Some Seeds Can Hurt Pets

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Foxtail is a potentially dangerous weed.

Weeds always have unfair advantages. They grow fast enough to bloom and disperse seed before the rain of early spring runs out, so they do not need any supplemental water. They seem to be able to grow anywhere. Their abundant seed seem to be able to get anywhere. Many produce seed with creative tactics for hitching rides on animals or being blown around by the wind.

This can be a serious problem for the unfortunate animals that interact with these exploitative weed seeds. Burclover and foxtail that are designed to stick to the short hair of grazing animals just long enough to get moved to greener pastures can get seriously tangled in the softer and longer fur of cats and dogs. Foxtail and other thin seeds can get lodged into noses, ears and eyes.

This is why it is so important to control these sorts of weeds, even if the landscape is not a priority. Gardens without resident cats can be visited by neighbor cats who can be hurt by dangerous weed seeds, or disperse the seed into other gardens. Mistletoe seed is not really so dangerous, but has a sneaky way of sticking to birds and squirrels for dispersion.

Thistles are more of an annoyance than actually dangerous. Their seed does not stick into fur. It just gets blown about in the wind. The problem is that the spiny foliage of some types is too painful to handle. If neglected long enough to go to seed, thistles can be seriously prolific. Because it is dispersed by wind, the seed can get anywhere without any help.

Weeds can be recycled in greenwaste, only because greenwaste gets sterilized in the recycling process. Some annual weeds can be composted if they get collected before they produce seed. If there is any seed, some of it may survive the composting process, and germinate wherever the compost gets used. It would be better to dispose of such risky biomass.

Likewise, crabgrass, dandelion, oxalis and other perennial weeds should not be composted because some of the stolons (modified stems) or roots survive the process. Just like seed, some of these surviving vegetative parts can grow into new weeds wherever the compost that contains them gets dispersed. Such resiliency is one of the qualities that makes them ‘weeds’!

Horridculture – Plastic Is Forever

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Ah, the memories.

Horticulturists are environmentalists by definition. Whether we grow horticultural commodities, install such commodities into landscape, maintain such landscapes and associated trees, or design such landscapes, the vegetation that we work with affects the environment. Many of us should take our innately significant environmental responsibilities more seriously than we do.

We should also be realistic about our environmentalism. For example, there is no problem with designing a landscape that attracts butterflies for a client who enjoys butterflies in the garden. However, we should not promote butterfly gardening as something that benefits the environment and ecosystem by distracting insects from native flowers that rely on them for pollination.

I have never been one of ‘those’ extreme environmentalists. I do not want to save all vegetation. Some trees are too hazardous to those in the landscape below. Some exotic species are too aggressively invasive within a natural ecosystem, and therefore detrimental to the environment. Planting a proper tree where it will be an asset is fun; but too many trees obscure sunlight.

Fake environmentalism made good environmentalism look bad, and is contrary to it. Associated sustainability has become a cheap fad to capitalize on. Sustainably grown produce is pointless relative to the fuel necessary to transport what is grown in remote places, and all the plastic that it gets wrapped in. The volume of plastic needed to make sustainability possible is baffling.

Our compost is not the best, but it is adequately composted. Except for eggshells, the only recognizable bits are non-biodegradable plastics that mistakenly got mixed in, such as small bits of cellophane from the cafeteria kitchens. The most prominently abundant are these small stickers that were originally affixed to individual and mostly sustainably grown fruits and vegetables.

Are so many bits of non-biodegradable plastic so necessary to demonstrate sustainability and environmentalism?

Sticky Monkey Flower

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‘Sticky monkey flower’ sounds too silly.

What a silly name this is! Sticky monkey flower, Diplacus aurantiacus (or Mimulus aurantiacus), is native to a broad range of ecosystems of California and the Northern Coast of Baja California. It is famously happy in situations that are too rocky or sandy for most other species. The resinous foliage really can be rather sticky during warm weather. The relevance to a monkey is a mystery.

Sticky monkey flower is more popular among hummingbirds and insects than anyone else. Those who welcome hummingbirds and insects into their garden happen to like it too. Honestly though, it might a bit too casual for refined landscapes. It works better in or on the outskirts of rustic gardens. If not already growing wild, cultivars and the straight species are available in some nurseries.

