Horridculture – Ethics

P80324++Before I continue, I should mention that I have worked for some of the BEST horticultural professionals in the entire Universe! Seriously! I have worked for the single most excellent nurseryman EVER, and not one, but a FEW of the most excellent arborists EVER! YES, I am bragging! I can write about some of them another time.
I have also worked for some of the worst, including those who were involved with the maintenance of landscapes associated with various residential sites that were in the process of being renovated or demolished and redeveloped at the old Fort Ord. They engaged in more unethical activity at Fort Ord than I can write about in just a few articles. For now, I will just rant about one such incident.
Back in about 2007 or 2008, I was asked to go out to investigated a distressed ‘Marina’ madrone on Abrams Drive. The subject was easy to find because is was the only nearly dead tree within a remarkably uniform row of very healthy ‘Marina’ madrones. It had been too severely ravaged by a severe infestation of aphid to be salvaged. I prescribed removal and replacement with a new specimen of the same cultivar.
I was annoyed that the removal of this single tree would ruin the otherwise perfect uniformity and spacing of the row of trees that had been so well maintained for many years. I was even more annoyed that the people whom I worked with had not noticed that the tree was distressed before it succumbed to the aphid infestation. Aphid is not normally much of a problem for ‘Marina’ madron. It was obvious that the subject had been deteriorating for a few years before it finally succumbed, and would have exhibited very obvious symptoms of distress for at least the previous few months. Someone should have noticed a problem during that time. That is part of what the clients had been paying us significant amounts of money to do.
All that I could do was write my report to recommend removal of the subject so that the client could justify the expense.
The following week, on my way down Abrams Drive to investigate another problem, I noticed that the subject had not yet been removed. However, one of the trees next to it was missing. I stopped to investigate and found a stump with fresh sawdust. I called the project manager, but before I could ask about the missing tree, was informed that the subject had been removed. Well, one can guess what happened. The ‘tree crew’ removed the wrong specimen!
My report was very specific about the location of the subject, and cited the subject’s identification number. Now, even without that information, it should have been EXTREMELY obvious which tree needed to be removed. As I said earlier, I had no problem identifying it as the only nearly dead tree within a very uniform group of very healthy trees. Someone on the crew who removed it, or the project manager who was supposed to ‘manage’ the project, or ANYONE involved with this removal should have noticed that the wrong tree was getting cut down. Even if no one bothered to notice the dead tree that really needed to be cut down, someone . . . ANYONE of the so called ‘horticultural professionals’ should have wondered why such a remarkably healthy tree was being cut down.
So, the ‘tree crew’ returned and cut down the original subject, and actually did so with their second attempt.
Then the two trees needed to be replaced. It sounds simple enough. The problem was that these particular ‘professionals’ knew of only a few trees, and ‘Marina’ madrone was not one of them. They replaced the removed trees with the ubiquitous crape myrtle, which completely ruined the conformity of the otherwise uniform row of ‘Marina’ madrone.
The client was billed for it all.
They payed for the removal and replacement of a tree that they had already payed a significant amount of money for, to be maintained properly so that this sort of thing would not happen.
They payed for the removal and replacement of a tree for no justifiable reason . . . just because NO ONE involved could identify the difference between a healthy tree and a nearly dead tree.
In the end, the client payed a lot of money to get their formerly exemplary trees replaced with the wrong trees.

Fountain Grass

80725It was probably a good idea when it was introduced to California, but fountain grass, Pennisetum setaceum, became too much of a good thing for a few temperate regions in which it naturalizes and displaces native vegetation. Although it now works to inhibit erosion where it grows wild on the embankments of highway interchanges, it must sometime be mown because it is combustible.

In home gardens, fountain grass is more appealing if shorn back at the end of winter, and watered occasionally through the warmest part of summer. If feral seedlings need to be removed, a few may be left if they happen to grow where more plants are wanted, or to replace aging plants. Fountain grass should not be planted in regions where it is likely to naturalize but has not yet done so.

