Bad Date

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No one likes a bad date.

Date orchards that were displaced by the expansion of urban sprawl around Las Vegas in the 1990s were the source of the many recycled mature date palms that briefly became popular for large scale landscapes at the time. Most of the trees within the orchards were female, with only a few male pollinators. (Pollinators can live remotely, where they provide pollen for dusting.)

Male trees were undesirable anyway, at least in conjunction with female trees. They are taller and lankier, with less pendulous foliage, so are less visually appealing. More importantly, they pollinate female flowers so that they make fruit. Of course, in orchards, fruit is very important. In landscapes, it is just a mess. Without male pollinators, female trees produce no messy fruit.

Consequently, most male trees were not recycled. Some were installed singly, or in exclusively male colonies, in landscapes that were reasonably isolated from female trees. After decades of dutiful service, this is how they were retired, . . . or not.

During the brief date palm fad, a colony of exclusively female date palms at a mall near here produced a minor crop of dates during its second year after installation. It was not a major mess, but it was perplexing. Eventually, someone realized that a single relatively small male date palm lived just outside of the landscaped areas. It likely grew there from seed as a curb mongrel.

Even though the male tree was too remote to pollinate the female trees sufficiently for a major mess, it was removed. It was not much bigger than the short and clumping date palm pictured above. This tree seems to be a curb mongrel as well, since it was not likely planted there purposely. Furthermore, it will also likely need to be removed. It is too close to the building behind.

Weeds?

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Although I can not be certain, I believe that this is prickly lettuce.

Pretty weeds do not get my attention like they do for others. They look too much like weeds to me. If I want to appreciate them, I must do so with intention. Sometimes, I do actually try. I did happen to notice these two weeds. However, now that I got their pictures, I have no use for either of them. Neither is readily useful for the gardening column. I will just share them here.

The yellow flower pictured above is most likely prickly lettuce. I really do not know. I know it as yellow chicory; but chicory does not bloom yellow. Some people think of it as dandelion, since the flowers are similar. These flowers stand much higher though, with only minimal foliage below. For the picture, I plucked this flower and stuck it in the ground to keep it still in the breeze.

The white flower pictured below is common bindweed. When I was a kid, I knew it as morning glory. In this close up picture, it looks like a fancier garden variety of morning glory, although the flower is much smaller. Real morning glory happens to look good in white, like this one does. If it is fragrant, I have never noticed. It tends to creep along the ground more than it climbs.

It sometimes seems silly to me that others so easily notice how pretty weeds such as these are, especially while there are so many more flowers that are prettier. Then, I realize what others must think of what I consider to be pretty. For example, the pollarded blue gum with aromatic blue foliage that I enjoy so much, is the same species that gives all eucalypti a bad reputation.

Besides, these flowers were the prettiest in the otherwise bare meadow where I found them.

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Bindweed looks like miniature morning glory.

Six on Saturday: Closeups II

This is the more foliar counterpart to the closeups for my Six on Saturday from last week. Some are closer than others. Some would be more easily identifiable without captions than others. All are quite random. All these subjects are in the storage nursery; but only #1 and #5 will eventually find homes in the landscapes here. The others will likely go into one of my own gardens. I have no idea of what to do with #2.

1. Agave pedunculifera – provided the most abstract picture of the six. The name is only a guess. Someone else might have been able to identify it as something else if more of it were visible.P00711-1

2. Eucalyptus globulus ‘Compacta’ – compact blue gum – was my second choice for juvenile blue gum foliage. It was easier to reach because it is more . . . compact. The other blue gum is tall.P00711-2

3. Cinnamomum camphora – camphor – is light yellowish green most of the time, and then gets slightly blushed with new growth late in spring. This young tree started late in partial shade.P00711-3

4. Trachicarpus fortunei – windmill palm – provided the second most abstract picture of the six. It is more recognizable though. Mediterranean fan palm is darker. Other fan palms are light.P00711-4

5. Picea sitchensis – Sitka spruce – was brought from Smith River, on the coast just south of Oregon. It does not seem to mind being so far from home. The happy new growth is impressive.P00711-5

6. Juniperus virginiana – Eastern red cedar – is my favorite this week because I brought it from Oklahoma. Cedrus deodara – deodar cedar – is the real cedar that provided the background.P00711-6

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Horridculture – Weed Whackers

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This must be the better half.

This neatly sliced prickly pear is too silly to rant about. There is another just like it. Two others were not sliced, as if, after the first two, someone realized that there was more to the roadside meadow than combustible dry grass. The prickly pear were put out there just last winter. They each extended only a single pad half a foot or so above grade, so were obscured by the grass.

