Posted on by tonytomeo

Sole Survivor

A few more seedlings of Washingtonia filifera appeared after these pictures were taken, so this little palm is no longer alone.

tonytomeo's avatarTony Tomeo

P00621-1 One is the loneliest number. (It is in the middle of the far edge of the flat.)

By now, I can safely assume that any of the various old seed that were sown late last February that have not yet germinated are not likely to do so. They were all so old that I knew at the time that their viability was questionable. Nonetheless, I could not discard them without confirming that they were no longer viable. Four months later, this empty flat just about confirms it.

So far, the sole survivor is a seedling of a California fan palm, Washingtonia filifera. It looks silly all alone in the otherwise empty flat. Yet, even if no other seedlings germinate, the effort will have been worth this dinky palm seedling. California fan palm happens to be my favorite palm; but I would have been just as pleased with something that…

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Ghost of Weddings Past

Although this particular lily is not performing well in the landscapes, others have actually proliferated more than expected. A few are blooming so abundantly within their now crowded colony that I am considering splitting them this winter.

tonytomeo's avatarTony Tomeo

P00620K Easter lilies are still my favorite of the lilies!

Weddings are normally common at the small historic chapel at work. This is normally the busiest season there. Since the chapel is presently unused, and it will likely remain unused for quite a while, we have not replaced the white pansies, that were out front through winter, with new white blooming warm season annuals for summer. The minimal landscape seems a bit emptier.

A colony of white hydrangeas to the left of the chapel happen to be blooming late this year, as if they know there is no rush. The smaller hydrangeas in the foreground of this colony were not original to the landscape, but were added as they were left behind after weddings. (Florist hydrangeas are innately more compact.) Blue and pink hydrangeas went to blue and pink colonies.

Our chrysanthemums were left behind after weddings too. They were originally…

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Six on Saturday: Like Totally!

Val culture developed within the Santa Clara Valley prior to its assimilation into the San Fernando Valley. I totally know how to use “like” in a sentence, and can do so repeatedly if I like. These Six are not about Val culture during the 1980s though. They are just a few items that are sort of like each other, and five items that I like. Eventually, I will like the item that I do not yet like. Totally!

1. Sambucus nigra ‘Black Lace’ is an ornamental cultivar of European elderberry. As the name implies, it has darkly bronzed and intricately lobed foliage. All but two of the herd of cuttings that I plugged rooted. I wanted a few, but got forty-eight. I was not at all fond of this cultivar or even this species when I met it a few years ago, but I now sort of like it.

2. Clivia miniata, Kaffir lily lacks bloom now, but like ‘Black Lace’ European elderberry, provides colorfully ornamental foliage. It is variegated with these narrow yellow stripes. I believe it blooms orange. I do not know what cultivar it is. It came from Brent’s garden.

3. Canna ‘Stuttgart’, like the Cymbidium and the other two Canna, lacks a species name. Like 1, 2 and 4, it provides colorful foliage. Like 4 and 5, it is a Canna. It has a lot to like. Most importantly, it came from Tangly Cottage Gardening, and is approved by Skooter!!

4. Canna ‘Australia’ might be described like ‘Stuttgart’ Canna above, but is not approved by Skooter. Its colorful foliage is darkly bronzed, but this specimen is striped with green.

5. Canna ‘Cannova Mango’, like 3 and 4, is a Canna, but that is about its only similarity. I do not like it much because it is a modern cultivar, and it blooms with this weird color.

6. Cymbidium orchid, like 3, 4 and 5, lacks a species name. I like it because I have grown it since the early 1990s. Bloom began in March, but is only now beginning to deteriorate.

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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Fruitless Mulberry

Fruitless mulberry is conducive to pollarding.

Even though silk never became a major commodity in North America, it indirectly made an impression on American gardening. The tree that was developed to most efficiently feed silkworms is now among the most popular of shade trees. The fruitless mulberry, Morus alba, wastes no resources producing fruit while providing only abundant foliage, which is the only sustenance for silkworms.

