Soil Compaction: Don’t Forget this Silent Killer

By | Arborist Insights, Landscaping, Lawn Care, Mulch | 2 Comments

Study the dead tree pictured below. What’s wrong here?

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A heavy ride-on Deere mower has gone over the area very efficiently, riding right over the root zone. That means less line trimming. Perfect for the municipal workers maintaining this park. The operator does this every ten days or so. But wait. What about the tree itself? The tire tracks point to a deadly condition: soil compaction! (The pictured tree is dead. Was it soil compaction that killed it? Or bored ball players from nearby baseball diamonds? Campers building illegal fires with poached tree branches? Line trimmer damage?)

The 4th edition of Arboriculture defines compaction as the breakdown of soil aggregates. Compaction decreases total pore space in the soil. When large pore spaces are compressed, the resistance to root penetration increases.

The results of compaction?

  • Slow water infiltration
  • Poor aeration
  • Reduced drainage
  • Impaired root growth and activity
  • Increased erosion
  • Mycorrhizal activity declines

Basically, with compaction the tree struggles to obtain water and oxygen, roots can not grow as easily and since water can’t penetrate it runs off, causing erosion on the surface.

The top 4 inches of soil are usually the most affected; the greatest compaction occurs about 0.75 inches below surface.

At the September 2015 Can-West Horticulture Show in Abbotsford, Dr. Kim Coder relayed to us a story about a group of green activists who campaigned to save an ancient tree. They assembled at the base and did what they had to do, never noticing the serious compaction they were responsible for over the root zone. If I recall the story correctly, the tree declined and eventually died.

Think about soil compaction and avoid it! It’s hard work rehabilitating compacted soils. For best results create a nice tree well and mulch it with arbor chips. Many tree companies are happy to donate their wood chips. Problem solved.

 

Tree Born to be a Landscape Specimen

By | Arborist Insights, Landscaping, Plant Species Information, Species | No Comments

While blowing a strata site on a recent sunny December afternoon, I almost tripped on a huge cone. Intrigued, I smuggled it home past my wife in a lunch bag.

Using my trusted Sibley guide to trees by David Allen Sibley and Google, I found out it was a female Cedrus deodara cone. Deodar cedar is a Himalayas native. According to the Arbor Day Foundation website, www.arborday.org, this tree was born to be a landscape specimen. It has elegant pendulous branches, attractive coloring, pleasing shape and interesting branching patterns.

Tree guru Michael Dirr calls the deodar cedar “the most graceful cedar”. It tolerates drought but it’s not really suited for cold zones. The needles are bluish-green or silvery with sharp tips usually borne in clusters, smaller toward twig tips. The needles are shed in spring as new growth appears.

The cones are upright like in firs (Abies) but stouter and they disintegrate over winter, leaving an upright central spike.

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Needles in clusters

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Female cone, upright

Red Seal Vas on periodicals

By | Arborist Insights, Landscape Industry, Landscaping, Magazines, Resources | No Comments

As the 2016 season approaches, I try to finish my dusty magazines from last year. Below are the key periodicals I read. Because my budget is limited, I subscribe to some and buy interesting issues from the others. What do YOU read?

Horticulture Magazine (USA)

It has nice detailed plant and how to articles. I get the digital version because shipping for paper copies to Canada is too high. Lee Valley sells paper copies in the store

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Arborist News (International)

This comes bi-monthly and is included with your ISA membership. It’s the main magazine for arborists. Includes quizzes, scientific tree articles and book reviews.
Warning: ISA also publishes a book catalogue full of great but pricey books. I never seem to have the budget for everything on my wish list.

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Gardenwise, Canadian Gardening and Garden Making (Canada)

Good coverage of Canada. The best part of Gardenwise is the chores page that outlines what to do in your garden for a particular month. Garden Making is the newest and prettiest of the three. It has nice how to articles and lots of plants.

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Fine Gardening (USA)

Great photos but this magazines can seriously add to your food bill as you throw it into your food cart. Covers all of USA so my interest is in the Pacific Northwest. I enjoy the how to articles on pruning. Plenty of botanical names.

