Posted on by tonytomeo · 14 Comments

Oasis

P80630KWhat are they doing out there, in those two pots in the island of such a vast parking lot? It is hard to say from this distance. They are so isolated. They might be happy and healthy summer blooming annuals. They might just be weeds. They could be plotting World domination. Plants can do some weird things in isolation.

Mexican fan palm is the most familiar palm in Los Angeles. Some know them as skydusters because they are so tall and lanky, and do not seem to have anything better to do than lazily brush against the undersides of clouds as they float by. In Los Angeles, there are not many clouds to keep them busy, and there is not even much smog anymore. Mexican fan palms certainly do not make much shade, and because they are so tall, their little shadows land in neighbors’ yards. They are so tall that you might be able to see them from wherever you are merely by looking towards Los Angeles. Instead of getting Frisbees and kites stuck in their canopies, they collect satellites. When they drop one of their big leaves, it burns up in the atmosphere.

In their natural environment, Mexican fan palm lives in a large and mostly contiguous native range (areas) in which individual colonies are not isolated for too long. Pollen gets shared rather thoroughly. Trees are consequently very similar throughout the range. Slight genetic variation is only perceptible in regions such as Los Angeles, where various groups of trees are grown from seed collected from various regions of the native range.P80630K+

Sometime in the ancient history of the specie, a few individuals decided to leave the rest of the herd and go live in isolation out in the adjacent deserts. They could only survive where there was a bit of water, so they inhabited any oasis they could find. This might have happened as some trees migrated up canyons that had perennial creeks flowing through them only to have the lower portion of the canyon go dry as outflow from above decreased. Seismic activity within the region has a way of altering the outflow of springs. Anyway, these more reclusive palms eventually became a separate species, or subspecies, or variety, depending on the botanist providing the information. This separate species (or subspecies or variety) is now known as the California fan palm, or the desert fan palm. It thrives on the hot and arid desert air, but is not very happy in milder and more humid coastal climates. (I am sorry that I do not have a good picture at the moment.)

Unlike Mexican fan palm that lives in a big contiguous range, California fan palms lives in small isolated colonies where they can not share their pollen freely with other colonies. Over thousands of years, each colony adapts to its specific environmental conditions. Genetic variation within colonies is not perceptible, but is quite obvious in landscape situations where trees grown from seed from different colonies can be compared.

California fan palm is much shorter and stouter than Mexican fan palm. It does not need to compete with too many other specie out in the desert. The trunks are straighter, and the canopies are fluffier. Unlike the very informal and relaxed Mexican fan palm, it is an excellent palm for formal landscapes. It is the specie that flanks the famous Palm Driveway at the Winchester House in San Jose. The only stipulation for these formal installations is that all the palms must be grown from the same batch of seeds procured from the same colony.

Posted on by tonytomeo · 1 Comment

Politically Incorrect Horticulture

P71008Landscape Designer, Brent Green and I are both very professional at work. Brent is particularly well dressed, well groomed and well spoken. I happen to be simpler and plainer, but it works for the clients who respect my expertise. What our clients do not see is how we interact with each other. It would be very easy to be offended. Yet, we consult with each other almost daily, usually when Brent is driving somewhere . . . alone. We get loud, obnoxious, rude, crude, potty mouthed and just plain nasty!

Years ago, when Brent got his telephone connected to the stereo in the car, he made the mistake of driving up to a drive through window at a fast food establishment while talking to me. I listened to him place his order, and then shouted, “THIS IS A HOLDUP! GIVE ME ALL YOUR MONEY!”.

Last year, while stuck in traffic on southbound Highway 17 with the top down in the old Chrysler, I took a call from Brent. I was using some weird hands-free device at first; but when Brent started rapping about some very objectionable subject matter, I just had to share. I disconnected the device so that the call was coming through on the stereo, and turned the stereo up very loud. I just sat there calmly and tried to look as if I did not know where all the commotion was coming from, although it was obvious. I just didn’t care. Neither did Brent. He was 350 miles away.

