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Six on Saturday: Vacation

Rhody, Carson and I are finally on vacation in Western Washington. As usual, departure was delayed. Now that we are here, and not at work, I have not been taking pictures like I should have been. Consequently, I am deficient of pictures for Six on Saturday. Four of these six, or two thirds, are not even relevant to horticulture.

1. Sasquatch, who is also known as Bigfoot, is a celebrity of the Pacific Northwest; and is a species that is commonly considered an individual. This was in Canyonville in Oregon.

2. Portland in Oregon is the City Of Roses. This is its South Waterfront district, south of Downtown. Incidentally, most roses prefer the climates of San Jose to those of Portland.

3. Rhody enjoys rest stops. They allow him to renew his ownership of Oregon. This is the Toutle River Rest Area, on northbound Highway 5, north of Castle Rock in Washington.

4. Ferns are common within the coastal climates of the Pacific Northwest. I do not know what this fern is. The pine may be a Japanese red pine. It is in Raymond in Washington.

5. ‘Black Gamecock’ Louisiana iris is to the left within the big box to the right. It was the priority, to replace what the gophers ate last year. There is more now than then! The rest of this vegetation is a dozen or so additional perennials from Tangly Cottage Gardening! I will get individual pictures of some of them as I process them when I get back to work. The unidentified variegated foliage to the far right seems to be variegated Japanese iris.

6. Skooter approves of my exploitation of his garden. He must know that I intend to take better care of his Louisiana iris than I did last year. He was on a sunny porch at the time.

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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Blue Eyed Grass

It is more like an iris (of the floral sort, not the ocular sort) than a grass.

Contrary to its common name, blue eyed grass, Sisyrinchium bellum, is not a grass at all, but is like a diminutive iris. The modern cultivars that are more commonly found in nurseries are somewhat more colorful than the wild plants that are native to coastal areas between about Santa Barbara and Portland. Yet, even these are rather subdued, with small half inch wide blue or light purple flowers delicately suspended above bluish grassy foliage that may be as low as only a few inches, and is rarely higher than a foot. They bloom best in sunny but not too hot areas. Once established, blue eyed grass is not too demanding, but naturalizes and slowly spreads more reliably if watered occasionally through summer. However, they can rot if watered too generously or too frequently.  

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The San Francisco Flower and Garden Show (2010)

(This article is from 2010, so contains irrelevantly outdated information, but the link to the website below is accurate.)

The big Pacific maples outside my window never seem to get enough rest through the brief winters. Not too long ago, their leaves turned yellow and fell during autumn. Their branches were bare for only a short time through the middle of winter. Now their buds are popping open to remind me that it is now early spring. Gardening can no longer be put off because the weather is too cool and rainy to go outside, or for that matter, because it is too cool for the various plants to be actively growing and in need of much attention. Gardening now becomes a rush just to keep up with all that is going on, and to not miss out on the many excellent gardening events this time of year.  

The San Francisco Flower and Garden Show, the grandest of these events, has already begun and will continue though March 28 at the San Mateo Event Center. More than 70 seminars feature topics such as sustainability in the garden, edible gardening, new plants, garden design, container gardens and water conservation. Guests can also learn how to create bonsai, build trellises, grow orchids, prune properly and how to determine what plants are best for each garden. Sproutopia has fun and educational activities and entertainment for young children.

There are also many displays exhibiting everything from garden sculpture to victory gardens. The pocket parks and container garden display shows the potential of gardening with limited space, or with little time to devote to gardening. The Bonsai Society of San Francisco is exhibiting impressively mature bonsai specimens, and demonstrating bonsai techniques. Flower Lane exhibits floral design by California Garden Clubs. Hot Plant Picks displays some of the most recently introduced or developed plants. Some are still too new to be available in nurseries yet.  

Gardens for the Future, the twenty display gardens that are the most prominent component of the San Francisco Flower and Garden Show, illustrate themes ranging from simple and refined to opulent and lush. ‘Velvet Daggers3’ may be my favorite because it “suggests that we seek out new applications of simple technology” and “demonstrates the beautiful qualities of xeric plants” (yuccas perhaps!?). ‘Pulling Up Daisies’ defies conventional thirsty lawns and consumptive landscaping, suggesting evolution of environmental compatible landscaping with natives. “The use of native plants makes ‘Native Garden 3.0’ a model of sustainability.” These are merely three of my favorite gardens. There are seventeen others that are worthy of more theatrical descriptions! 

