Horticulturists are by nature, nonconforming. I happen to find it difficult to conform to what makes us nonconforming. Trends are fleeting. Old technology that has worked for decades or centuries is still best. Although I am not totally against chemicals, I find that almost all are unnecessary for responsible home gardening. Pruning is underappreciated, and fixes many problems.
Georgia O’Keeffe made jimson weed flowers famous. Within the context of her paintings, they seem to be angel’s trumpet flowers. Californians know its species as sacred datura, Datura wrightii. It is as native here as where Georgia O’Keeffe observed and painted it in New Mexico. For refined gardens, though, it is rare. It lives almost exclusively in the wild.
There are a few reasons for this. Sacred datura is a sloppily sprawling perennial that can quickly grow eight feet wide. It is not reliably perennial though. It might perform for only a single season, and then suddenly die. The spectacular flowers close through the middle of the day. Seed capsules are annoyingly bristly. Worst of all, sacred datura is very toxic.
Otherwise, sacred datura is as appealing as Georgia O’Keeffe depicted it to be. Its grand flowers resemble those of angel’s trumpet. They stay open longer during cool and damp weather. Foliar color is creamy white, perhaps with a slight lavender blush. Fragrance is mild only because bloom is so close to the ground. Big specimens can get three feet tall. The foliage has a velvety texture.
Spring is when most rodents are most active. Although they do not hibernate locally, they are a bit less active through winter. Their activity increases with warming spring weather. Their progeny increases their population. Assorted fresh vegetation that sustains them is most abundant. Their activity decelerates slightly through summer because of predation.
Although they may be no more active now than they had been, their activity is changing. Rodents are aware that it is now autumn, and that they must prepare for winter. They eat seeds and fruits that are naturally available at this time of year. Some rodents store food. It is no coincidence that vegetation naturally provides what they need, when they need it.
For example, oaks exploit the natural activity of squirrels for the dispersion of their seed. Annually, they produce acorns to sustain a particular population of squirrels. Then, every several years, they produce too many for the squirrels to eat. The squirrels naturally bury more acorns than they can retrieve later. The surplus acorns remain buried to germinate.
Similarly, rodents consume autumn fruit, such as apples and pears, and store their seed. They are likely less numerous than they were earlier in the year, but consume more now. They naturally fatten up so they may eat less while food is less abundant through winter. Also, they naturally migrate from gardens into warmer and drier home interiors for winter.
This is one of several reasons why sanitation within the garden is so important. Removal of unharvested fruit makes gardens less attractive to rodents. They may find sustenance on compost piles, but may not dig too deeply into them. Deteriorating pruning scraps can provide them with shelter from weather and predators. Cleanliness is a deterrent to them.
Deterrent is safer than eradication. Traps and poisons are potentially dangerous for pets and people. Poisoned rats and mice may poison predators or scavengers who eat them. Cats are very efficient at both deterrent and eradication of rodents. However, they require major commitment for many years. They can do nothing outside if confined to their home.
Rhody, Carson and I took Highway 101 for most of our recent trip from here to the Los Angeles region. We typically drive on more of a variety of highways between here and there, but for this trip, I wanted to drive on Highway 101, as was more typical when I was in college in the late 1980s.
Rhody enjoys rest stops, perhaps as much as our destinations. Because the rest stops near Gaviota remain defunct, only the Camp Roberts Southbound Rest Area was in service on our route. We stopped there, of course.
The old facilities that I remember were replaced years ago. I would prefer the old original buildings. I can not imagine why replacement was necessary. Nor can I understand why the more elaborate associated landscape was necessary. This new landscape, with its cliche crape myrtles, carpet roses and a bit of lawn, is irrigated so generously that the old coast live oaks are deteriorating and succumbing to rot. Most are now surrounded by irrigated lawn, after surviving with only annual rainfall for half a century or so. Like so much about California, not much of the familiar remains.
