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Ancient Ruins

Eight columns arranged in a semicircle behind the High Place garden at Filoli were found by excavation for the foundation of a skyscraper in San Francisco. The stone from which they were carved is European, but no one knows how or why they were buried under San Francisco. They could have been recycled into one of many buildings that were destroyed by the Great Earthquake and associated fire of 1906, and subsequently buried within landfill with tons of other debis. They were more likely recycled as ballast for a European ship that, as it deteriorated or became obsolete, was dismantled and buried within landfill in San Francisco. It is a mystery. They are in a formal landscape at Filoli now, and will likely remain there for a very long time.

Within a dumpster of recyclable broken concrete, I noticed this old concrete column. With a bit of investigation, I also found the base. Each component is very heavy. I have no idea what they were, but I suspect that they were the base of an elaborate birdbath. I did not find any associate basin within the dumpster. In order to identify their origin, I inquired about these items with those who disposed of them. At the location, I found a small portion of the column that fits between the base and the larger portion of the column, as well as another column that is identical to the original with the smaller portion attached, but no other base. Nor did I find any basin or other features that might have been supported by the columns. They are either already disposed of, or buried by earlier excavation. It is such a waste. Regardless, these items are here now, and will hopefully be incorporated into the landscapes, although I have no idea how.

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Six on Saturday: Are We There Yet?

As expected, the second half of my vacation was delayed. Then, very unexpectedly, all of our delays worked out. Rhody, Carson and I left exactly on time. Then, as unexpectedly, and just an hour from our first destination at Brent’s Jungalow, we were diverted to our final destination near Buckeye near Phoenix in Arizona. The explanation is as tedious as the additional six hour drive, at night and partially through Los Angeles style traffic. We are here now but got almost no pictures yet. We stopped only briefly in San Luis Obispo, where Brent and I were in school from 1985 to 1990, and where a few of our friends live.

1. From his shelf in back, through the dirty windshield, and through the dirty window of a cafe, Rhody stared impatiently at me as I tried to enjoy a bit of coffee the day before we left. ‘Hot Lips’ Salvia microphylla to the left is the only vegetation visible in this picture.

2. Wile E. Coyote also stared at me impatiently, at the end of the same day, as I finished a last task prior to leaving. I can not identify the vegetation that is visible in this picture. I suspect that the tree to the left and above is a common Pacific willow, Salix lasiandra.

3. The hills have eyes. I have no idea what the pair of shrubs at the center of this picture are. I only know that they have not changed since I arrived at Cal Poly in 1985. I got this picture right outside of my classmate’s office in the Alan A. Erhart Agriculture Building.

4. Also right outside of my classmate’s office, several specimens of unidentified eucalypti were recently installed. I recognize none of them. This specimen exhibits remarkably big leaves for the genus. These trees are very close to where I first met Eucalyptus torquata.

5. Barrel cactus, Echinocactus grusonii, dies ugly. It looks like something out of a horror movie, or like it consumed a horror movie. I suspect that this and several other similarly imploded carcasses decayed because of automated irrigation that is intolerably frequent.

6. Is this good or bad landscape design? I typically prefer uniformity and symmetry, but this seems to be excessive. Several rotting specimens, mostly to the right, are disrupting the symmetry, but also leaving voids. I got this random picture as I left San Luis Obispo.

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/

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Lilac

Lilac is splendidly fragrant!

‘French Hybrids’ are not fuel efficient European cars. (However, if there were a French equivalent to the old Japanese Datsun ‘Z’ that was instead named the ‘S’, we could really see the ‘S car go!’) ‘French Hybrids’ are varieties of lilac with single or double flowers in various shades of lavender, pink, pale blue, pinkish red, purple and white. Some have flowers that are two-toned. ‘Primrose’ is an interesting shade of pale yellow. All are strongly but elegantly fragrant. 

Even though ‘French Hybrids’ have the advantage of being better adapted to mild winters, the original species of common lilac, Syringa vulgaris, and its older varieties seem to do just fine locally, and actually seem to be more fragrant. The only disadvantage is that almost all bloom with lavender flowers. ‘Alba’, with white flower, is rare. ‘Descanso Hybrids’ were developed for even milder winters.  

The individual tubular flowers are actually very small, but bloom in dense conical trusses that are typically about three or four inches long, and possibly twice as long. Trusses develop on year old stems, so pruning should be done right after bloom only, although dead-heading (removing deteriorating trusses) without pruning can be done at any time. The soft and sometimes light green leaves are about three inches long. Mature plants are often eight feet tall and nearly as broad, and can get twice as large.