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Landscape Management (USA)

A magazine for landscape company owners and managers. The most interesting issue is the one with top annual revenues. The numbers will blow you away.
You can get it for free if you own a landscape company in Canada. You can also check out the online version at www.landscapemanagement.net.

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Success magazine (USA)

Every issue comes with bonus audio CD. I listen to it on the way to my sites. Articles cover important topics related to business and personal success. I am also a fan of publisher Darren Hardy. His book “Entrepreneur Rollercoaster” is a must read. Darren also has a daily blog you can subscribe to. Available at local stores.

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What do YOU read?

On Effective Supervision

By | Landscaping | No Comments

Vas on effective supervision

 

One day in the field this past summer, I was forced to attend to another task ( backpack blow) which meant that my under-performing, trained worker had to be on his own. Fortunately, his bedwork was in a defined circular bed, he had clear time parameters, his progress was measurable in green waste generation and quality (weed-free bed), and, big bonus, cell reception was extremely poor (his lonely out of town girlfriend had to wait). Then it hit me and a blog was born. This was a perfect effective supervision case study.

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For best results in landscape maintenance, the crew foreman should always attempt to keep his workers together. Tasks and tools can change hands but the crew sticks together. Splitting up can result in loss of control for the foreman in charge. We need results.

But what if you can’t be there? The boss shows up or strata president comes in with a pressing landscape emergency. Now what? Keep the following five points in mind.

  1. The workers must be trained to perform the assigned tasks. This is critical. We can’t leave them if they can’t do the work
  2. The work should be in a defined location, for example units 1-10, front entrance, or a circular bed. This keeps it simple for the workers and for the foreman. Spell out your expectations.
  3. The workers should be given clear time parameters. In this case we had roughly 90 minutes which was generous for one circular bed planted with native species.
  4.  Work progress should be measurable, in the volume of green waste generated or in the number of strata units completed
  5. Check all work when you return and give constructive feedback. Stick together as you continue with your maintenance work. Feedback is also critical.

 

Now go deliver Proper results for your clients!

Meet journeyman Todd Major

By | Interviews | No Comments

This blog is a treat.  I am still upset about narrowly missing Todd at last year’s Can-West urban forestry symposium in Abbotsford.  I was able to at least send him a few questions which he generously answered. I believe every landscaper and green professional needs to have one experienced journeyman in his or her network. It turns out that my municipal boss from 2014 once apprenticed under Todd and she had lots of great stories to share. Enjoy.

 

Vas: I know you are an experienced journeyman, teacher and North Shore News writer. Can you briefly tell us about yourself?

Todd:  I have worked within many specific fields in horticulture over my 28 year career. I started out as a landscape builder on large townhouses and apartment projects installing all hardscape and softscape features. I was a certified climbing arborist but left that work because it involved killing more trees than saving trees. I worked as a grower of ornamental and food crops in glass greenhouses, polyhouses and on a small farm.

 

I was the Garden Director of the Park and Tilford Gardens in North Vancouver where we developed and maintained the 3 acre botanical garden with its six distinct theme gardens, two greenhouses and the commercial landscape of the Park and Tilford Shopping Centre. At Park and Tilford along with my administrative and business responsibilities, I was also the chief field instructor for students from Capilano College whom trained with us to learn practical horticulture skills.

 

For a short time I was associate editor of Landscape and Groundskeeping magazine and for several years I was the editor of the Vancouver Rhododendron Society newsletter called “Indumentum”. I am the co-creator and former chief instructor of the Horticulture Training Program at the University of British Columbia Botanical Garden and Centre for Plant Research. I was the gardening columnist for “Dig Deep” in the North Shore News for 11 years but I left that job in December 2015.

 

I worked as the Manager of Parks Planning and Design for the City of Port Coquitlam where I co-designed and project managed the RailSide Skatepark, park upgrading, drainage, road construction, sport field construction and project management of the Gates Fieldhouse building among other projects.