Bloom begins late in winter or early in spring, and might continue through summer, but is rarely impressively prolific. The bisymmetrical and tubular flowers are about three quarters of an inch long. Almost all are pastel orange, sort of like circus peanuts. Gold and yellow are uncommon. Supposedly, there are rare cultivars that bloom in red or white. Mature plants get more than three feet tall.

Nature Gets Too Much Credit

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So much of nature is unnatural.

Vegetation make people feel closer to nature. It is, after all, what most of us expect to see out in the wild. Most vegetation that is observed in forests and undeveloped areas really is natural. Much of the associated insects and wildlife are natural as well. Such flora and fauna know how to survive within their respective ecosystems. They can not rely on any unnatural intervention from anyone.

Naturalized exotic (non-native) species proliferate only because they are adapted to similar environmental conditions. A lack of pathogens that afflicted them within their natural ranges is a major advantage for most of them. Nonetheless, they are unnatural components of what is commonly considered to be nature. Most naturalized exotic species actually interfere significantly with nature.

Vegetation and associated wildlife that inhabits synthetic landscapes is very different from that which lives out in nature. Only some of the vegetation has potential to naturalize. Even less is native. Almost all of it is reliant on artificial intervention for survival, particularly irrigation. Associated wildlife is reliant on the survival of the reliant vegetation. Landscapes accommodate. Nature does not.

With few exceptions, landscapes that emulate nature are impractical. Landscapes within forests are some of those few exceptions that might need no more than what the forests provide. Even in such situations, combustible vegetation and structurally deficient trees should be cleared away from homes. In California, nature is innately combustible. It is messy and potentially dangerous too.

Most urban landscapes of California would still be dreadfully bleak if limited to natural components. Both San Jose and Los Angeles are naturally chaparral regions. They were formerly inhabited by sparsely dispersed trees on scrubby grasslands. Now, relatively abundant vegetation in both regions is more appealing, and improves urban lifestyles, but is nothing like what nature intended.

Nature is simply inadequate for what is expected of urban landscapes of California.

Timber!

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This is a bit more than just slightly inconvenient. The trail continues forward from here, with another trail up the stairs to the right.

It is that time of year. Warming weather accelerates vascular activity, which makes foliage heavier. If evapotranspiration is inhibited by humidity and a lack of wind, the foliage can get too heavy to be supported by the trees that produce it. All that increasing weight can bring down big limbs or entire trees at the most unexpected times. The process is spontaneous limb failure.

By ‘unexpected’, I mean that it happens when there is no wind. It is startling because broken limbs and fallen trees are typically associated with wind rather than a lack of it. Gentle wind actually accelerates evapotranspiration, which relives affected vegetation of some of its weight and susceptibility to spontaneous limb failure. Aridity helps too, by absorbing more moisture.

Of course, even a gentle breeze at the wrong time can have disastrous results for vegetation that is already about to succumb to spontaneous limb failure. I suspect that is what happened here, since the air was not completely still at the time. It was just a bit warmer than it had been, and slightly more humid than typical. It is too late and pointless to analyze the situation now.

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This is the top of the stairs that are to the right in the picture above.

At about noon on Thursday, someone who works nearby alerted me to the sound a a big tree falling. I was in the same neighborhood, but was driving by with the radio on. The tree is precisely where I was told it would be. No one was nearby when it fell. Damage was originally minimal, with a portion of trail displaced by roots, and a rail on a bridge crushed by the trunk.

By ‘originally’, I mean that this was not the extent of the damage. After barricading the trails and road leading to the site, and leaving, we heard another loud crash from the same location as a bay tree that had been leaning against the already fallen fir tree collapsed in pieces on top of the whole mess. Fortunately, the damage to the bridge, although worse, is not too terribly bad.

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There is more timber here than lumber. The short section of main trunk is severely fractures. The double trunks beyond are not as big as they look.

Between A Rock And A Hard Place

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Where does this delightful columbine think it is?!

Columbine does not do well here. I do no know why. It does well enough in Colorado to be the Official State Flower there. Yet, the mildest of climates is Colorado are harsher than the climate here. It does not get too terribly warm in summer here. Humidity is minimal, but not as minimal as in much of Colorado. Nor does it exceed that of other regions where columbine does well.