However, besides the deteriorating mature coast live oaks and a few seemingly younger California sycamores that are also within the landscaped areas, a few familiar native oaks remain beyond the landscaped area. Some seem to be older than those within the landscaped area, and if so, were there prior to the development of the rest stop. Most are coast live oaks, and a few are blue oaks.
I met the blue oak in the picture above in 1985. Although it has not grown much since then, the disproportionately large cavity within its trunk has. I am impressed that the trunk can still suspend the healthy foliar canopy above.
‘A’ or ‘co’? What is the better prefix for ‘locasia’? There are certainly differences between the two, but information regarding such differences and characteristics is confusing and potentially misleading. It is amazing how much less information is available now that so much more information is so much more available than it has ever been before.
Alocasia generally develops big leaves that point upward. Colocasia generally develops big leaves that point downward. Alocasia prefers a bit of partial shade. Colocasia prefers more direct sunshine. Alocasia generally has more colorful leaves. Colocasia generally has bigger leaves. Of course, these are generalizations, and some species of each of these two genera seem to be species of the other genus.
Colocasia gigantea supposedly develops the biggest leaves and can get twenty feet tall. Alocasia macrorrhiza supposedly is the biggest of its genus and can get fifteen feet tall. It is difficult to know what to believe.
One the edge of a pond at work, we would like to grow whichever of these massive perennials develops the biggest leaves. If we grow Alocasia, we can put it in a partially shaded situation. If we grow Colocasia, we can put it in a sunnier situation nearby. If we grow Alocasia, we can put it a short distance from the edge of the pond. If we grow Colocasia, we can put it right at the edge of the pond. We only need to know which cultivar of which species of which genus we should grow.
I am inclined to grow Colocasia gigantea. We have a few months to decide, since we do not want to plant it during autumn or winter. We recently acquired this Alocasia odora. Also, another similar but unidentified perennial that seems to be a Colocasia must be relocated from another disproportionately compact landscape.
Ilex opaca, American holly would have been a better topic for Six on Saturday this week. Woodland Gnome of Our Forest Garden sent me six seedlings from Williamsburg! They are now happily canned. I will share their pictures next week. For now, these are a few of the many goodies that I brought from Southern California. I sadly needed to go there for a memorial for an old college friend.
1. Carson is a 1994 Buick Roadmaster touring sedan, not a pickup. He diligently brought all this from Southern California anyway. It includes so much more than these six below.
2. Pimenta dioica, allspice is apparently quite rare. Brent had me trim his so that I could process these scraps as cuttings. However, it is dioecious, so requires a mate to set fruit.
3. Solandra maxima ‘Variegata’, variegated cup of gold vine was acquired in accordance with one of our collegiate traditions; theft. I processed these two scraps into six cuttings. Incidentally, I was uninvolved with its initial acquisition. I will merely grow the cuttings.
4. Nephrolepis exaltata ‘Variegata’, variegated Boston fern or tiger fern is a smaller copy of the mature specimen that provided picture #4 of my Six on Saturday of last Saturday.
5. Hedychium coronarium ‘Variegatum’, variegated white butterfly ginger should bloom with white flowers comparable to those of white butterfly ginger from Woodland Gnome of Our Forest Garden. However, I suspect that it is actually ‘Tahitian Flame’ with peachy bloom. To its right, Alpinia galanga, galangal is a culinary ginger with mundane bloom.
6. Canna of an unidentified cultivar is likely the most important of all these acquisitions. It was acquired by the same means as the variegated cup of gold vine #3, but worse. It is from the Baptist Church that hosted the repast for the memorial of our deceased friend.
One of the less common and certainly least familiar of junipers happens to be the most culturally and environmental significant juniper in North America, even though it is not even known as a juniper. Juniperus virginiana is instead known as the Eastern red cedar. It has a vast range, including every state east of Colorado, as well as Quebec, Ontario and even Oregon to the west. In some areas within and near the natural range, fire suppression has allowed Eastern red cedar to become invasive.