Young trees grow at a good rate to nearly thirty feet tall, and can eventually reach fifty feet. They are often pollarded (pruned severely back to the same burly ‘knuckles’ every winter), which causes them to regenerate stems at an alarming rate during summer. Shoots from mature pollarded knuckles have no problem reaching fifteen feet in all directions! Mulberries incidentally have the distinction of the fastest motion known to the plant kingdom, because they launch their pollen at more than half the speed of sound!

The serrate leaves are quite variable. Those of vigorous young shoots of pollarded trees are mostly about six inches long with rounded wide lobes, but can be nearly a foot long! They turn bright yellow and typically fall neatly from the tree within a limited time in autumn, facilitating raking. Leaves on slower growing stems of lightly pruned mature trees are mostly unlobed and less than six inches long. They begin to fall earlier in autumn and linger over a longer time, sometimes with slightly subdued autumn color.

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Proper Pruning Without Sealing Wounds

As improper as this extreme pruning is, the would will heal more efficiently without sealant.

Sealing pruning wounds with grafting compound or any other gunk, like paint, wax, tar or roofing compound, literally adds insult to injury. Grafting compound should only be used to temporarily limit desiccation while graft unions knit. It eventually flakes off as the affected parts (understock and scion) grow. Because the cut surfaces of pruning wounds do not grow, grafting compound does not flake off right away, so can remain mostly intact for years, retaining moisture and actually promoting rot. Some thick emulsions may even inhibit callus growth over wounds (healing).

Because so many people expect pruning wounds in trees to be treated with some sort of dressing, some tree services apply black spray paint. Most who do so fortunately know that it is best to apply the paint lightly enough to be porous instead of actually sealing the surface. Some use temporary marking paint, which is designed to deteriorate in the weather. (The cut surfaces hopefully darken simultaneously so that no one notices.)

The best way to promote healthy recovery from pruning is to prune properly, leaving no stubs to interfere with compartmentalization (healing). The sort of rapid growth that most efficiently compartmentalizes pruning wounds naturally occurs at branch unions, even after the associated branches get pruned away. This is because the remaining foliage beyond the unions (the parts that do not get pruned away) remain vascularly active and able to sustain such growth. Similar growth at the end of a stub is much slower because there is no foliage beyond.

More often, a stub dies, leaving an obtrusive peg lodged where callus growth should be closing a wound. By the time the stub rots enough to not interfere, rot will have also extended into the union with the supporting stem.

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Horridculture – Bucket of Bolts

Actually, this was not a total ‘FAIL’. The bolted greens were not so bad, and I actually preferred their flavor to milder and ‘better’ greens.

tonytomeo's avatarTony Tomeo

P00425-6 They started out nicely.

Radishes seemed like a good idea back when I sowed the seed in the garden. I had not grown any in many years. I thought that the particular location would be cool enough to inhibit bolting, even though it was starting to get close to the end of their season here. They are definitely a cool season vegetable here, with brief seasons in spring and autumn. Some linger through winter.

The seed germinated efficiently. The seedlings started out well. Radishes are small roots that mature in only about three weeks. Technically, they were right on schedule. I happened to get a few tiny radishes from the batch. However, after the seed were sown, but before the radish roots developed, the formerly cool spring weather warmed suddenly enough to stimulate bolting.

The elongation of floral stalks was visible within the foliar rosettes of most of the individual…

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Yarrow

Yarrow is a popular American wildflower.

It is endemic to every Californian County except for only Imperial County. It is endemic to every American State except for only Hawaii. Yarrow, Achillea millefolium, gets around! It is also endemic to many temperate climates of Europe and Asia. Apparently, it is not very discriminating in regard to climate or soil. It is as happy at the coast as it is farther inland.

Wild yarrow mostly bloom white or with pink blush. Modern cultivars bloom various hues of yellow, orange, red, pink or pinkish lavender. A few of the most florific modern cultivars are hybrids with other species. Phases of bloom might continue from spring until autumn. Tiny flowers form dense corymbs as broad as five inches, on stems as high as three feet.