 

Throughout many of those years I have run my own landscape design and construction business creating sustainable outdoor living spaces for residential clients. I have also been a curriculum expert, contributing content writer and chair of the provincial Trade Advisory Committee for practical horticulture apprenticeship in British Columbia. I could go on but that’s probably enough.

Vas: One of my former municipal bosses apprenticed under you at the Park and Tilford Gardens and she told me many great stories. Are you still teaching and sharing your knowledge?

Todd: Not as much as I would like to but I am currently looking for opportunities to write, teach and mentor horticulturists, gardeners and the general public. Whether that be writing for a magazine, organization, company, blog or website. Or hands on working and teaching.

Vas: What projects did you work on in 2015?

A fair bit of consulting for property management companies writing landscape specifications and doing contract supervision and landscape inspection. I wrote and revised several learning guides for HortBC which oversees the provincial horticulture apprenticeship in B.C. I built several interesting gardens for residential clients. I am also mentoring a few of people on an informal basis so I have consulted, advised and worked on some of their projects this year.

Vas: I’m still upset about narrowly missing you at the 2015 Can-West Hort Show in Abbotsford. What does a journeyman do to stay current in his field?

Todd: Acquire information from wide and far and as many sources as possible. Not everything is on the internet – you have to get out there and see it and live it. Journeyman should also visit trade shows, go on field trips or garden tours with colleagues to see what is happening in the world. As well, everyone should take on projects that stretch their abilities – so they can grow intellectually.

Vas: What advice would you give to a new landscape company employee starting out in 2016 and facing miles of lawn mowing?

Find another job. Or risk losing your intellect, motivation and your soul.

Vas: What three green books and periodicals stand out as must-read?

Todd: Anything by Michael Pollan on growing healthy food. There’s a lot of stuff out there to read but much of it is below my level or someone is trying to sell something, so finding captivating information is hard for me. I search for information from universities focused on horticultural research, global info organizations and non-governmental organizations focused on affecting change. Two good examples are www.panna.org, and www.gmofreeusa.org. For plant identification a good site is www.oregonstate.edu/dept/ldplants I also regularly read news and updates from 70 plus websites, Facebook and blogs concerned with gardening, the environment and growing healthy food.

Vas: Imagine your front lawn is a disaster thanks to European chafer beetles. What would you do with it?

Todd: Rototil the entire lawn into the soil as a green manure. Then replant new shrub beds and install walkways, patios, trees with groundcover, veggie gardens or anything that suits the client’s lifestyle. But I would not replant the resource sucking lawn monster. Lawn is a cultural norm of the last century during our age of innocence. Lawns no longer fit the new environmental and social awareness realities of this century. Most of my clients simply do not want to spend time or money maintaining a lawn can’t be watered during water restrictions or may be re-infected by chafers.

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chafer-infested lawn damaged by animals

 

Vas: What shifts do you see happening if our summers stay hot and dry?

Todd: More low flow or drip irrigation systems are being installed as clients try to adapt. A greater focus on drought tolerant plants is somewhat misguided in our climate where we receive abundant rainfall during winter which rots out many drought tolerant plants such as Festuca species. More people are realizing that mulching is an efficient and cost effective method to reduce drought stress. And most importantly, always dig deep to enrich and amend the soil before planting.

Vas: What are some of the most pressing issues facing horticulture today?

Todd: I think as many other people do, that society’s heavy reliance on pesticides in horticulture, gardening and agriculture is causing problems in our environment and with our children’s health. We are not being told the truth about the long term negative affects of poisonous pesticides, especially where children are concerned. Take for example the fact that pesticide residue rates and application rates are set for adult body weights using LD50 and LC50 rates. If an adult weighs 72 kilograms (160 pounds) and the exposure rate is set for the adult weight, a child who weighs half or less of an adult will receive twice the dose if exposed to pesticide residue on food or in the garden. And children have development tissue and organs making them far more susceptible to pesticide exposure. Not to mention that consumption of pesticides in the world is now being measured by the millions of metric tonnes. (One tonne of pesticide = 2200 pounds = thousands of Big-Ag profit dollars).