Mature trees are mostly less than fifty feet tall, but are the biggest evergreen trees in Kansas nonetheless. The largest Eastern red cedars can get almost ninety feet tall. Most are well branched from top to bottom unless pruned for clearance. The fibrous bark is ruddy brown, but not often seed from the outside.
Foliage and fruit are rather variable. The prickly juvenile leaves of young plants and interior stems of mature plants can be rather annoying. The scale-like adult leaves are more typical of junipers. Male trees produce pollen that can be a significant allergen. Female trees produce sporadic, small berries in blue or purplish black, that are quite popular with certain birds through winter.
Prior to the discovery of the incense cedar in the west, Eastern red cedar was the common aromatic cedar that was used to make pencils and to laminate cedar chests and closets to protect woolens and natural fibers from moths. Since it is so repellent to insects and decay, it is commonly used as fence posts. Native American Indians also used posts of Eastern red cedar, painted red with blood of the animals they hunted, to mark the boundaries of their hunting ranges. The name of Baton Rouge, which means ‘red stick’, was actually derived from such marking posts.
During the Dust Bowl drought of the 1930s, and before becoming known as a potentially invasive species, Eastern red cedar was promoted by the Prairie States Forest Project as a resilient wind break. They tolerate drought, harsh exposure and inferior soil. They can be planted close together to fill out and gain height more efficiently. More information about Eastern red cedar can be found where I got much of this information, at the Great Plains Nature Center.
Firewood must be seasoned by now. Fresh wood will be seasoned for next year.
There are several reasons why fireplaces are not nearly as commonly used as they once were. Modern building regulations have prevented construction of newer fireplaces (except pellet stoves). Many fireplaces that were ruined by the Loma Prieta Earthquake were never replaced; partly because there are other more efficient sources of heat, and partly because of the concern of air quality. The fuel that was once relatively easy to obtain from orchards that were getting removed to relinquish their land for urban development has been exhausted.
Regardless, those of us who use fireplaces need to be certain that they do not become overwhelmed by trees or climbing vines. Cypress, cedars, pines and some fan palms are remarkably combustible and hazardous when they get too close to chimneys, particularly if the roofs below are covered with old fashioned cedar shingles.
All trees and vines should be pruned away from chimneys so that they are out of reach of sparks and heat. The more combustible trees should get more clearance than deciduous trees (that are bare through winter) need. Nearby Monterey pines, Cypress and any trees that tend to accumulate debris should be groomed of debris, even if their limbs are already pruned back for sufficient clearance.
Trees should also be pruned for clearance from roofs and gutters; and any accumulated debris should be removed. Even before the weight becomes sufficient to cause damage, the motion of limbs in the wind is abrasive to roofs. Older roofs, particularly cedar shingles, will deteriorate under any accumulation of organic debris, particularly as it gets wet from rain.
Dinnerplate dahlias should be about ten inches wide.
Mail order scams are a topic that I have been avoiding. I do not want to consider that some of a few items that I purchase by mail order may not be what they were sold as; and, if so, I will not know until they grow, bloom or produce fruit. Furthermore, I want to believe that if such items are not what they were sold as, that the situation is merely accidental.
This was no accident.
It began with the purchase of thirty rhizomes of ‘Red King Humbert’ canna last year. They were the cheap sort that become available after their primary season. I did not expect them to be of exemplary quality. Nor did I expect them to bloom. I only wanted them to grow a bit during the remainder of their season so that their rhizomes could survive winter dormancy to grow and bloom for the following season, which would have been last spring.
They grew as expected, but seemed to be virused. I tried to believe that the supplier would not send me virused stock, and that the striations of their foliage were normal. However, as growth resumed last spring, the foliage was very obviously virused.
Also, as they grew, they were very obviously not ‘Red King Humbert’. They grew only about two feet tall, and bloomed with scrawny orange flowers. ‘Red King Humbert’ gets about six feet tall, with big and billowy orangish red bloom.