Fountain grass has narrow leaves that arch upward and outward so that the tips of outer leaves are just touching the ground. They might sag lower; or they might stand more upright. The fuzzy tan or pinkish tan flowers that bloom in summer may stand as tall as three feet. Individual plants live only a few years. The cultivar ‘Rubrum’ has striking purplish bronze foliage, and does not self sow.

Weed Seeds Can Hurt Pets

80725thumbPlants are quite ingenious with their technology of exploitation of animals and people. Many get insects, birds, bats, spiders and anyone who is animated within their environment to disperse the plants’ pollen for them. Plants who prefer to not rely on wind, water or gravity to disperse their seed exploit a different range of animals to do so. They know how to compensate for their immobility.

This sort of exploitation is generally not as bad as it sounds. Many pollinators are rewarded for their service with nectar or surplus pollen. Dispersion of many types of seed is likewise rewarded with the fruit that surrounds the seed. Many types of nuts produce significant surpluses of seed to reward squirrels for burying them, and leaving just a few to germinate and grow into new plants.

However, there are many types of seed that are not so gracious, and several that are potentially dangerous because of the tactics they use to exploit those who disperse them. Mistletoe is an odd parasitic plant that makes very sticky berries. Those that do not get eaten by birds (for later ‘deposit’) can stick to the feet or feathers of unconsenting birds in order to catch a ride to other trees.

It is sneaky but effective. Most other plants that use this technique are small annual plants that rely on mammals instead of birds. Instead of sticking to feathers, their seed are designed to stick to fur. Such seed are not often a problem for wild animals who have short fur that the seed can stick to only for short distances before slipping out and onto the ground where seed really wants to be.

Domestic animals are not so fortunate. They have longer, shaggier and maybe curlier fur that weed seeds such as foxtail and burclover can get very entangled in. Because foxtail is designed to go into fur but not come out, it is seriously dangerous if it gets into the eyes, ears or noses of domestic animals. Because dogs and cats go wherever they want to, it is very important to eliminate such weeds from gardens where dogs and cats live, and to hopefully do so before they go to seed.

Krispy Kritter

P80715KThis really is the best climate here. Winters are just cool enough for many plants that require a bit of a chill, but not unpleasantly cold. Summers are just warm enough for most plants that need warmth, but the weather does not stay too unpleasantly hot for too long. Warm weather here typically lasts no more than a week, and is accompanied by light evening breezes and cooler nights. Minimal humidity typically makes the worst of the heat a bit more tolerable.
While much of North America and parts of Europe were experiencing abnormally and uncomfortably warm weather earlier in summer, our weather somehow stayed relatively mild. For a while, it was significantly warmer in Portland than here. It certainly was nothing to complain about. Vegetable plants that crave warmth were not too inhibited by the mild weather. Flowers that typically deteriorate in warm and arid summer weather lasted a bit longer than expected.
Then the weather changed. It did not get too unseasonable warm. In fact, the weather merely did what is typical for this time of year. The problem was that it happened so suddenly. The weather went from pleasantly mild and somewhat humid, to more seasonably warm and arid overnight. Flowers faded and warm season annuals wanted for more water.
The worst of it was that exposed foliage of some plants got roasted. English laurel and rhododendron were particularly susceptible Because we had no way of anticipating the sudden change of weather, we had just shorn a large hedge of English laurel, just in time for the warm weather to cook the freshly exposed inner foliage.
At about the same time, new plants were being installed into a small newly landscaped area. The transition from the cool and comfortable nursery on the coast to the warm and arid landscape where they were surrounded by black groundcloth (prior to the installation of chips) was too much of a shock for some of them. We could not water them enough to prevent some of the foliage from desiccating.
This crispy barberry is fortunately not as dead as it seems to be. Only the outer foliage is roasted. The stems and buds do not seem to be damaged. It will probably foliate again before defoliating in autumn. Even if it induces premature dormancy, it should recover as next winter ends.
Nonetheless, such damage on new plants is disconcerting.