Unlike most plants that get suckers that need to be removed, most lilacs should instead be pruned to remove older canes and to promote healthier growth of suckers. This process of ‘alternating canes’ continually replaces less productive deteriorating stems with vigorous new stems. Old fashioned grafted plants are the only lilacs that should have their suckers removed; but they are uncommon, and do not sucker as much anyway.

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Snail Season

Very fresh escargot

The problem with escargot that is too fresh is that it grazes – a lot! Snails, as well as slugs, lurk in our own gardens, waiting for nightfall, or sometimes not, to emerge and devour any tender plant parts that appeal to them. They tear apart large leaves and fresh flowers, and eat seedlings completely. They are particularly problematic this time of year, while the garden is still damp, but the weather is getting warmer, and especially since there is so much fresh new vegetation for them to eat.

The most effective means of controlling these troublesome mollusks is to eliminate their hiding places where they camp out during the day. This involves pulling large weeds and removing any debris that may be laying about the garden. Leave no stone unturned. Of course, this is not so easy in lush gardens with abundant or overgrown foliage, and features like large pots and statuary. In such situations, cunning and diligence are in order.

I have found bare copper wire wrapped around pots, planters and tree trunks to be an effective deterrent. Copper tape sold in nurseries and garden centers is probably better since it is wider. It can be self adhesive, or stapled to wooden containers or shelves. Snails can get past the copper though, on any plant parts than hang over where the snails can reach. Wire should be removed from tree trunks after ‘snail season’, or wrapped in a manner that accommodates for trunk expansion. For example, an ‘S’ shaped curve in the circling wire set flatly against a tree trunk provides enough slack for a bit of expansion.

It is also good to hunt snails as they come out after dark or before they go in for the morning. They are neither elusive nor fast. They are merely objectionable to handle. Laying a piece of cardboard or similar material out for them to hide under, and then surprising them during the day is a sneaky trick, but effective. Putting small puddles of beer out in shallow containers, such as saucers for potted plants, is more work, but not often as effective. It is sneakier though, since it entices the snails to stay out drinking until they die in the sunlight.   

Posted on by tonytomeo · 2 Comments

Azalea

Azalea bloom can almost obscure foliage.

Azaleas, which are species of Rhododendron, have been in cultivation for centuries. At least ten thousand cultivars are documentable. Most are interspecific hybrids. Only a few are selections or breeds of simple species. Most of their ancestral species are native to Asia, Europe or North America. Almost all cultivars that are available here are evergreen.

Azaleas can bloom profusely enough during April or May to almost obscure their foliage. Bloom may last for more than two weeks. Floral color ranges between white and red with many tints of pink, salmon and magenta. The most profuse flowers are as narrow as half an inch. Larger flowers may be three inches wide. Rare deciduous azaleas are fragrant.

Azaleas do not grow fast, but can eventually sprawl more than five feet wide. Some can grow nearly twice as wide. Although most do not grow much taller than three feet, some can grow twice as tall. Azaleas are naturally understory species, so can tolerate a bit of partial shade. They should not crave fertilizer. If they do, they prefer acidifying fertilizer.

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Floral Color Communicates To Pollinators

Flowers attract their pollinators with color.

Bloom is bountiful for spring. It is more abundant now than it will be at any other time of year. Early bloom has more time to produce more seed prior to autumn and winter. Also, it can most efficiently exploit its pollinators who are also most active in spring. The most prominent blooms appeal to such pollinators with floral color. Their effort is remarkable.

Most bloom within most natural ecosystems here relies on wind for pollination. Although very efficient, it lacks prominence. Some grasses seem to produce seed without evident bloom. Because such vegetation does not rely on pollinators, it has no need to advertise. Toyon produces tiny but prominently profuse flowers for both wind and insect pollination.

Most species within home gardens rely on pollinators rather than wind for pollination. At least their ancestors did. They originally developed both floral color and floral fragrance to attract pollinators. Extensive breeding enhanced color and fragrance, but also caused sterility for some. Others are not true to type. Their visual appeal became less practical.

Obviously, such visual appeal and associated practicality are subjective. Although less practical for procreation, enhanced bloom is more practical for home gardens. Most who enjoy flowers appreciate enhanced floral color and enhanced floral fragrance. They are unconcerned with how species that provide such bloom procreate. Looks are everything.

Besides, some pollinators can still enjoy most enhanced floral color. A few flowers are so genetically modified that they confuse some pollinators. A few insects die of exhaustion while trying to gain entry. Generally though, most get what they came for or safely leave without it. Many who enjoy gardening also enjoy pollinating insects and hummingbirds.

Ultimately, floral color is personal. Many garden enthusiasts prefer specific color ranges or specific colors. Many prefer an abundance of color. Some prefer more subdued floral color. Some prefer specific types of flowers to provide floral color. Bloom season may be another concern. Some want more winter bloom while nearby gardens lack floral color. Many prefer major spring bloom. Some like random bloom through the year.