 

Among the many other issues facing horticulture toady, employee recruitment and retention has become very important. Low wages in the industry, difficult working conditions and intense competition have made finding and keeping employees difficult for landscape business owners. Another facet of the problem is that even a waitress can make more money than a landscape labourer. And the waitress gets to work indoors in nice surroundings. Fewer and fewer young people want to work in the “dirt” digging or carrying heavy materials all day, especially when there are high paying jobs in the technology sector. In other trades like plumbing, electrical, welding and pipefitting wages start at $25-$30 per hour, compared to $15-$18 for starting wages in landscaping. As another example, nowadays people can earn $30,000-$100,000 or more, just by starting and monetizing a website or YouTube channel while they sit in their pajamas creating and uploading content.

Vas: Do you have any plans to collect your North Shore News articles into an eBook?

Todd: I am writing a book on pruning and have plans for other books in the series. But finding time to write is difficult. And with the large amount of gardening chatter on the internet, often from people who are not trained or experienced in horticulture but have a million followers, I doubt whether my book(s) will ever be seen or read amongst the noise.

Vas: Can I become a rich employee or is starting my own company inevitable?

Todd: Being “rich” is a cultural notion applied to monetary gain only. While money is important, life is about more than just money. For some people having a steady job with benefits is enough. For others, pursuit of more and more money is the only thing that motivates them regardless of whether or not they like the work or the people. Some of my friends have stayed in reasonably good paying jobs because there’s security but they don’t necessarily love or even like the work.

 

At the CanWest show in September 2015 I attended a lecture on pests and disease of British Columbia given by a reputable tree company. During the lecture I watched as a municipal employee from Coquitlam sat scrolling though her smart phone for the entire presentation on some website or Facebook perhaps. She made no notes and learned nothing. I thought why did you waste your employer’s time and money? What did you learn? Nothing is the answer because she is simply punching the clock and stealing a paycheck. I was very offended by her actions and went over to tell her so at the end of the lecture.

 

In comparison to their parents of the last century, Millennials of this century have pioneered the concept of creating and working at a job they love and, working with friends or people they really get along with. The synergy of working with like-minded people doing something you love produces high quality outcomes. By comparison, showing up everyday to just to punch the clock for paycheck seems like a waste of time and potential.

 

I must have work that engages and challenges me while giving me a sense of purpose; otherwise I am bored. I do my best work when I am challenged just beyond my abilities. As the saying goes, “Life begins at the edge of your comfort zone.”

 

Todd Major.

Cell/text: 604.512.1826

Email: stmajor@shaw.ca

Journeyman Horticulturist,

Garden Designer and Builder

Teacher, Skills Trainer and Organic Advocate,

Former North Shore News Gardening Columnist

Web link: http://www.nsnews.com/authors?author=Todd%20Major

 

Frequently asked about this native shrub……

By | Arborist Insights, Species | No Comments

After fielding many, many questions about this native shrub, it’s time to give it its own blog. Symphoricarpos albus (Common Snowberry) is a native shrub. In the wild it forms dense thickets. In strata landscapes it gets sheared down to size in winter. Now would be a good time to do it. The shrub produces small flowers in June which attract butterflies and hummingbirds. Then in fall we get many clusters of white berries and they last into winter. This is why, I presume, my workers and residents ask about this native shrub. The white berries are hard to miss. Native birds eat them. Sometimes I think about this when I am asked to shear the shrub to size. The poor birds might go hungry.

The common snowberry is easy to grow and tolerates all but very wet soils. If you don’t have this shrub on your strata property you are bound to see it on your nature walk. If you see clusters of white berries, chances are it’s the Common Snowberry. If you want to sound like a native plant expert, use the botanical name Symphoricarpos albus.

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Symphoricarpos albus Common Snowberry

Review: HortusTV, Television for Gardeners…….