 

Garden Bloggers’ Bloom Day July 15 – Summer Weather Has Arrived

 

While so many of us in the Northern Hemisphere were contending with unusually warm weather, our weather here had been unusually mild. The weather only recently became warm for the past two weeks or so. It did not get unusually hot here like it did in so many other regions, but the warmth developed suddenly enough to damage many of the flowers that were blooming at the time. This included many of the new perennials that we happened to be installing at the time. Consequently, there were not nearly as many flowers to get pictures of as there had been in May, and some of the flowers in these pictures show damage from the sudden change in the weather. I am sorry that I neglected to participate in Bloom Day in June.

These pictures were taken at work, on the Santa Cruz County side of the Santa Cruz Mountains above Los Gatos, closer to Felton. The climate is more coastal than the chaparral climate of the Santa Clara Valley, although both are within USDA Zone 9.

Carpet Roses are the lowliest of all roses, but they happen to be more functional for more landscape applications than other roses are. These got pruned back to a few canes over winter, and will get trimmed for confinement about now, but really do not need any more work than that. They bloom profusely in a few phases. They are only looking tired now because of the weather.7bd1Hydrangea are finishing in most other areas here. These are odd ones. They are more exposed to harsh weather conditions than others, but are somehow lasting later than those that are more sheltered. They are blue instead of pink, but are not in what would be considered acidic conditions within redwood forests. Nor were they fertilized to be blue. No one is complaining.7bd2Yarrow was planted just before the weather changed. Once established, it does remarkably well in the endemic soil and climate.7bd3Yarrow unfortunately got roasted by the sudden warmth. These yellow (or ‘golden’) flowers are getting quite crispy already.7bd4Coneflower was likewise planted just before the weather changed, and likewise got roasted. These happen to be some of the best at the moment.7bd5Valley Oak probably qualifies as appropriate for Bloom Day because it really is blooming right now. You just can not see it. The dust is everywhere. I really like this grand and sculptural tree. The valley oak happens to be the biggest oak in North America, and it also happens to live here, on the outskirts of groves of coastal redwoods, which are the tallest trees in the World.7bd6Valley Oak is so excellent that I had to get another picture of it from another angle. The first picture was looking about south toward the midday sun. This is looking almost to the east, perpendicularly to the other picture. The cars in the foreground are much closer than they seem to be. The trunk of the tree is significantly wider than it seems to be in relation to the cars.7bd7Garden Bloggers all over America and in other countries can share what is blooming in their gardens on the fifteenth of each month on “Garden Bloggers’ Bloom Day”, hosted by Carol Micheal’s May Dreams Garden at http://www.maydreamsgardens.com

Nature Is Messy

4This sort of weather pattern does not happen very often. Late spring is normally pleasantly warm, and the weather gets progressively warmer through summer, which typically includes a few unpleasantly warm days. It rarely gets too hot here, and when it does, it does not last for more than a few days, and tends to cool off at least somewhat at night. The air is normally arid. Humidity is uncommon in a chaparral climate.
While so many in the Northern Hemisphere were experiencing unseasonable warmth, the weather here was unusually mild. When the weather became warm, it did so suddenly. There was nothing unusual about the warmth. It was well withing the normal range for this time of year. The suddenness of the change was what made it unusual.
Humidity complicated matters. Again there is nothing too strange about humidity. Although rare, it does sometimes happen. The problem was that it happened at the same time that the weather suddenly changed from pleasantly mild to somewhat warm.
This combination of the weather changing so suddenly from mild and arid to warm and humid caused an outbreak of spontaneous limb failure. It was very evident in Felton Covered Bridge Park, where several trees that experienced it could be observed in the same place.5
The most recent victim was the biggest old California sycamore in the area. Half of the top of the canopy broke away and got hung up on an adjacent trunk, but started a cascade of other limbs that broke off more major limbs all the way to the ground. A large cavity that contained a very established beehive was exposed. A car parked below was clobbered (but somehow sustained only minimal damage!). The remaining trunks and limbs of the old sycamore are now even more scarred and disfigured than they were before this happened. The biggest gash is about fifteen feet long! What a mess!
Spontaneous limb failure is technically very damaging to the trees who experience it, but not all of them see it that way. Many of the riparian trees that are so inordinately susceptible to it might use it to their advantage. Fractured limbs that remain attached to the original tree while they sag onto the ground can develop roots where they touch the soil, and develop into new trees. These new trees are more stable at first, but eventually develop structural inadequacies like their parents did, and repeat the process. Willows excel at this technique. Cottonwoods and box elders do it too. Sycamore do it only rarely, but sometimes destabilize and fall over so that some of their limbs can grow into new trees as the original trunks decay. It may not be the sort of behavior that we want in our home gardens or parks, but as far as the trees are concerned, it works.6

