Weeds we fight: snapweed

By | weeds | No Comments

There are many native plants that are considered weeds in horticulture and one such plant is little Western bittercress (Cardamine oligosperma). It’s actually a nice little plant. But read on because you will soon find out why we fight this weed in our landscapes. I see it on all of our sites. The best procedure is to fight it before it flowers and produces seeds.

 

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Flowers and upright siliques full of seeds

 

Details

Cardamine oligosperma is a fast-growing native to Western North America. It’s an annual or biennial herb which grows from a taproot. It’s usually 20cm tall and grows in a branched form.

Flowers have four white petals 2-4 mm long.

 

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Brownish colour indicates maturity and chances of explosions

 

Snapweed

Cardamine oligosperma fruit is a narrow exploding silique 1.5 mm wide with 15-22 seeds. Seeds are oblong-ovate and they are the plant’s mode of propagation. This is great information for landscapers.

Another common name for this plant is snapweed. This is because when the siliques mature they explode. You can touch them and have some fun with exploding seeds. Just don’t do it on my sites. Remember what we do with weeds: we get to them before they flower or worse, produce seeds.

I had some fun today. I ran my fingers over a mature Cardamine oligosperma and tried to catch as many exploding seeds as I could. The photo below shows the result. Now imagine if you let a patch of snapweed mature and explode seeds all over your landscape. You are looking at a fight next season. So get to them before they mature.

 

 

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One silique and seeds in my landscaper hand

 

In conclusion, get to know little Western bittercress or snapweed (Cardamine oligosperma) and fight it in your landscapes. It might be a cute native herb but we can’t let it produce seeds on our sites.

How to change your lawn mower oil in the field

By | Lawn Care, Tips | No Comments

Spring is here and weekly lawn care is part of our routine. Our commercial machines see daily use and work extremely hard for us as we deliver great looking lawn care.  On some days the mowers will run all day. Five days a week all the way to November.

Key changes

To keep the machines running well all year there are a few key things we can do them. We have to change oil, air filter, blades and pull cords. Luckily most of these tasks can be done in the field on the fly. Some landscape companies employ small engine mechanics, some take the machines back to their shops for maintenance. But to save time, it makes sense to make easy adjustments in the field.

 

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I love this light, simple commercial Honda mower.

 

I openly confess to struggling with machines. I prefer handling plant material. But again, my advice to all landscapers is to become total professionals by knowing everything. That includes machines. So I took notes today when our guys were changing oil in the field.

Oil change in the field

Let’s take a look at a simple commercial Honda push mower.

  1. Locate the oil tank.

 

 

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2. Now we need to extract the used oil. It might help to run the mower briefly so the oil flows better. We used a fluid evacuator. Simply stick the hose into your oil tank and start pumping until the oil is out.  Never pollute. Put the used oil into your empty oil container and recycle it at a proper facility.

 

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3. Replenish your oil with the proper formulation. Check the owner’s manual. We used 10W-30 Lucas oil. The Honda push mower requires 250mL of new oil. The exact amount will depend on the model of your lawn mower.

Frequency of oil changes will depend on actual use. Our machines work hard all season so we change the oil every two weeks. One oil change for every twenty to fifty hours of use is a general guide.

My old Honda mower sees limited action so I change the oil once a year. However, that might be a mistake. I think seasonal oil changes would be better: spring, summer and fall.

 

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A funnel and measuring cup

 

In conclusion, it’s obvious that your mower will run better and last longer with regular oil changes. It definitely pays to stop during your busy week to do this quick change. Schedule it into your week and do it.

 

 

 

Little Giants

By | Species | No Comments

Today I got to plant a new cedar variety on a strata site! It’s always nice to get a little surprise like this. I’m used to planting cedars. We mainly plant Thuja occidentalis ‘Smaragd’ that form so many of our landscape hedges in the Lower Mainland. They get sheared once a year and look good. However, many of these cedars died in nasty heat waves and companies are starting to plant yews (Taxus x media ‘Hicksii’) instead.

