That refers to the pattern of the veins in the leaves. Long before studying horticulture and botany at Cal Poly, my classmates and I learned a bit about horticulture within the contexts of studying ‘nature’. While in the sixth grade, we all went to camp for a week. One of the many projects we did during that time was collecting a few leaves to represent three different vein patterns, and mounting them under clear plastic on a cardboard plaque. The three different patters were, ‘pinnate’, ‘palmate’, and ‘parallel’. I do not remember if we all used the same leaves, but for my plaque, I got a blue gum eucalyptus leaf to represent pinnate veins. Palmate veins were represented by English ivy. Parallel veins were represented by English plantain.

These two blue gum trees are the same trees that provided the leaf with pinnate veins for my plaque. This is not…

The Steven Michael Ralls Memorial Tree has done well since it was installed precisely a year ago, on the second of May of 2020, which was the third anniversary of the passing of Steven Michael Ralls.

Although it was installed after the primary rainy season, it enjoyed a few late rain showers prior to requiring supplemental irrigation through summer. It was occasionally given a bit of fertilizer to help it get established. Staking was not necessary.

The young tree may not seem to be much larger now than it was a year ago, but has undoubtedly dispersed roots sufficiently to survive without supplemental irrigation. It may receive a few more doses of fertilizer in conjunction with occasional supplemental irrigation, just to accelerate growth while it is still young and vulnerable, but should not get so much that it becomes reliant on…

Foliar tapestries are impressive in the right situation. https://tonytomeo.wordpress.com/2018/02/25/foliar-tapestries/ They work as nicely on exterior walls as conventional tapestries or paintings might work on interior walls. However, they require much more maintenance!

Trendy green walls are overrated. Their only real advantage is that they are pretty. They are not a ‘real’ solution to anything. They may keep the interior of a small building a bit cooler, but no more than light colored paint or a shade structure would. They do not save water, and actually use more water than plants grown in the ground. All that water is likely to rot the walls behind, or the decking below. They do nothing for melting glaciers or saving the planet. In a few more years, when they are no longer trendy, they will be more junk in the landfills.

Most obtrusive exterior walls can be obscured or partly obscured with less demanding…

Dogs and humans have been in a symbiotic relationship longer than history can document. Dogs naturally became more domesticated as humans did, and have been more or less selectively bred for a few thousand years.

Dingos are different. No one knows for certain how domesticated they were when they first came to Australia. They probably had been domesticated enough to come on boats with the first humans to migrate to Australia. After arriving in Australia, they became feral, although still symbiotically migrating with humans. They are now considered a native species of Australia.

Many species of plants have lived symbiotically with humans as well. As long as humans have been living with dogs, they have been domesticating and breeding plants. As plants were more extensively bred, they became more dependent on humans for their perpetuation. Some are so overly bred that they are sterile and unable to perpetuate without human…

Speaking of which, this is not the right location!

This unhappy Mexican fan palm may have grown here from seed, as they often do. They are notorious for growing under utility cables because that is where birds drop so many of their seed. Perhaps the seed for this one was dropped by a bird perched on the sign many years ago.

Ironic, isn’t it. Birds tend to perch on utility cables and signs and in trees and everywhere that palms should not be planted. How often do they drop seeds out in the open, where whey will not encroach into something as they grow up? Why can’t they drop palm seeds in places where palm trees would actually be an asset? It happens sometimes, but not as often as palms appear where they are not wanted.

The picture below shows three larger Mexican fan palms that were intentionally planted in…

Color in the garden is nice as long as we can see it. There is not so much to see after the sun goes down. That is why some gardens that get used at night are illuminated.

Sometimes it is important to illuminate walkways, driveways and stairways for safety, even if exhibiting the landscape is not important. For such applications, the quality of the light is not as important. Sodium vapor light that works so well for street lamps can make plants look rather sickly. Mercury vapor lamps can make them seem rather pale and bland. Modern LED lamps just look creepy.

So, what happens when foliage that already looks sickly get illuminated by light that enhances the sickly appearance? Well, like many styles of contemporary art, it is a matter of taste . . . or perception . . . or some other big word that a horticulturist neither…

My weekly gardening column does not have much space for everything that should be said about the various topics and featured specie. I just try to fit the most basic of information into the space available, but usually would like to fit more in.

Sometimes, I would like to fit more pictures in too. It can be difficult to select just one camellia, or just one rhododendron. I typically select those that have the best contrast for black and white pictures, just in case some newspapers must deprive them of their color. That often means that I get to select my favorite white flowers rather than their more colorful counterparts. Regardless, there are so many good pictures that do not get seen. Then, there are also many qualities of the subjects that are difficult or impossible to show in pictures.

The dogwood picture that will get posted on Tuesday is…

Halston, with the help of several friends, could make a nice pill box hat. That is the origin of the name; from pill box hate fame. This might help clarify, https://tonytomeo.wordpress.com/2018/01/27/caution/ . Yes, Halston was a gopher.

Halston was causing some significant damage that was more of a concern than fashion. Halston started by making several large volcanoes under an already distressed ‘Yoshino’ flowering cherry tree right on the edge of the main road. I really did not want any more of the roots to be ruined. I dug into the main tunnels and set traps; but Halston was very elusive, and pushed traps out of the tunnels, and left them unsprung at the surface of the soil.

Halston was very busy last weekend, creating a chain of volcanoes like the volcanic islands of Hawaii. They were right along the edge of a paved walkway, so were both unsightly and…

Staghorn ferns are epiphytes. They cling to tree trunks, rocks or whatever they happen to grab onto. They can root into decayed wood if it is porous enough, but they are satisfied to just cling to the exterior. They do not need soil. They sort of make their own soil by collecting debris that falls from the canopies of trees above. In the jungles where they live, they get all the water they need from rain. They often live in the crotches of branches because that is where they happen to land. (The epiphyte I wrote about earlier was just a palm that landed in the wrong place, but is not really an epiphyte. https://tonytomeo.wordpress.com/2017/11/15/epiphyte/ )

In home gardens, staghorn ferns are often grown on wooden plaques so that they can be moved around like potted plants. Because it does not rain much here, they need to be watered occasionally…

This exquisite yet elegantly simple persimmon orange cravat is to die for! See how distinguishing it is for the Umbellularia californica sporting it! The brilliant color is so appropriate for a tree that needs to stand out in a crowd! How else would the arborists coming to cut it down find it? Yes, it is to die for!

This sort of high fashion is not normally so high. Trees that are tagged by surveyors are typically more discretely tagged with spray paint down near the ground. We just used this orange tape because we were only hastily marking a few or our own trees for removal, and nothing else.

The problem with tape in other situations is that it can be removed and applied to another tree. One of my colleagues sent his crew to cut down a street tree downtown that had been marked with orange tape, only to…