The San Francisco Flower and Garden Show will be open from 10:00 a.m. to 8:00 p.m., except on Sunday, March 28, when it will close two hours earlier at 6:00 p.m.. It is at The San Mateo Event Center, which is located at 2495 South Delaware Street in San Mateo. Admission is $20 for all five days, or $4 for youths sixteen years old and younger. Children four years old and younger are free. Student admission is $15 with valid student identification. After 3:00 p.m., or 2:00 p.m. on the last day, half day admission is $12. More information can be found at www.sfgardenshow.com. 

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Winter Flowering Cherry

Such bloom seems a bit early.

Its name describes it simply. Winter flowering cherry, Prunus X subhirtella, is a flowering cherry that blooms for winter. It is more popular where winters are cool enough to inhibit other bloom. It is less common here only because of other options for wintry floral color. Besides, slightly more floriferous flowering cherries bloom almost immediately afterward.

WIntertime bloom is actually a bit more reliable here than where it is more popular. Frost is too mild locally to damage it much, and mostly occurs earlier. Rain is mostly too light and too brief to dislodge much of the bloom. Bloom is a bit less profuse than that of other cherries because it is a bit more continuous. Therefore, it recovers from minor damage.

The relatively common sort of this uncommon flowering cherry blooms for late winter. Its bloom is slightly lavenderish pink. Some rare cultivars can bloom as early as autumn or as late as spring. A few are pendulous. Floral color ranges from white to pink. Floral form is mostly single but can be double. Deciduous foliage turns yellow or orange for autumn.

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Force To Be Reckoned With

Flowering quince is conducive to forcing.

Winter flowering cherry, flowering quince, witch hazel and forsythia are finishing bloom. Later types of flowering cherry and flowering quince bloom immediately afterward. Lilac, redbud and weigela bloom only slightly later. Flowering crabapple extends the season of such flashy early bloom. It is relatively easy to force any of these for even earlier bloom.

Forcing is more popular where cool weather inhibits bloom through winter. It accelerates bloom simply by exposing it to home interior warmth. Bulbs that remain dormant in cold gardens bloom sooner in warm homes. Winter is the most popular time for forcing bulbs. It is now time to force formerly dormant deciduous stems to bloom a bit earlier for spring.

It is less wasteful to force deciduous stems to bloom than to force bulbs to bloom. Bulbs rarely survive because they exhaust their resources without replenishment. Those that do survive and have potential to bloom again may take a year to recover. Bulbs are not cheap. Deciduous stems are free, and are as disposable as other popular cut flowers.

The most popular stems to force are the fruitless counterparts of fruit trees. This includes flowering cherry, flowering crabapple and flowering quince. Flowering quince is actually not closely related to fruiting quince though. It also includes flowering apricot, flowering plum, flowering peach and flowering pear. Flowering pear is likely to smell badly though.

Stems from deciduous trees that actually produce fruit are just as easy to force. They are only less popular because they are not bred to be as pretty. Also, removal of their stems compromises fruit production. Those who plan to force such stems can leave a few extra during dormant pruning. Collection of stems should not damage or disfigure the source.

Stems are ready to force when their floral buds are just about to pop. Ideally, some buds should be slightly exposing their floral color within. A few flowers could be blooming. At that stage, bloom accelerates significantly in response to home interior warmth. Aridity can desiccate larger blooms. Otherwise, wisteria, dogwood, deciduous magnolias and perhaps azaleas are conducive to forcing.

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Dual Citizenship

As brightly colorful as Persian buttercup is, I still prefer white.

French peony Persian buttercup was added to one of our landscapes last year. They are not two different perennials, such as French peony and Persian buttercup. They are a group of cultivars of one species, Ranunculus asiaticus ‘French Peony’. Ranunculus asiaticus is the species of Persian buttercup. ‘French Peony’ is its cultivar.

So, is it French or Persian? Well, yes.

Ranunculus asiaticus, Persian buttercup is native to Southwestern Asia, Southeastern Europe, Northeastern Africa and elsewhere within the Mediterranean Region. This range could potentially include the Southern Coast of France within the Mediterranean Region, but much more likely includes Persia within Southwestern Asia. My guess would be that Persian buttercup is as Persian as its name says it is.

‘French Peony’ is a group of cultivars that could have been developed anywhere and given an appealing name that promotes its marketability, but was most likely developed in France, where most breeding of this particular species was done. My guess would be that ‘French Peony’ is as French as its name says it is.

Of course, French peony Persian buttercup could have been developed anywhere, even Persia, and merely given its appealing French name without actually being French. Alternatively, it could have been developed completely in France, from Ranunculus asiaticus from the Southern Coast of France, without actually being Persian. For that matter, it could have been developed in Greece from Greek stock.

