Good guesses over the weekend on what caused the twisty looking trunk structure in Friday’s puzzle. Here’s a larger photo:
Nancy and Paul both got this one – it’s two trunks fused together. I have no idea whether the production nursery grew two saplings together on purpose or accidentally, but here’s one reason that this tree might be a problem down the road:
This area is ripe for disease, as water will collect in the crotch. … Continue reading this article “Trunk teaser untwisted”
Here’s the trunk of a Japanese maple I photographed last month at a big box store in Seattle:
Why does the trunk look like this? Answers and more photos on Monday!
A few months ago I was interviewed for an article where they asked me whether I thought that a deer repellant which was taken up into a tree would be a good idea. I said sure, great idea. It would last a long time — something that most repellants currently don’t. Well, I just saw the article and I must say that I’m not so sure that it’s a great idea any more.
It seems that the repellant that they’re talking about is basically a combination of hot peppers and DMSO. … Continue reading this article “DMSO”
A week or so ago my new friend Doug wondered about some gardening advice on the radio: would adding vodka to paperwhite narcissus make the flowers less “floppy?” The explanation he’d heard was that alcohol would burn the roots and reduce stem growth. Then today I received an email newsletter with the same intriguing information. This newsletter referred to a 2006 article that appeared in HortTechnology as the source of this information.
The study by Miller and Finan has generated a lot of interest in the gardening community, especially this time of year as people get ready to force bulbs for indoor blooms.… Continue reading this article “Potted plants…really potted”
I’m going to add a bit more to Bert’s discussion. Through the efforts of Dr. Eric Wiseman of Urban Forestry at Virginia Tech, we have a
Utility Line Arboretum (ULA). Modeled after Dr. Bonnie Appleton’s original ULA for Virginia at the Hampton Roads research station, Eric’s includes many woody taxa suitable for planting in the vicinity of power lines (see a nice list of Bonnie’s favorite power-line-friendly taxa here).
Eric came to me with his plan in 2006 and we found some space in our Hahn Horticulture Garden to get it going.… Continue reading this article “So what to plant under power lines?”
One of our semi-recurring themes on the Garden Professor’s is our WOW’s or “Why Oh Why’s”. As in “Why oh why do nurseries continue to sell invasive plants?” Today, I’d like to turn things around a bit and look at a group of people that are often maligned by the public but, in fact, are getting a bad rap and could use a break; utility arborists.
Right tree, right place?
Utility arborists face a nearly impossible and unenviable task. … Continue reading this article “Utility arborists: Give ‘em a break”
If you follow this blog then you know that I write a lot about pesticides. They’re something that I enjoy reading about and studying. For whatever reason, I find them fascinating. That said, they can be some of the worst things for wildlife. But there are pesticides that are more “wildlife compatible” than others, so today I’m going to cover some of the worst pesticides that you can use in terms of wildlife, and some of the pesticides that might be more acceptable (though far from perfect).… Continue reading this article “Pesticides and Wildlife”
We’ve posted before about the native vs. nonnative conundrum, especially as it relates to invasive species. So let’s complicate the issue a bit more by considering how birds are affected by our landscape choices.
About 10 years ago my UW colleague Sarah Reichard and I collaborated on a literature review on the interaction between birds and non-native plants. While we know that invasive plants can displace native plants and create less biodiverse environments, the resulting impact on species like birds is not so cut and dried. … Continue reading this article “Want more bird visitors? Nonnative plants may be the answer”
Wildlife week continues! My humble experience with my own gardens past and present, as well as our campus garden, is that the presence of water virtually guarantees the presence of wildlife. One of the National Wildlife Federation’s top requirements for becoming a Certified Wildlife Habitat is “supply water” (another requirement: "$20 fee"). Water is, of course, the beverage of choice for most animals (though I did hear of a squirrel that preferred beer). And some creatures require it as a substrate in which to reproduce (that sounded a bit clinical). … Continue reading this article “Water is the answer!”
It’s ‘Wildlife week’ on the Garden Professors. One of the most common questions that we get when speaking to garden groups is, “What can I do around my home to promote wildlife?” My stock answer used to be, “Throw a party!”, but only a handful of people ever got it so I’ve backed off of that one. Anyway, since the subject of gardening and wildlife comes up so often we’ve decided to dedicate a week to the topic.… Continue reading this article “The Garden Professors Go Wild!”