We have certainly tried to grow columbine. It just does not work. Some of it succumbs to powdery mildew. Some succumbs to rust. The last batch just succumbed. Because it was expected, I did not bother to investigate. I got the impression that it was taken out by both powdery mildew and rust. Flowers that bloomed so delightfully when planted went to seed on their way out.

That should have been the end of it. I would not mind if someone tries again to grow columbine for next spring, even if it last for only a short while. I just do not expect to see it ever perform well here. None was planted this year. Even if someone had considered it, there was no need to add any prior to furlough, while cool season annuals for winter continued to bloom so happily.

What I certainly did not consider was the few seed that the last batch of columbine tossed almost a year ago. Apparently, at least one of those seed fell from the ledge where its parent plants lived briefly in now absent planter boxes, and into the edge of a small landscape below. It grew into an exemplary specimen of columbine, which is happily blooming as if it were in Colorado!

It is surrounded by a concrete retaining wall, a perpendicular granite wall and a big granite boulder!

 

Six on Saturday: (First) Rose Parade 2020

 

The landscapes are in surprisingly good condition after more than a month of neglect. Weeds are horrendous, but no more so than expected. They and the lawns are the priorities. Significant progress was made just in the last three days that we have been able to work. As busy as we are, I managed to get some nice floral pictures. Rhododendrons are still blooming, but will be the topic for next week.

1. Of the mere four cultivars here, this is my least favorite. The color and profusion of bloom are excellent. I just dislike how the floral form resembles those of the trendy David Austin roses.P00509-1

2. This cultivar is the only one that is in shrub form. All the others are tree roses (or standards). The profuse bloom resembled ‘Double Delight’ last year, but is completely different this year.P00509-2

3. Close up, it is more rich bright pink than distinctly reddish pink with white. It is fragrant like ‘Double Delight’ should be, although it does not seem to be as fragrant now as it was last year.P00509-3

4. The first (#1 above) is also different from how it bloomed last year. Its petals are not so densely packed. There are plenty of buds behind the maturing flowers. Performance is exemplary.P00509-4

5. Is this purple? Not only is its color odd, but it is grafted onto the same rose trees as the white roses (#6 below). It is too weird for my taste. Everyone else likes it. That is more important.P00509-5

6. As mentioned above, this cultivar is grafted onto the same rose trees as the purple roses (#5 above). To me, it seems to be the common ‘Iceberg’. I do like white, even if it is just ‘Iceberg’.P00509-6

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/

Mock Strawberry

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Potentially invasive mock strawberry fields forever.

The small yellow flowers are the giveaway. Real strawberries have white or maybe pink flowers. Otherwise, mock strawberry, Potentilla indica, looks very much like wild strawberry, with similar small red fruits and neatly serrate trifoliate leaves (that are palmately divided into three leaflets). The berries are edible, but do not taste like much.

Like real strawberries, mock strawberry spreads efficiently by stolons. If watered occasionally and sometimes fertilized, it is probably a better groundcover than the common ornamental varieties of wild strawberry. It is invasive in some areas.

Lawn Loses Some Turf Wars

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Mow Town

As a landscape feature, lawn and turf are in a distinct category. Just as arborists specialize in arboriculture (horticulture of trees), there used to be horticulturists who specialized in turf. Even though it is just as interesting, and in most regards, much more demanding than other plant material, many horticulturists who are not specialists with turf do not want to bother with it.

Turf is undeniably the most useful of all plant material, which is why there is so much of it. Unfortunately, it is also the most demanding. It requires more water than any other plant material, except only for aquatic plants and some bedding plants. (Small ponds with aquatic plants are actually less consumptive than larger lawns.) Mowing and edging needs to be done almost weekly.

All this work and water is probably worth the effort where turf gets the most use, such as athletic fields and parks. Yet, it is good incentive for alternatives where applicable. Larger patios and decks mean smaller lawns, and are usable ‘hardscape’ areas. Less demanding ground cover plants, and even old fashioned gravel and bark, work nicely over unused areas.

