organic fertilizer is best?  If you have or can get compost, that’s your best option.  It’s a complete fertilizer that adds a layer of slow-released goodness to the soil that just can’t be beat.  Fish emulsion, liquid seaweed, alfalfa meal, coffee grounds (wish I drank the stuff!), and guano are also complete fertilizers that work well.  I primarily use fish emulsion and compost, but I understand that liquid seaweed provides a little heat resistance in the summer.

If your soil just needs a boost of nitrogen (no phosphorus or potassium), try blood meal.  If it needs a shot of phosphorus (no nitrogen or potassium), use either rock phosphate or bone meal.  If it’s potassium your soil needs, stick with liquid seaweed.  Remember, though, that, unless you have a specific soil issue, using these incomplete fertilizers may require you to also add in the missing nutrients.

As for inorganic fertilizers, look for a locally manufactured product — not only because it’s good to support our local businesses, but because these guys know our soils better than any national brand can.  You can also use these products as directed.  With national brands, you may have to make some quick calculations to get the right “dose.”

Here are some quick fertilizer recommendations:

  • Citrus – Requires lots of nitrogen, so look for a complete organic fertilizer that has lots of nitrogen and smaller amounts of phosphorus and potassium.
  • Roses –  Likes lots of nitrogen and phosphorus, so try a complete organic or inorganic fertilizer with lots of nitrogen and phosphorus and a small amount of potassium.
  • Bermudagrass – Use 21-7-14 (or something with a 3-1-2 ratio) inorganic fertilizer or a thick layer of compost. (Read the article Turf’s Up:  Growing Healthy Lawns in Phoenix Desert Landscapes for more information.)
  • Container plants – Container plants lose nutrients every time they’re watered, so all container plants require monthly feedings. For edibles, choose a complete organic fertilizer.  For other plants, choose a balanced 10-10-10 or similar organic or inorganic fertilizer.  For cacti and succulents, use a 50% dilution of a balanced 10-10-10 fertilizer.

Keep in mind that these are general guidelines for otherwise healthy Phoenix desert soils.  Two nutrient deficiencies commonly found in our desert soils will require specialized treatments:  zinc (occurring most often with corn, beans, pecans, and grapes) and iron (found mostly with turfgrass, citrus, apples, peaches, and some other ornamental plants).

A final note:  many gardeners use chicken or cow manure to organically fertilize their soils.  Done right, it’s entirely safe and just as nutritious as other organic options.  But I personally think it’s gross so I don’t use it on  my edibles.  I do use it twice a year on my lawn.

So…now that you know which fertilizer to choose, how do you apply it…and when?  Part 4 covers these burning questions…and offers a handy quick reference fertilizer chart for January-June as well as a quick reference fertilizer chart for July-December.  Stay tuned…



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Gardening Tip: How to Find a Smart Landscape Professional

Using a Leaf BlowerSorry so long between posts…I’ve been tied up in the garden.  Sigh…it makes me want to hire a landscape professional!

Knowing more about desert gardening means that I want to do more and more.  But if you’re strapped for time or less than knowledgeable about desert landscape maintenance, you might want to hire the appropriate professional.  Trouble is…where do you find them?

Well, Phoenix has a boatload of people who do what we call “blow ‘n go.”  These are the guys who sweep in with jet packs on their backs and tote chainsaws for a Texas-sized massacre of your plant life.  From what I can tell, they’re either paid by how much noise they make, how much dust they blow around, or how many shapes they can form from your shrubs.  Or all three.

Wouldn’t it be nice if they focused instead on testing and fixing your irrigation system?  Or on cleaning up your trees a bit, and doing some selective pruning on your xeriscape plants?   How about if they came in and did their work without disturbing the peace…or provoking an allergic reaction?

Lucky for us, these landscape professionals DO exist here in Phoenix.  Smartscape Certified Landscapers receive training in design, renovation and maintenance of desert-adapted xeriscape plants, drip irrigation design and installation, water management and irrigation controllers, and solutions to plant problems.

You can also contact the Desert Botanical Garden for a list of Certified Desert Landscape Professionals.  These Desert Landscape School graduates have completed a minimum of seven months of intensive training in landscaping with desert-adapted plants.

With a little digging, you’re sure to find someone who cares more about helping you manage your desert landscape than about operating a power tool!



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