To me, French peony Persian buttercup seems to be chicly cosmopolitan. I remember it as popular for urban window boxes within the greatest cities of the World, such as San Jose, Oakland and San Francisco. If I had not seen that it is also popular in Reno and Portland, I would consider it to be as Californian as so many other exotic species and varieties that are popular here.

These would be nice for Ronald McDonald’s garden.
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Design and Implementation

This exposed urn looks like a koala tummy.

This is so silly that I sort of like it. I mean, I found it to be sufficiently amusing to get a picture of it to send to Brent. It is a nice large urn, with an Aeonium arboreum that is a bit bolder than any of mine, and delightfully blue Senecio mandraliscae. It has nothing else going for it, but perhaps its simplicity is an asset. It might look junky if it contained any other well planned but comparably maintained material.

My only personal criticism of its design is that it is located on otherwise useful pavement, where pedestrian traffic must divert around it; but I am merely a horticulturist, not a landscape designer. For all I know, it could be there to intentionally soften the expansiveness of all that useful pavement, without occupying too much of it. I would also say that the urn should be outfitted with species that are more tolerant of the partial shade of its particular exposure, but obviously, these two simple species are reasonably happy there.

My more realistic criticism is of its implementation. Is it really too difficult for so-called maintenance ‘gardeners’ to maintain this as the landscape designer who designed it thought they should be able to? Must landscape designers design their landscapes with the expectation that their work will not be maintained as expected? Although it is delightfully silly, it might be more visually appealing if the Senecio mandraliscae cascaded a bit more over the edge. Alternatively, it could be confined to the upper surface of the urn if a third perennial were allowed to cascade somewhat over the edge; but again, I am no landscape designer. The urn is nice, but might be nicer with a bit of foliar color, form and texture over some of its exterior.

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Six on Saturday: 6 X

Rhody, Carson and I are still here. We should be in Washington now. We were supposed to leave at about midnight between last Tuesday and Wednesday. Now, we plan to leave at about midnight between Sunday and Monday, and stay in the Pacific Northwest for as long as initially planned. I wrote about the delay earlier. It is why I posted no pictures of our trip yet. Instead, there are three ‘X’s and three eXotics, although the last might really be an undocumented native species. The first three ‘X’s are between generic and specific names of three interspecific hybrids. By next week, I should get six pictures from Oregon and Washington. Incidentally, the Official State Flower of Washington was nicely named after Rhody.

1. Prunus X subhirtella, winter flowering cherry was featured for the garden column last week, or later in some papers. This picture was not used. I did not want it to go to waste.

2. Pelargonium X hortorum, zonal geranium is nothing special, but I happen to like this red too much to discard it after it was clobbered by a car. I can only hope it was a Buick.

3. Freesia X hybrids, freesia is likewise nothing special, but got my attention just after I mentioned feral freesia in the garden column. It is misplaced but too colorful to be feral.

4. Vinca major, greater periwinkle is an aggressively invasive naturalized exotic species. Less pretty aggressively invasive naturalized exotic species would replace what I remove.

5. Allium triquetrum, wild onion is supposedly another aggressively invasive naturalized exotic species. It is so established that I had always considered it to be a native species.

6. Thuja plicata, Western red cedar is supposedly a naturalized species, but could be an undocumented native species. No one seems to know; but it is not aggressively invasive.

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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Victorian Box

Victorian box does not get too big.

In the right situation, Victorian box, Pittosporum undulatum, is a nice small to mid-sized shade tree with dense foliage, sculptural branch structure and pleasantly fragrant spring bloom. In the wrong situation, it drops enough leaves, flowers and sticky seeds and bits of seed capsules to make quite a mess. This finely textured and sometimes sticky debris is easily absorbed into thick, shade tolerant ground cover like Algerian ivy, but is difficult to rake from pavement and to clean from roof gutters. Besides, even though Victorian box is not a large tree, the roots can eventually become aggressive enough to displace pavement.  

Young trees grow rather vigorously to about ten feet tall and wide, and then slow down somewhat as they continue to grow to as much as three times as tall and wide. They are easily contained with occasional selective pruning. The small, clustered flowers are not as impressive as their fragrance, adding only a bit of pale yellowish white color over the exterior of the rounded canopy. Some people, as well as birds, like the greenish olive-sized fruit that turns orange and eventually splits open to reveal sticky orange seeds within. (‘Pittosporum’ translates into ‘sticky seed’.) Leaves are about two or three inches long, or longer, with ‘undulating’ margins.