And you ask, so where you been?! Yeah, I know, it’s been almost two months since I added a new post. While I have been kind of busy with other stuff, I mostly got discouraged…let me explain. You know that lovely piece I did on Dietes last month and how I thought I solved the problem I was having by adding a drip emitter to each plant? Well, not only did that not revive my Dietes, they’ve all but croaked!! Not that it’s particularly relevant but I happened to go out of town for four days in mid-August; temperatures were 103° to 106° for the period…pretty typical for August. When I got home, I noticed all three plants were virtually dead. It happened so fast, I first thought maybe they’d somehow been sabotaged (poisoned) or some HUGE dog peed on them…to death. When I became more rational I figured something else must be going on. I’ll elaborate on my latest theory momentarily.
I probably could have attached a different photo, doing a better job of isolating Simba, my African Sumac, but I like this photo. Simba’s in the northwest corner of our back yard; in my picture, look towards upper right corner. Doesn’t she look marvelous (think Billy Crystal)?!! As I think I mentioned before, I shut off all the emitters under the tree in mid-July and have deep watered (about 3 hours each time) once in August and again this month. While I’m sure the over-abundance of water impacted Simba, I also think the hot summer with relentless winds played significant parts too. Come spring, I plan to hire a professional tree-trimmer to give Simba a major pruning. I think this will help her survive next summer’s heat a bit more easily.
As of last Friday, I now have 18 hours of Master Gardener training under my belt. The classes are great! The main subjects to date have been desert bioscape, elementary botany, propagation and soil. Needless to say, I have already learned a great deal but to conserve space and time here, I’ll elaborate on what I consider my top two favorite topics. First: Right Plant, Right Spot. Admittedly, this does not sound like rocket-science; why would anyone want to buy a “wrong” plant?! Here, in the midst of the Mojave Desert, you’d be surprised. One of the Master Gardener professors refers to this anomaly as Desert Denial and I’m sad to say I’ve fallen victim to the malady on more than one occasion.
I have my theory as to why Desert Denial is so prevalent in southern Nevada: most people in Las Vegas (including yours truly) are not from here; they’re from California, New York, Florida, Minnesota and dozens of other states…not to mention other countries. Where I came from, you can go to a nursery, buy a plant, put it in the ground and have better than even odds that said plant will survive. In the desert, the odds of success are way less. Why? Because the nurseries are in Desert Denial too!! Case in point, my ever-loving Dietes bicolor, which is not included among plants suitable for Climate Zone 11 (Western Garden Book), is readily available at all nurseries in Las Vegas. I’m not saying that Butterfly Iris won’t grow here…I only need to stroll down my street and see neighbors’ plants that are seemingly doing well to know that they do grow here. My point is they are not native to our desert nor are they really desert-adapted; at a minimum they require considerable TLC before being truly established in a desert bioscape. No doubt I would be better off selecting a plant other than Dietes, but I cannot yet say what I’ll end up replacing my three lifeless plants with. I tend to be a glutton for punishment!
The second of my two top topics might best be summarized with an English proverb I found on The Old Farmer’s Almanac website: The garden must first be prepared in the soul or else it will not flourish. I think my Master Gardener instructor would probably agree with the notion that soil is indeed the soul of the garden.
So, going back to the problems I’ve been having with Dietes, we already know this is not a great choice for the desert. But since we also know they can survive here, what else might be going on? Soil issues and more specifically, soil texture issues. From Wikipedia: “Soil texture is a soil property used to describe the relative proportion of different grain sizes of mineral particles in a soil. Particles are grouped according to their size into what are called soil separates. These separates are typically named clay, silt, and sand.” In our soil class last week we had a homework assignment to determine what soil texture we have in our yard at home. I honestly don’t know why I would have expected a different outcome, but I was surprised to learn our soil is very high in sand (and you’re probably thinking, like, duh, you’re living in the desert…HELLO!!!). Nevertheless, like nothing else so far, this really hit home with respect to my Dietes. It would seem the copious amount of water I applied to this non-desert plant is seeping through the root ball as well as through the sandy soil. Compound the situation with 103° plus temperatures and voilà, dead plants! I have one or two other tests I want to perform on the soil before I’m satisfied that I am finally right. And if I am, I’ll then need to decide on the best approach to amending the soil before replanting…especially if I stubbornly insist on Dietes again!
In closing, one (repeated) suggestion: Since my new posts appear on rather an erratic schedule, you might want to subscribe to an e-mail notification whenever I add something. To begin, just click on Sign Me Up!












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