 

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I planted lots of these Thuja occidentalis ‘Smaragd’

 

Little Giants

One of my many tasks today was to install three Thuja occidentalis ‘Little Giant’ cedars. Excellent! Something new for me. So let’s meet the little giant just in case you have to plant it or decide to after reading this blog post.

This cedar is a slow growing, compact, globe shaped evergreen. It sports soft feathery bright green foliage. It works well as a small hedge or as foundation or border accent.

Its average size is 90-120cm tall and 90-120 wide.

Zone 3

It doesn’t flower.

Keep it moist in sunny locations. I planted them on a hot sunny day and watered them after planting. Then I encouraged the home owner to keep her little giants moist. Considering the condition of her begonias, I had my doubts. Cedars require water in their first year to establish well. Most companies are on site once a week and watering new installs isn’t very practical. Irrigated sites get watered twice a week in Metro Vancouver.

Little pruning is required but I’m sure I will eventually get to shear the little giants into globes.

This cedar needs acidic soils which is fine in the Vancouver area. It is suitable for containers.

Good companion plants are: Barberry, Dogwood, Potentilla, Spirea, Lilac, Sumac and Weigela.

Retail cost $39.99 plus tax in British Columbia. Nurseries will most likely give you a better deal, assuming they have stock.

 

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Thuja occidentalis ‘Little Giant’

 

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Field sales call survival

By | Arborist Insights, Pruning | No Comments

Spring. It’s a time of renewal and, as the Tri-City News reminded me recently, it also brings out salesmen. But don’t worry, you don’t have to let them in. And you have thirty days to change your mind if your purchase is over $50. Good to know.

I was thinking about this after I had a salesman visit me in the field. The guy simply drove by my work site and saw my piles of branches. My goal for the day was to thin out Robinia pseudoacacias. So he stopped and searched out the sweaty arborist. Normally, I brush salesmen off but in this case, I was very happy to talk to him. As it turned out, he had lots of ‘toys’ in his truck.

Arborist ‘toys’

Doug pulled out a telescoping pole saw which was awesome. It’s a bit heavy but the telescoping is nice. The hand saws had me drooling. I especially liked the hand saws that attach to your leg for easy access. One day, when budget allows, I will invest in one.

Right now I am happy with my Samurai hand saw I purchased in Japan for about $35. Always get good quality steel. Having a nice, sharp saw is critical. I still remember a seminar I took at the UBC botanical garden years ago. They had an arborist doing a demonstration in a tree and his hand saw was gorgeous. Light reflected off the saw and it made a beautiful sound when it cut through the wood. I wanted one like that ever since.

Later on, the same arborist pointed out that his hard hat is worn to separate himself from landscapers. Aha! I was insulted and too shy to interrupt the demonstration. Hard hats are for safety. There are many professionals like me who are both ISA certified arborists and landscapers. Skilled, total professionals. My focus is on good quality work, not on separating myself from anybody. Remember, be so good so they can’t ignore you!

Sales details

I am very happy to plug a green salesman in a blog post. Always help others succeed. Unfortunately, many companies have go-to dealers so it’s up to the salesman to spin his magic and develop new relationships. Saws get dull and abused. You will need new ones.

Doug Cox of Calmac Saw & Supply can be reached at 604-816-6915 or calmacsaw@gmail.com. Please tell him you found him through this blog. Perhaps he can demonstrate his saws for you.

 

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Doug Cox’s beautiful saws. Always use sharp saws when you work.

 

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Landscape maintenance without discrimination

By | landscape maintenance | No Comments

Good landscape maintenance dictates that we periodically cover the entire site. On small sites this can be accomplished weekly. On larger sites, you can work out a four-week rotation. But the goal should be complete coverage without discrimination.