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Unused Azalea Pictures

Contractions are awkward for me. I certainly could use them if I want to, I just prefer not to. It is a pointless habit that I should be more comfortable with breaking sometimes.

Another habit that I should indulge in less is the use of six different cultivars of the same species for my ‘Six on Saturday’ posts. I have done it for camellias, rhododendrons, roses, flowering cherries, bearded iris, African daisies and a few other species, including various annuals. I refrained from featuring six azaleas simultaneously for yesterday morning, although I did feature three bearded iris, which comprised half of the ‘Six on Saturday’. I should remember to limit azaleas to three pictures, or preferably two or one, if I feature them on ‘Six on Saturday’ later, as they continue to bloom.

These two pictures of azaleas were omitted from my ‘Six on Saturday’ post yesterday because, as the theme implies, such posts are limited to six pictures. Perhaps I should have used one or both of these pictures instead of one or two pictures of bearded iris. It is too late now.

The first azalea above is variegated. Its leaves resemble those of variegated andromeda. I do not remember what cultivar it is, although the label remains attached to at least one specimen. At least three specimens inhabit the same landscape together. They are blooming better this spring than they have in the past, perhaps because, annually, they are bigger and more established than they were for their previous season.

Relative to the many azaleas here, the second azalea below is nothing special. I like this particular picture because it happens to show a bee visiting the bloom. My pictures tend to be more technical than artistic. Perhaps I should try to include a bit of wildlife sometimes.

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Green, White & Red

North Fourteenth Street is about as close as I have ever been to Italy; but amongst all the Green foliage here, I can find a bit of White albino Redwood foliage. It is a ‘sport’, which is a silly word for mutant growth. Because it lacks chlorophyll, and is consequently unable to photosynthesize, it is reliant on resources that it draws from the tree that generated it, which has a canopy of normal green foliage. Because of this reliance, copies of this mutant growth can not be grown as cuttings. Such cuttings simply could not sustain their own growth. I have made a few unsuccessful attempts to graft this mutant growth onto normal trees. The scions deteriorate before they can graft. I should try again. This foliage really is as strikingly white as it looks in pictures. I am certainly no expert on floral design, and I know that this foliage does not last for long once cut, but I suspect that it would look striking with black bearded iris or black hollyhock, or on a smaller scale, with black pansies or black petunias. Heck, it might likewise be striking with white flowers. In the early 1970s, albino redwoods, which are merely albino sports of normal redwoods, were considered to be very rare, with only a few documented specimens. Although they really are quite rare, many more have been documented since then, and many more, such as this specimen, remain undocumented. I wrote about this albino redwood foliage a few years ago, and was reminded of it by the wildlife photographer of Portraits of Wildflowers near Austin. Except for a few trees that are barely north of the border with Oregon, coastal redwood is exclusively native to the West Coast of California. It is the tallest tree in the World.

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Six on Saturday: Mix It Up

Six pictures can not represent all that is blooming now. I did not even try. Nor did I post six pictures of six different cultivars of the same species, as I typically do with camellias, azaleas, rhododendrons, flowering cherries, roses, or other flowers that we grow several cultivars of. I posted three pictures of bearded iris, but I could have procured more than six if I wanted to. I likewise could have posted more than six pictures of different African daisy. I tried to mix it up a bit more than I typically do, as I did with the snakeroot here.

1. Persicaria bistorta, snakeroot and (likely) Iris ensata ‘Variegata’, variegated Japanese iris from Tangly Cottage Gardening are happy on the edge of the pond. The Japanese iris is barely visible at the center. The rest of it is on the edge of another stream. Naturalized exotic Nasturtium officinale, watercress to the upper right shows how close the water is. I thought that there were two cultivars of snakeroot, but found three labels for ‘Superba’, ‘Firetail’ and ‘Dimity’. I can segregate their copies later, but will likely leave these mixed.

2. Clivia miniata ‘Variegata’, variegated Natal lily from Brent’s Jungalow tried to bloom, but this happened before I took a picture. Its cultivar is unidentified, but it is variegated.

3. Osteospermum ecklonis, African daisy blooms too generously for anyone to take all its flowers. About six cultivars inhabit this particular landscape with a few more in another.

4. Iris X germanica, bearded iris are blooming so tall that some should be staked. There are too many cultivars in the Iris Bed to take pictures of, so I will show only these three.

5. All cultivars of the primary Iris Bed are unidentified. At least three that were relocated from the forest are likely feral. One is pale white. This pale yellow looks like Tweety Bird.

6. All of the iris here, like the iris in my garden, have history. This iris is from the former home of an respected colleague. He brought it to me before the garden was demolished.

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/