The joys of arborizing!

It’s Holly’s day…but she’s off playing in a tropical paradise.  So because she seems to be of a sunnier disposition than I am, I’ll post happy thoughts today.

One of my favorite pruning techniques, especially for small urban landscapes, is arborizing.  This is a way of creating small trees out of large shrubs – and often, a large shrub is as much as a small landscape can handle.  Rhododendrons are common landscape plants here in Seattle, and the larger ones lend themselves beautifully to this practice:

  

As you’ll notice in this example, arborizing not only creates an aesthetically pleasing tree form, but also moves the crown away from vehicular and pedestrian traffic. … Continue reading this article “The joys of arborizing!”

The Flap Over Burlap

This month’s issue of the Oregon Association of Nursery’s Digger magazine includes the second part of a two-part article on urban foresters’ perspectives on nursery stock.  It was interesting to note that some urban foresters felt they were in a quandary because their specs require removal of burlap from B&B trees, yet many nurseries will void their warranty if burlap is removed from the root ball.

Removing burlap from B&B trees is a practice that is widely recommended, yet there is little, if any, data to support it. … Continue reading this article “The Flap Over Burlap”

Chad and Jeff’s Excellent Nursery Adventure

About 3 months after I started my job in Minnesota I hired a technician to help me run the nursery and to manage research plots.  His name is Chad and he stands about 6 foot 4, has shoulders that threaten to pop the sides of the skid steer loader whenever he enters it, and he knows his stuff because he needs to (and even if he didn’t know his stuff you’d be scared to tell him that because he looks dangerous with his frightening Fu-Manchu moustache). … Continue reading this article “Chad and Jeff’s Excellent Nursery Adventure”

Building a better tree? Not in the long run!

One of the landscape tree production practices that drives me absolutely nuts is heading back trees in the nursery to create “columnar” specimens.  It’s easy to find examples of these in Washington state nurseries, like the pathetic oak shown below:

 

Aesthetics aside, let’s focus on how the tree responds to heading back.  The removal of the dominant leader encourages lateral branches below to become more upright; from these laterals, a new leader is selected.  This new upright growth habit is highly prized by many landscape architects and urban planners, as such trees fit more neatly into small urban spaces without interfering with vehicle and pedestrian traffic. … Continue reading this article “Building a better tree? Not in the long run!”

Where the Buffalo Roam

Just kidding. We have no buffalo on the campus of Virginia Tech, just lots and lots of students with the flu. Yuck.  But this is much more interesting:

Bouteloua dactyloides (bless you!), better known as buffalo grass:

We’ve recently added a 1-acre meadow to our on-campus teaching and display garden (the Hahn Horticulture Garden at Virginia Tech).

Native trees, shrubs, perennials,and grasses surround a central lawn of buffalo grass. As one of the components of tall- and short-grass prairie, it is a popular forage in the west and midwest. … Continue reading this article “Where the Buffalo Roam”

EverGreen or EverYellow?

In last week’s post I mentioned that many tree problems can be difficult to diagnose and require a thorough inspection and site analysis to get to the root of the problem.  In contrast, a recent issue that has generated a lot of calls is easy to explain and is not a cause for major concern.  Many homeowners and others are alarmed that needles on their white pines are turning bright yellow.


“Is my pine dying?”

The key in assessing this situation is looking at which needles are turning color. … Continue reading this article “EverGreen or EverYellow?”

Blog bizarre

Jeff’s post yesterday gave me the perfect opportunity to showcase the star of my bizarre book collection..  It’s called “Evolution of Botany:  More Fact Than Theory” written and published by Benjamin Zarr (author of several other books, including “Evolution:  No One Can Break Down My Theory!”)  Jeff, he’s written more books than you and I put together.

This book was “willed” to me by a dear colleague at Buffalo State College after he retired.  When I first received it, I tried to read a chapter, but found it impossible to finish. … Continue reading this article “Blog bizarre”

RAWRRR!

Posted in honor of Garden Rant’s Halloween-related garden photo contest.

Pick me, Amy, pick me!!!



Now For The Scary Part

This little dude is the Florida Semaphore Cactus, native only to hardwood hammocks in the middle and lower Keys. According to the Center for Plant Conservation, “Opuntia corallicola may very well be the most endangered plant in the United States.”  Only one wild population remains (eight individuals), plus a few sites of re-introduction. Loss of habit and an exotic cactus moth have contributed to the demise of this most personable of cacti.… Continue reading this article “RAWRRR!”

As Bad As It Gets?

Last week I took a look at old, out of print books that are worth finding and reading.  This week I think I’ll take a slightly different track and instead turn my attention to a book that is currently in print, but which shouldn’t be.  In fact, 1001 All-Natural Secrets to a Pest-Free Property by Myles H. Bader can be found in many bookstores, was actually one of the best selling garden books of 2006, and is still selling today. … Continue reading this article “As Bad As It Gets?”

Size matters.

Yesterday I received a call from an administrator at a large military base.  (I have to tell you that anytime I get a call from someone in government I immediately start wondering about “the file” that I’m sure is kept on me.  No, I’m not paranoid, but I’m an outside reviewer for a number of graduate student theses from the University of Agriculture in Faisalabad, Pakistan.  In fact, I’m doing two right now.  So every once in a while I am sent a brown paper package from Pakistan. … Continue reading this article “Size matters.”