This was going through my head recently when I was asked to prune and clean up many parking stall inlets on a large site. This wasn’t a new idea; the work was on the site to do list for quite some time. But because the parking stall inlets are lower profile, they get pushed back. It’s not sexy work.

I am convinced we have to fight this discrimination. I treated every single parking stall as I would the main entrance and clubhouse areas. That’s what professionals do.

 

Parking stalls

 

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Take a few minutes to examine the picture above. It’s hardly an inspiring area. You can see how workers would gravitate toward a clubhouse area with nice grass and plants. So the boss sent me in. Supervisor Vas on the case. No big deal. I don’t discriminate.

Step 1: set out tarps on the river rock because once cedar clippings get stuck in the rock they are extremely difficult to clean up. Raking is brutal and blowing is effective only up to a point. The clippings will get lodged in the rocks. Definitely set out two tarps to avoid headaches later.

Step 2: shear the hedges like you normally would, tight on top and lighter on the sides. All signs must be clearly visible. Once a year should suffice. Twice is OK.

Step 3: clean up and cultivate at the base of the cedars; try not to remove too much bark mulch. Also check the river rock areas for weeds. I found one that required extra time for weeding. Again, aim for complete coverage. Never discriminate. Even low profile parking stall river rock areas should be weed-free. The last thing we want is weeds producing seeds.

Step 4: watch for parked vehicles so you don’t cause any damage. You can always come back later.

Step 5: gently blow off all edges when you do your site courtesy blow.

 

Discrimination by design

Some landscaping companies give their workers tight deadlines so they have no choice, they have to discriminate. When this is the case, most maintenance tends to happen at high-profile areas like entrances and clubhouses.

Again, this is a bad idea. Very bad idea. Good landscape maintenance is done without discrimination. I’ve seen this at a Burnaby site that went downhill fast. Two low-budget European workers had exactly two hours to spin their magic. And there wasn’t much magic.

By contrast, we have six workers at a neighbouring site all day! Our work involves a three-week rotation so that the entire site is covered. Parking stalls included. No discrimination.

Conclusion

Cover 100% of your work sites periodically so there isn’t any discrimination. Treat lonely corners the way you would high-profile clubhouses. This will lead to happy clients and renewed contracts.

Dream hedge trimmers for demanding professionals

By | Landscaping Equipment, Reviews | No Comments

Last week I had to do some power shearing and the boss handed me a new unit to try out. Great! It’s always nice to test out new models.

(Disclaimer: we use Stihl equipment at work; I am in no way associated with Stihl. Any review blog posts are just that, my personal reviews.)

The new unit was Stihl’s hedge trimmer HS 82R with a 24″ cutting bar.

 

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Stihl HS 82R

 

Notes from Stihl

“This professional unit replaces the HS 81 R with the latest in STIHL technology. Equipped with stratified scavenging engine technology that reduces fuel consumption by 20% and fulfils all emission regulations, long life air filter for prolonged engine protection, double-sided, sharpened cutting blades for a high quality cut, adjustable multi-function handle and a tool-less fuel cap. This hedge trimmer is an innovative unit designed with the demanding professional in mind. ”

 

What I noticed right away

As you shear you notice a certain softness, kind of like riding a full suspension mountain bike after riding a hard tail for ages. I noticed it because this was my first experience with anti-vibration technology. And I loved it.

The Stihl website states that “intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine’s engine are dampened which significantly reduces vibrations at the handles.”

This feature alone is worth the retail price of $669.95. Again, get to know your dealer and score some well-deserved discounts. The manufacturer suggested retail price is just that, suggested.

 

 

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Notes four springs. The anti-vibration system rules!

 

One problem

Given the 24″ cutting bar, this unit isn’t exactly light. I used a ladder for my shearing work so I wouldn’t have to raise the shears above my shoulders. The cheaper Stihl hedge trimmers are lighter. But hey, if you’re like me, you will welcome the workout for your muscles.

I was blown away by the anti-vibration technology feature. This unit is designed for demanding professionals and it delivers.