Since it was invented for the athletic field of the Astro Dome, artificial turf has had a bad reputation. It did not feel or look like real turf, and eventually succumbed to wear and tear. Realistically though, it worked. The main problem was that it was constantly compared to real turf, instead of recognized as an alternative to turf, like carpeting for garden space.

Modern artificial turf is much more convincing. It actually looks and feels something like turf, and is more resilient to weathering and wear. It is convincing enough to be used for athletic fields and playgrounds. It would be just as appropriate for landscapes inhabited by dogs if the dogs do not dig. Artificial turf can be expensive, but saves so much in water and labor.

Removing a real lawn and leveling the area for new artificial turf can be stressful to the root systems of mature shrubbery and trees around it, and even in neighboring gardens if the lawn is near a fence. Because artificial turf needs no soil amendment, excavation should be minimal. Because it needs no water, artificial turf can be placed right up against tree trunks.

After artificial turf is installed, some adjacent shrubbery and trees may want to be occasionally watered through the first few summers until they adapt to the lack of watering where the former lawn was. Such plants will not need as much water as the original lawn got, and will only need it temporarily if they get enough water in other areas of their roots zones.

Horticulture – It’s What I do.

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Rhody, . . . because everyone loves Rhody, . . . and this is not about horticulture anyway.

This is not a misspelling of a misspelling. There is no misspelling of “Horticulture” in the title this week. “Horridculture” is typical of my rants on Wednesday. It is not the only deviation from the norm here. I included the contraction of “It’s” in the title. I have been trying to relax my otherwise objectionably uptight writing style; but a contraction in the title still makes me cringe.

Horridculture – It Is What I Do Not Do.” would be consistent with my style, but silly, and not so relevant to the subject matter. I am a horticulturist, arborist and garden columnist. I enjoy what I do very much, which is why I made a career of it. It is demanding work though, and does not afford much time for blogging. The quality of my blogging is consequently compromised.

I still work as many as three days weekly at a job that was supposed to be temporary two years ago! It is so excellent that I can not bear to leave, although I must eventually do so. It entails the maintenance of many acres of landscapes and forest at a Christian Conference Center. We have been unable to work for the past month, so will be busier than typical as we resume work.

Mondays and Tuesdays are my days for writing my weekly gardening column. I should probably retire from this work, but enjoy it so much, and would prefer to instead expand it into other publications to fill in the gaps between San Francisco and Los Angeles. I do intend to simplify this writing, even if expanding it; so that I can do it all on Mondays like I used to not so long ago.

For more than the past two years, I have not inspected trees or landscapes for other arborists or landscape professions. There just is not sufficient time! I do miss that work, and composing reports for those who dislike writing. (Arborists and landscape professionals who enjoy their trees and landscapes innately dislike writing.) If I ever resume such work, it will be only rarely.

I intend to eventually return to the farm where I belong, and resume production of horticultural commodities. As much as I enjoy the rest of what I do, growing things is what I do naturally. It is why my ‘temporary’ job was supposed to be ‘temporary’ two years ago. It will involve even more demanding work than what I already can not keep up with, but it is what I need to do.

Therefore, I will have even less time to devote to blogging. I intend to continue to post my brief weekly gardening column in two parts on Mondays and Tuesdays, as well as old articles from the same gardening column in two parts on Thursdays and Fridays. I would also like to continue with Six on Saturday and other brief posts for Saturdays at noon, Sundays and Wednesdays.

I write for my gardening column weekly regardless of the blog. Old articles from the column are already written. Only new posts for Saturdays, Sundays and Wednesdays need to be written separately; so some or all will be omitted if necessary. What I must discontinue now is my involvement with the many compelling blogs that I have been following for the past many months.

I will not stop following any of the blogs that I presently follow. I will just not be able to read all of the posts, or interact with them like I had been. For me, it will be quite a weird adjustment. I feel obligated to read much of what others post into blogs that I follow. If someone puts effort into positing it, then it must be important. I certainly enjoy how others interact with my blog.

I certainly do not want anyone to think that I lost interest in their respective blog. Many of them provide ideas for what I should write about within the context of my own weekly gardening column. Insight into horticulture in other climates, regions and even cultures has been fascinating. This is merely something that I must sacrifice in order to continue on with my own writing.