Ferny grayish or light green yarrow foliage has a softly fine texture. However, it develops compact and mounded form. Individual leaves are tomentous and as long as six inches. Foliar aroma is variable among cultivars. Some cultivars may be objectionably pungent. Propagation by division of any overgrowth is easiest prior to the end of the rainy season.

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Mild Weather Inhibits Summer Growth

Vegetative growth might be atypically slow.

The weather this year has been a cold hot mess! Both the worst frost since 1990 and the worst storms since 1982 occurred in one winter. Then, cold wintry weather lingered into spring to inhibit spring bloom. Now, cool and mild weather of spring lingers into summer to inhibit summer growth. This particular climate is innately mild, but this is a bit too mild.

Technically, the solstice on June 21 is the beginning of summer. Locally though, summer warmth typically begins about the middle of spring. It typically continues into the middle of autumn. Sometimes, it begins significantly sooner or continues significantly later. This is why the warm growing season here is so extensive. It is also why winter is rather brief.

Unseasonably mild weather obviously has a few distinct advantages. It is comfortable for those who are not so fond of summer warmth. It limits the need to increase irrigation that compensates for aridity and lack of rain. Bloom, although potentially late, stays fresher a bit longer with mild weather. A bit less spring bloom becomes a bit more summer bloom.

Unseasonably mild weather also has a few disadvantages though. Less gardening work is needed to manage desirable vegetation. However, more gardening work is needed to manage undesirable vegetation. Weeds generally need less warmth to grow, bloom and seed. Some desirable vegetation is still too complaissant to compete without assistance.

A few other pathogens likewise exploit this unseasonably mild weather. Slugs and snails hide from arid warmth. They must stay within cool and damp situations through midday. Mild weather allows them to stay out later, and emerge earlier. Their favorite vegetation still grows too slowly to recover from their damage. Tropical foliage is most susceptible.

Fungal disease is similarly more problematic with unseasonably mild weather. A primary difference is that fungal pathogens are about as inhibited as vegetation is. They gain an advantage only because soil stays continuously damp longer. Even without automated irrigation, cool soil dries slower than warm soil. Roots consume less moisture while cool. Roots that consume minimal moisture are generally more vulnerable.

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Silver Lining

Three years later, this little tree is not quite so little. It certainly is pretty though.

tonytomeo's avatarTony Tomeo

P00614-1 This little silver dollar tree did well with a second chance.

Among the more than seven hundred species of Eucalyptus, nomenclature gets confusing. It certainly does not help that some species have multiple common names. Eucalyptus cinerea is a rather distinctive species with at least two equally distinctive common names. The problem with these names is that, although sensible in Australian, they are not so sensible to Californians.

‘Mealy stringybark’ is a name that must describe something of the physical characteristics of the species. The bark is rather stringy, but no more stringy than that of so many other species. The glaucous foliage might be described as mealy in Australian English. ‘Argyle apple’ is a weirder name. Again, it must make sense in Australian culture. I just know it as ‘silver dollar tree’.

A few years ago, I acquired a severely disfigured and overgrown #5 (5 gallon) specimen of silver…

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Wasps!

Now that this old article reminds me of this problem, I realize that it has not been a problem yet this year. Perhaps last winter was unconducive to their dormancy.

tonytomeo's avatarTony Tomeo

P00613K Dead wasps are the best wasps.

Wasps, hornets and yellow jackets that get established within landscapes or buildings are a serious problem. They are not so easily avoided like those out in the wild are. They are aggressive to people and pets who get too close to their nests, and attack with painful stings. Such behavior is unacceptable within the publicly accessible landscapes at work.

There are a few species of wasp, hornet or yellow jacket here. We do not get sufficiently acquainted with any of them to actually identify them. Our priority is eliminating as many of them as possible from the landscapes. Some get trapped. Others get evicted from the few nests that we locate. It is unpleasant work, but it is better than others getting stung.

Wasps, hornets, yellow jackets, or whatever they are, become more of a problem later in summer. They are just getting started…

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