By | Arborist Insights, Reviews | No Comments

After seeing ads for HortusTV in Garden Making magazine, I decided to give it a try. The website www.hortustv.com offers a seven day trial and you don’t have to hand over your credit card information to enjoy your free week. Most episodes are in the 20 minute range and lots of different topics are covered. The selection looks limited as I write this but the episodes are shot really well. You will learn lots of interesting stuff, guaranteed. Once the number of shows increases it will make sense to pay monthly. For the moment I will keep my cash for Netflix.

Once you get your free 7-day trial, log in and first go to the Small Town Gardens series hosted by Rachel de Thame. She is easily the world’s prettiest horticulturist!
If the number of her episodes doubles, I will subscribe to HortusTV. I watched an episode about a windy apartment patio. The owners needed more privacy and heavy winds were an issue. It was an interesting problem for the landscape architect.

The Earth’s Garden series examines the connection between people and plants. In the Kew Gardens episode you will discover an interesting tree, Amorphophallus titanum. Kew is one of the oldest botanical gardens in the world. It is on my “Live it” list.

Another interesting series was about spring around the world. All of these episodes are worth watching, especially South Africa.

My recommendation would be to do the free seven day trial and then wait for the number of shows to triple before paying monthly.

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Stihl Dream Machine…..

By | Arborist Insights, Education, Landscaping Equipment | No Comments

You know the scenario well. You are blowing a strata site and your worker stops you with a question. So you stop and then take the blower off your back to start it again. Back to your leaf avalanches. Then a strata lady stops you with a pressing landscape emergency. You get the picture. I always wanted a better system where I wouldn’t have to take the unit off my back to restart it. And this year Stihl came out with my dream machine, BR 450 C-EF professional blower!

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(Image courtesy of Stihl USA, www.stihl.com)

​Key features:

  1. Electric on/off switch so you can keep the blower on your back and eliminate idling (and excessive noise) as you go from one area to the next.
  2. The blower tube extends by loosening the orange collar, no need to fit two pieces together like on my Echo blower
  3. The trigger has adjustable cruise so you are not stuck at maximum power on cruise control
  4. The trigger is easily moved along the tube with one lock, no need to tighten anything

I am not sure if this blower is available in the Lower Mainland but it is on my wish list!

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Get Landscape Industry Certified!

By | Arborist Insights, Landscape Industry, Resources | No Comments

This past fall, with daylight quickly fading out, I witnessed a residential landscape service blitz at a house next door. Three men mowed and pruned in semi-darkness. When you look at the globe cedars pictured, pruning must be used loosely. The cedars should be evenly sheared into nice globes and the clean up should match the pruning job. Always! Incredibly, this is their finished product and the clippings remain on the ground weeks later. Presumably they got paid for this “service”.

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Then it hit me! This is why landscape professionals get certified. To get some separation from people who produce and accept this kind of service.

The Canadian Nursery and Landscape Association (CNLA) runs the Landscape Industry Certified program in Canada. The program helps landscapers validate their skills and prove, by passing all written and practical tests, that they have the minimum required skill levels. Employers love it and clients should look for this logo. If you are lucky your employer will cover your testing fees. Ask nicely.

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Visit www.cnla-acpp.ca/certification or e-mail certification@cnla-acpp.ca

Proper Deep-Edging 101

By | Edging, Landscaping, Mulch | No Comments

Deep-edging beds and tree wells is a great winter task. It defines our bed edges nicely. While it is not a very difficult task, there are a few pointers to keep in mind. Always put in sharp ninety degree edges and if your bed has freshly installed soil or mulch do not mess it up with soil chunks. First, rake your mulch or soil away from the edge! See example below.

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1) Only 90 degrees will do. Position your spade so you get a nice ninety degree edge.

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2) Put your foot behind the spade to prevent bed edge rounding

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3) Continue with sharp edging, then beat up any clumps and rake up

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4) All done! Do not make volcanoes, instead remove any excess soil

Important! To deep-edge beds with fresh mulch or soil DO NOT kick up fresh soil chunks over the new soil or mulch.

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1) Rake away fresh soil from the edge

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2) Deep edge and cleanup

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3) Pull back the soil to your new edge; use the same Proper procedure for mulched beds