Six on Saturday: Redwoods

 

Both coastal and giant redwoods, are the most excellent trees. The giant redwoods are endemic to isolated colonies in the Sierra Nevada. The coastal redwoods are endemic to the coastal region from the Oregon Border to San Luis Obispo County, which happens to include this region.

Coastal redwoods are so awesome that even the dead stumps from trees harvested a century ago are awesome. Most of the stumps in this region have been charred by forest fires. Yet, even after a century, they are still quite solid. They decay very slowly, which is why their timber is such a popular and important building material. Because the stumps are so big and would be difficult to get rid of, not many of us even try.

1. Compared to some of the tacky garden art that some people pay significant money for, this old redwood stump is strikingly sculptural. It stands so proudly out on this knoll on the edge of a small creek just above where it flows into Bean Creek. It is difficult to see in this picture, but a landscaper tried to obscure this stump with potato vine. Only a bit of twiggy growth can be seen at the top of the stump. The rest of the vine is now overwhelming the adjacent dogwood above. The trunk of the dogwood is to the right. Coastal redwood forests are innately shady. The potato vine is not very happy there. Even if it were happy, and were able to obscure the stump, would it really be an improvement?P80142. These two bigger stumps are just a short distance uphill and across the small creek. Old stumps are more often single, but surrounded by multiple trunks that emerged from the roots. Because almost all of the trees here had been harvested about a century ago, there are now many more secondary trunks per area than there would naturally be. It is not much of a problem yet, but these trunks will likely become more crowded as they mature.P8014+3. These are the same two stumps from the other side. This trunk coming up from within is likely from the same original root system. All trunks that develop from the same root system are genetically identical, so they look very similar from a distance. Some genetically identical groves can be quite broad, and include many trunks.P80714++4. This small coastal redwood trunk is not happy about the fence that is nailed to it.P80714+++5. This is more what you expect coastal redwoods to look like. It is impossible to determine from this picture if these trunks are genetically identical secondary trees that emerged from the same root system, but their proximity to each other suggests that they likely are.P80714++++6. This epiphyllum is the flower that I promised to those who expressed a concern than my Six on Saturday lacked adequate bloom. I shared a picture of this same epiphyllum earlier, but it has continued to bloom.P80714+++++

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/

 

Blue Plumbago

70712The delightfully clear sky blue flowers of blue plumbago, Plumbago auriculata, seem like they belong with colorful annuals or in a tailored border of colorfully blooming perennials. However, the rampant canes of mature plants are really best in the background where they have room to grow wild. The canes do not climb like vines, but can flop over other shrubbery as high as fifteen feet.

Rounded trusses of small blue flowers begin to bloom sporadically by the end of spring, and continue to bloom in phases until late summer. Supposedly, each subsequent phase should be a bit more profuse than the previous; but not all plants are aware of this. They might bloom best in mid summer, and less profusely later. ‘Alba’ blooms white. Pale foliage indicates a need for fertilizer.

Blue plumbago is not as easy to work with as it seems to be. Once established, it can grow like a weed, and really seems to take care of itself, and it is probably better to allow it to do so. It does not like to be shorn into hedges or geometric shapes as it so often is. Shearing ruins the natural form, eliminates most of the outer canes that provide bloom, and exposes sparse interior growth.

Be Tactful With Garden Art

70712thumbSaint Francis is actually the patron saint of animals. Saint Fiacre is the real patron saint of gardening. However, statues of Saint Francis, usually accompanied by birds, and sometimes by a deer, are popular in home gardens. Has anyone ever seen even a single statue of Saint Fiacre? Statues of Snow White are more common; but her only experience with horticulture was one bad apple.