Katsura tree with too many leaves

By | Arborist Insights, Pruning, Trees | No Comments

“Every year this tree makes too many leaves.” That is a direct quote from the strata owner whose patio looked out on a nice Katsura tree specimen (Cercidiphyllum japonicum). I almost laughed. The tree makes too many leaves every year? Really? I talked to her politely and agreed that some thinning cuts were in order. But too many leaves? That deserved a blog post.

Thinning cuts

On a multi-stemmed tree like this one, thinning cuts are totally fine. Just pick a branch that rubs or crosses with others and remove it. You should be able to create some openings in the crown while still preserving a natural tree look. I didn’t have any trouble with this. It was easy to see crowded spots.

Just remember not to go too crazy. You can always come back next year. I made a few cuts on every tree and assessed it before taking more. And I will assess it again once the trees leaf out.

Too many leaves

This is a joke. Trees know what to do. We can’t tell them how many leaves to produce. What’s the big deal with leaves?

Trees use leaves as factories to make food from sunlight through photosynthesis. This is a free service which produces oxygen for us and removes carbon dioxide from the air. This process also releases water which affects local climate. Without leaves the tree can’t survive.

Once the food is made it is distributed throughout the tree. Upper branches can act as storage sites which is why pruning during drought can starve a tree. Under drought conditions, leaf openings called stomata close to prevent moisture loss. This, in turn, means that carbon dioxide can’t enter therefore food production stops. Then, here comes a landscaper with strata orders to prune trees. As he removes some of the upper branches, he removes food that was stored in them. Boom. Starvation ensues.

Leaves also serve as food for various animals and they act as cover for birds. For example, caterpillars munch on young leaves and are in turn eaten by birds.

Leaves also look great in the fall as they turn color. This katsura tree is no exception.

Too many leaves? Not likely. Let the tree do its thing.

 

Coquitlam rose

By | Events, Species | No Comments

I love the idea of one city buying the naming rights to a rose variety. But having said that, I’m not really a great fan of roses. Their fragrances are intoxicating and I love the feel of their petals. But it’s unlikely you will ever see me joining a rose society. I personally prefer trees and forests; and wild plants. Roses with their prickles were always associated with some princess getting pricked and falling asleep for a hundred years. And yet, the idea of having my own rose variety is appealing.

Coquitlam rose

As a landscape blogger I had to be there for the official unveiling of the Coquitlam rose. It happened at the beautiful Centennial Rose Garden at the Dogwood Pavilion. Incidentally, I have good memories from the adjoining parking lot. I visited many farmer’s markets there; and I maintained the green spaces when I worked for the parks department there in 2014.

The rose garden is well worth the visit. If you are in the area definitely stop by.

 

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Having elected to not return to the City of Coquitlam, I hung back until the officials cleared out so as to avoid any awkward moments. Then I took as many pictures of the new Coquitlam rose as I wanted. And I surveyed the bowling green next door for chafer damage since I got to witness nematode applications there the year before.

The rose

The Coquitlam rose is salmon-colored and locally bred. It’s hardy, disease resistant and long blooming. That’s a nice list. The official unveiling took place at the Centennial Rose Garden at the Dogwood Pavilion. The Coquitlam rose is also planted at city hall and at the Inspiration Garden.

You can watch a video on the Coquitlam rose by Jennifer Urbaniak who runs the fun activities in Coquitlam parks. Jennifer also sat the Red Seal challenge examination with me at Kwantlen Polytechnic University. Our fear of failure and embarrassment pushed us in the right direction. We both passed! She snagged a sweet full-time job and I became a landscape senior supervisor in the private sector. Both Red Seals win!

Go visit the Coquitlam rose in 2017 and see what you think.