The supplier gave me a credit for the expenditure, to spend on more of their products, I should have requested a simple refund. Instead, with the credit and a slight bit more for the difference in price, I purchased two dozen rhizomes of assorted dinnerplate dahlias.
As with the canna, I did not expect exemplary performance from these dahlias so late in the season. I only wanted them to survive and grow enough to store enough resources to survive their winter dormancy, to grow and bloom for the next season.
Most were completely necrotic and mummified upon arrival. Because this was after my experience with the canna, the supplier agreed to refund what I spent, but then only refunded a random amount of a dollar and a few cents. When I asked about the refund, I was informed that it was comparable to the cost of the one rhizome that I sent a picture of, as if I was expected to send a picture of every rhizome that I wanted a refund for. I explained that almost all of the rhizomes were comparable the the one that I sent a picture of, but received no more response.
I still have heard nothing about it. I decided to be satisfied with the few rhizomes that survived, and just accept the loss. The time that I had already wasted on pursuing a refund was worth more than any refund that I would have gotten.
So, . . . a few of the dinnerplate dahlia rhizomes survived and generated a bit of growth to partially recharge their resources prior to their next dormancy. Two actually bloomed. Apparently, these are very special dinnerplate dahlias. Instead of producing blooms that are about ten inches wide, the largest bloom is less than three inches wide. I have never seen such a dinky dinnerplate.
Maple sugar production has not always been exclusive to northeastern North America. In fact, it is not exclusive to sugar maple. Big leaf maple, Acer macrophyllum, also provides maple sugar in British Columbia. It is native from the southern extremity of Alaska to San Diego County. Most of its range is generally coastal but also includes the Sierra Nevada.
Bigleaf maple is one of merely two native maples here. It is more common within riparian ecosystems and at higher elevations. However, it is rare among home gardens because it is so vigorous and grand. Its aggressive roots eventually buttress, and are likely to ruin lawns and pavement. Autumn defoliation of big trees releases big volumes of big leaves.
Bigleaf maple can grow almost fifty feet tall and wide within sunny suburban landscapes. It can grow a hundred feet taller where it competes for sunshine within coastal forests! Its palmately lobed leaves are typically wider than six inches. They can be twice as wide on vigorous stems. Foliage turns yellow for autumn. Seedlings might be annoyingly prolific. Local climate is unfortunately not conducive to practical sugar collection and refinement.
Fireplaces and wood stoves are not completely obsolete. They are merely less common than they were years ago. Modern building codes prohibit them within new construction. For some that incur damage from earthquakes, removal is more practical than repair. Not many people use fireplaces and wood stoves nowadays anyway. Nonetheless, a few do.
Sources of firewood have also changed. Displacement of orchards and forests by urban developments had been reliable sources. Such orchards are now gone. Forests are now farther away, and protected from harvest. Instead, most wood fuel is now obtainable from the tree service industry. Scrap from tree maintenance and removal converts to firewood.
Unlike uniform firewood from former orchards, scrap wood is variable. Orchards produce only one type of firewood from their unvaried trees. Firewood from forests involves only a few species that may remain separate for sale. Scrap wood can include any species that a particular tree service encounters. Except for larger volumes, separation is impractical.
The tree service industry provides less firewood than displaced orchards and forests did. However, nowadays, less firewood is necessary. There are many more homes here than years ago, but very few consume wood for heat. Residents who choose to burn firewood are now generally less selective. Yet, some might separate mixed firewoods accordingly.
Tree services prefer to leave firewood where it lands. They charge for removal of excess firewood. They typically cut logs to firewood lengths, but do not split them. Neighbors are therefore sometimes pleased to share wood from removed trees. Tree services sell wood that they must remove, after splitting and seasoning it. They typically charge for delivery.
Firewood for this winter must have seasoned by now. Most types should have sufficiently seasoned if cut and split before last spring. Fresh firewood can not season so late during increasingly cool and damp weather. Scrap from winter pruning can become firewood for next winter. Palms and other monocots do not produce actual wood that burns efficiently.
Tony Tomeo 