However, not all of our nonsense is so senseless. We have developed quite a bit or our own private vocabulary and horticultural slang. It works for us because we share so much common experience. Much of the slang applies to ‘ethnic horticulture’, which refers to the gardening styles of particular ethnic groups. Brent’s favorite ethnic group to invent ethnic horticultural slang for is of course mine. Although I am only halfway of Italian descent, I can really identify with Brent’s observations of the gardening habits of people of Italian descent.

My ancestors have been here so long that the ‘old country’ refers to Sunnyvale (California). Yet, somehow, some traditions continue through many generations. My great grandfather grew many of the plants that are very stereotypical of Italian American gardening. My pa is more cosmopolitan, but he and I still enjoy some of what we learned from my great grandfather.

This is some of the slang that Brent developed for some of what I grow in my garden:

  • dago pansy – nasturtium
  • dago begonia – geranium
  • dago sunflower – dahlia
  • dago rhododendron – oleander
  • dago tomato – tomato (duh)
  • dago wisteria – grape
  • dago plum – fig
  • dago berry – olive
  • dago spruce – Italian cypress
  • dago firewood – any fruitless tree
  • dago ghetto grass – Astroturf (not in my garden)
  • dago groundcover – red lava rock or white moonrock
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Automotive Horticulture

P70929The nomenclature of horticulture, or the ‘naming’ of plants, is very similar to that of automobiles. All those confusing Latin names work just like the names of cars, with species, genus and even family. The Electra is made by Buick, which is a subsidiary of General Motors. I write an article about this every so often. It probably made more sense back many years ago, when both cars and plants were simpler.

Nowadays, it is difficult to distinguish between the different kinds of cars. There are so many different kinds, and they all look so similar. Buicks are not nearly as stylish and distinctive as they once were, and do not look much better than a well outfitted Honda! Cadillac and Lincoln make station wagons, which are now known as SUVs; and they even made pickups! Many cars have one name on the outside, and another, or a few on the inside. A Chrysler might be made by Mercedes Benz, with a Japanese engine! Many cars that had been ‘imports’ are make locally. There are so many different models that some do not even get names. They just get numbers. What is the point of trying to keep track of them all?

Plants have done the same. So many of the reliable and standard specie that had been around until the 80s have been replaced by too many modern cultivars and hybrids to count. Some have been hybridized so extensively between different specie of the same genus that they are not even assigned a specie name! They are merely known by their cultivar name. For example, Grevillea ‘Peaches and Cream’ lacks a species name because no one know who the parents were. (It might be a Grevillea banksii X Greillea bipinnatifida hybrid. See the article about it at https://tonytomeo.wordpress.com/2017/09/30/peaches-and-cream-grevillea/.) What is the point of using standardized nomenclature without the standards? This is not like Madonna or Cher, who do not need last names because they are so unique. Plants need their names more than before because there are so many new ones.

Cars have been improved in the most important ways. They are much safer than older cars. They are also much more efficient and remarkably more durable. The main problem with these improvements is that cars are so difficult to maintain for those who are not professional automotive technicians. Those of us who were inclined to maintain our own vehicles years ago must now take them to mechanics. Although vehicles are designed to need much less maintenance and to last longer, they eventually need to be replaced when maintenance is no longer practical. They are not as sustainable as old cars that can sometimes be repaired with part found in a common hardware store.

Plants have likewise been improved to do what we want them to do better. Foliage is better and more resilient, and in some cases, more colorful. Flowers are more abundant, more colorful, and last longer. Whatever plants were supposed to do before, many do better now. The main problem with all the breeding and hybridizing necessary for these unnatural improvements is that it interferes with what plants need to do naturally. Some are not able to produce viable seed, (although this is an advantage for potentially invasive plants). Others are genetically weak, and therefore more susceptible to disease and insect infestation. Perennials that once perpetuated themselves indefinitely now die out in only a few years. Plants that were once easy to propagate are now not so cooperative. Like modern cars, plants can not be maintained as long as they once were, so need to be replaced instead of sustained.