Realistically, the damage is minimal and tolerable here. The priority of the crew who performed the vegetation management was to cut down all the combustibles. They did an efficient job of it. They did not expect to encounter anything that had been intentionally installed out there, or even any desirable vegetation. Besides, this prickly pear will recover as if nothing happened.

Unfortunately, damage caused by weed whackers is rarely so innocuous. Weed whackers are one of the most commonly misused horticultural power tools, and are very often used by those who are not aware of how to use them properly. They are easy enough to operate that minimal consideration is given to the potential for damage that they can cause. It is a bad combination.

Because weed whackers are often and improperly used to cut tall grass that is too close to trees for lawn mowers to cut, they commonly strip off bark and cambium from young tree trunks. A tree can not survive without its cambium, and quickly dies if too much is stripped away from the base of its trunk. That is why it is very important to pull weeds from around trees instead.

For now, there is nothing to do for the two sliced prickly pear. The bud to the upper right corner of the pictured specimen is beginning to develop into a new pad.

Sunburn

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Out with the old, . . .

There are two types of horticultural sunburn. Sun scald is what happens to formerly shaded bark if it suddenly becomes too exposed. (As I mentioned in my gardening column for this week, which posted last Monday here, sun scald that occurs during winter in colder climates is caused more by frost than by sunlight.) Scorch is what happens to overly exposed sensitive foliage.

The picture above is an example of scorch on a significant scale. The bigleaf maple was formerly shaded by a big Douglas fir that fell last May, leaving the maple both severely disfigured and very exposed. Such exposure would not have been a problem it the foliage had always been so exposed. The problem was that it developed in shade, so could not adapt to the new exposure.

The exposed foliage survived for a while, but eventually succumbed to warmth, sunlight and aridity (minimal humidity). Deterioration accelerated as the weather became warmer in just the last several days. Because the foliage scorched rather than succumbed to cooling autumn weather as it would have done a few months later, it remains attached to the stems that it grew on.

That is actually an unsightly advantage for the bark of the stems that are shaded below. If the bark suddenly became exposed too, it would be susceptible to sun scald. This tree knows what it is doing. Deteriorated foliage that does not get dislodged by later winter weather will be dislodged as new foliage develops next spring. The new foliage will be adapted to the new exposure.

The picture below shows how new grow that is adapted to the new exposure develops adventitiously from the exposed trunk. It does more than just exploit the increase of sunlight. Ideally, it shades suddenly exposed bark to protect it from sun scald.

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. . . and in with the new.

Fourth of July

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Lily of the Nile are floral Fourth of July fireworks.

Fireworks, Fourth of July parades, and the associated crowds are of course canceled for this year.

Lily of the Nile does not mind. It blooms in time for the Fourth of July regardless of what the rest of us are doing, or not doing. That is one of the two reasons why some of us know it as the ‘Fourth of July flower’. The other reason is that the nearly spherical floral trusses resemble exploding skyrocket fireworks. They are mostly blue, with some white. All that is missing is red.

The bloom in this picture is not exactly exemplary. It would have been larger, rounder, and likely more advanced in bloom if it had developed in a sunnier location. There are enough of them that we do not notice that most are somewhat diminutive. In autumn, many of the overgrown plants will be relocated to a sunnier situation where they can bloom as they would prefer too.

Lily of the Nile was the first perennial that I grew a significant quantity of. While in junior high school, a neighbor instructed me to remove a healthy colony of lily of the Nile that had grown obtrusively large in only twenty years. I could not just discard it, so chopped it into more than sixty pups, and planted it all over the neighborhood. Much of it is still there. A bit of it is here.

Back then, it was known as Agapanthus orientalis. In school, I learned it as Agapanthus africanus. I still do not know if they are two different species, or if one is just a variety of the other. I do know that mine are distinctly different from common sorts, with bigger and rounder floral trusses. The others have straighter stems that support their blooms batter, and finer foliage.

Six on Saturday: Closeups

 

This is not how we normally look at these flowers, stems and vegetables (fruits). They might look strange out of context. That was sort of intended. ‘Six on Saturday’ allows more freedom of creativity than the simple illustrations that I use for the gardening column. The last two are closeups of the same two gladiolas that were featured last week. Perhaps they show color better.

I should try this again for next week.