 

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How to give your lawn a facelift with power rake and soil

By | Lawn Care, Strata Maintenance | 3 Comments

Yes, it’s finally spring on the West Coast, so why not give your lawn a facelift? Perhaps you have bare spots showing in your lawns. Let’s add a light layer of top soil and over seed it. Or there is too much thatch and moss in your lawn. In that case, we can bring out a power rake and comb out the offenders from your lawn.

With moisture and higher temperatures your lawn should perk up very soon.

I did some of this work last week so let’s recap the steps so you can do it for your own lawn. Or you can hire a good landscape company that will do it for you Properly.

 

Power raking 101

The power rake doesn’t look like much but it packs a punch, if you let it punch. The key issue is the height level of your tines. If you drop them low, the machine will rip up your lawn. So be ready for some bare brown spots that will need an application of good, weed-free top soil and over seeding.

If you set the machine high, you will just tickle your lawn. So experiment and adjust the height depending on the condition of your lawn.

The key number two is clean up time. Don’t underestimate your clean up times. If you hit your lawn hard, expect to rake up a lot of debris. Budget your time accordingly.

If your lawn is fine

If your lawn only suffers from some bare spots, then skip the power raking step and move on to top dressing. We need good quality top soil, most likely turf blend. Turf blend contains a higher percentage of sand. It should also come from a good source and be weed-free. There is nothing worse than saving a few dollars per yard only to introduce weeds into your landscape.

 

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The rule for top-dressing is to rake the soil in nicely so that your bare spots are covered but the rest of your grass isn’t smothered. Rake the soil nicely into your existing grass. It should still be visible.

Over seeding is also very easy. Just beware of wind. Apply seed carefully around bed edges so you don’t create a headache for later. Monitor your lawn for seed germination and re-apply as required. With some moisture and higher temperatures everything should be fine.

 

step 1 power rake

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step 2 rake up

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step 3 top dress with soil

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step 4 rake in the soil

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step 5 over seed

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Your lawn will thank you for your hard work!

Stihl LawnGrips Pro 6 boots: the landscape tool for your feet

By | Landscaping, Reviews | 4 Comments

After destroying my Stihl LawnGrip Pro shoes in the field, it was time to upgrade. I finally found some time to visit my favourite dealer, Tri-City Power Equipment in Coquitlam. I had a pair of the NEW Stihl LawnGrips Pro 6 boots put away. They are designed specifically for landscape professionals and they look good.

 

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First impressions

These boots feel more like hiking boots compared to the previous LawnGrips Pro shoes and the shoelaces feel much stronger. On the previous model the laces would snap at the worst possible moment or they would come undone.

The outsole is the same and I know from experience that it does offer great traction on fresh-cut or wet turf.

Stihl also added four reflective bars on the side for extra visibility.

 

Stihl notes

  • 3-D ring closure pairs for better fit and easy boot entry
  • moisture wicking 300g Dri Tec lining
  • patented Grip-N-Go outsole engineered for superior traction on fresh-cut or wet turf
  • cushioned polyurethane midsole for all-day comfort and support on the job
  • steel shank and composite diffusion plate provides protection and stability
  • multi-directional, angled cleats are designed to keep you from slipping
  • steel toe complies with ANSI and ASTM standards
  • CSA Green Patch certified
  • constructed with naturally water-repellant leather (use of waterproofing products recommended

 

Why Vas loves these shoes

  • They are made specifically for landscape professionals!
  • Comply with safety standards; steel toe boots are mandatory
  • The outsole really prevents slips on freshly-cut or wet grass; this is important when you are pushing a mower
  • Decent retails cost. At $129.95 retail it’s still a good deal compared to other work boots; and other boots aren’t designed specifically for landscape professionals. If you get to know your dealer, you won’t have to pay exact retail. So get to know your dealer.
  • Stihl has great products, from machines to clothes.

 

If your work boots are getting old and you work in landscaping, give these new boots a try.

 

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(Disclaimer: I am not associated in any way with Stihl Canada or Tri-City Power Equipment. This review is my personal take on these shoes.)