There is good garden statuary, and there is bad garden statuary. Some of the bad can be exceptionally so. It is one of the many things that back yards are for. Not much offends neighbors like a bronzed lawn mower on a pedestal in the middle of a paved front yard. Yes, it has happened. Perhaps there is beauty in the diversity of unique artistic expression. Saint Francis can not do it all.

Garden statuary and other forms of garden art work like any other household art. For many of us, it merely provide dramatic form, and perhaps color that is more permanent than flowers are. For others, there is a certain degree of self expression associated with the careful selection and display of garden art. Some of us take this even further by creating our own distinctive garden art.

Fountains and wind chimes are often incorporated into gardens to detract from less pleasant ambient sound, or simply because they sound nice. A loud fountain probably would not obscure the sound of a freeway in the neighborhood; but the sound of even a modest fountain might be adequately distracting. Wind chimes are as variable as the delicate to bold breezes that operate them.

As far as garden art is concerned, fountains and wind chimes need more maintenance than simple inactive sculpture. Chimes might sometimes need to be tied up or taken down if they get too noisy in windy weather. They can get tangled or so weathered that the strings that suspend the chimes need to be replaced. When this happens, it might be easier to simply get new wind chimes.

Fountains are more involved. Water must be added to replace what evaporates. Mineral deposits must be cleaned from some surfaces. Any aquatic plants need to be groomed like other plants in the garden. For larger fountains, fish might be employed to control mosquitoes. However, fish might attract raccoons! Small fountains with neither fish nor plants might be kept clear with bleach. So, even though garden art is not as dynamic as living and growing plants are, some of it requires significant maintenance anyway.

Horridculture – Rose Colored Glasses

P80711

This article reminded me of a sore subject from back in about 1986 that continues today: https://wordpress.com/read/blogs/7890212/posts/4888 You should probably take a look at it before you continue.

Back when my colleague and I were roommates in the dorms at Cal Poly in San Luis Obispo, we noticed how badly the photographs in bare root catalogs had been modified to enhance color. Years before modern digital editing, colored film was cut out to any desired shape and placed over a photograph to produce a new photograph with enhanced color. We looked at pictures of flowering crabapples with canopies that were entirely bright pink, including the stems, leaves and everything associated with the canopy of the tree. We could easily see the outline of the bright pink film that had been placed over the original photograph. It was done with blue fescue, hydrangeas, azaleas, callas and really just about anything that could benefit from a bit of enhanced color.

It certainly did not dissuade us from our interest in the plants that had been photographically enhanced. We liked them anyway. The poor quality of the enhancements that would be laughable by modern standards seemed to be more acceptable back then; like the idealistic pictures of the food available from popular fast food establishments. I mean, we all know that the food does not look like ‘that’ but it probably tastes like ‘that’ looks.

Three decades later, modern technology of digital editing of photographs (if they are still known as ‘photographs’) has improved the technique of color enhancement significantly. Most pictures in catalogs are now enhanced to some degree, not to be deceptive, but to eliminate minor glitches that might distract from the rest of the image, and perhaps to enhance color that is slightly compromised by the exposure at the time the picture was taken.

But of course, there are some images that are blatantly inaccurate and deceptive.

My colleague down south tells me that pink pampas grass can be about as peachy pink as cantaloupe is. It could possibly be more pink in other regions. I have never seen it more than simple pinkish tan here. I know of no one who has confirmed that it can be as bright cotton-candy pink as it is in the picture above. Is it inaccurate and deceptive? I do not know. I do not really care. If I wanted pink pampas grass, I would purchase it anyway, and just try to not be too disappointed when it blooms tan.P80711+This picture above is certainly interesting as well. It is such an appealing color. What is more interesting it that it is the exact same picture as the picture on top, but is merely a different color. I have never heard of a pampas grass doing that! It must be quite common though. Online, there are a few pictures of other pampas grass doing the exact same thing. These two below, for example, are the exact same picture in two different colors, and with slightly different proportional modification.P80711++P80711+++As amusing as these pictures are, they are not as downright KRAZY as the rainbow rose in the article that I posted a link to above is. It is certainly worth taking a look at.