1. Lily of the Nile is the ‘Fourth of July Flower’. It blooms for the Fourth of July, and the florets radiate from the center of their floral truss like fireworks. I will write more about this at noon.P00704-1

2. Epiphyllum stems, like the stems of other cacti, do all the work of foliage. Because they are flat, they actually look like big and weirdly arching leaves. New tip growth is still rather blushed.P00704-2

3. Zucchini is too productive. I neglected to go down to harvest it for two days or so, and then found that some fruits had gotten as big as bowling pins. They are fortunately not too tough yet.P00704-3

4. Red willow is a weedy tree that I should not be growing intentionally. This is special though. I brought its cuttings from Reno. It will be coppiced, and not allowed to grow as a real tree.P00704-4

5. Gladiola got enough attention last week that I got closer pictures of them this week. This one seemed to be more purple or less blue last week, with just a bit of white, like elderly Grimace.P00704-5

6. Gladiola are more fun when someone else selects bold colors that I would not consider. This flashy orange and yellow bloom is exquisite, and looks like Grimace’s friend, Ronald McDonald.P00704-6

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Horridculture – Vandalism

This would have been an ideal time for a seasonal update on the little Memorial Tree in Felton Covered Bridge Park. Until recently, it had been healthier and growing more vigorously than it had since it was installed a few years ago. It had survived major accidental damage, and was just beginning to thrive. Sadly […]

https://feltonleague.com/2020/06/28/vandalism/

via Vandalism — Felton League

A Strong Foundation

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Before: Camellias left the foundation exposed a long time ago, but instead obscured the view from the windows above.

‘Foundation planting’, which most of us think of as vegetation intended to merely obscure a foundation behind lower and prettier plants, has a simple utilitarian origin. Before homes were so commonly outfitted with rain gutters like they are now, densely shrubby foundation plantings diffused water that fell from eaves, and limited splattering of mud onto foundations and walls.

Nowadays, foundation planting only needs to look good, and maybe obscure crawlspace vents or exposed undersides of decks. They might be allowed to get as high as window sills, or higher.

These camellias got more than a bit too high. They had not obscured the cinder block foundation in a very long time, and did not contribute much to the shingled wall above. What was worse was that all of their best foliage and bloom obscured the view from the window above, and obstructed sunlight to the interior. They were impressive specimens, but were not doing their job.

We tried to prune their canopies lower and thinner, in order to promote more lower growth that we could prune down to later. They responded by merely replacing what was pruned away, exactly where it was pruned away from. We considered relocating the camellias to where such big and lanky camellia trees would be desirable, but they are too old and firmly rooted in place.

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After: Camellias can either start over or die.

The only option was to coppice them. It was quick and easy. We cut them to the ground with the expectation that they will either regenerate from their stumps or die. If they die, we will not miss them. (Okay, I might.) The new growth will obscure the foundation well, and after a few years, should resume blooming. They will be patchy if some but not all do survive, but we tried.

The remaining sculptural specimen obscures no windows.

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Stumps are a few inches high. Any new growth should hopefully develop on top, just above grade.

Edelweiss – Fail

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‘Small and white, clean and bright’? They only got as far as ‘small’ and ‘clean’, but did not get to ‘white’ and ‘bright’.

Edelweiss, edelweiss, every morning you greet me. Small and white, clean and bright, you look happy to meet me. Blossom of snow, may you bloom and grow, bloom and grow forever. Edelweiss, edelweiss, bless my homeland forever.”

Why are there no corny songs like this about California poppy?

Although I never met edelweiss before, I always thought that it must be quite excellent. Those who are familiar with it where it grows wild in European mountains seem to believe so. It does not look like much in pictures, so must be much more impressive if experienced directly.

A colleague here who met it directly in Austria decided to grow some, and easily procured seed online. The seed was chilled in a freezer to simulate winter in the Alps, and sown just prior to the last of the rain as winter ended. They germinated, and the seedlings started to grow, but then mildewed. The potting soil that they were in was likely too rich and too damp.

After all, edelweiss naturally lives in limestone scree, where the climate is harsh. Such environments are less than hospitable to fungal pathogens that cause mildew. Rich and well watered medium that would be considered to be a good situation for so many other seedlings may not be what edelweiss seedlings are comfortable with.

There are already plans to try edelweiss again next year. Seed might get sown in sandier medium, and a bit later in the year, so that they are not so regularly dampened by rain. If they survive beyond their seedling stage, they will likely become more resilient as they get established in an appropriate landscape. There are a few situations here where sandy soil drains well.

Perhaps I will eventually experience edelweiss, and see what all the fuss is about.