As you know, I wanted to get something intriguing for this week’s puzzler from the NW Flower and Garden Show. Alas, there was nothing that jumped out at me, so I’m digging into my photo archives.
Here is a recent photo from a parking lot tree. About four feet up the trunk, I found this interesting growth. No, I don’t know what the tree species is because (a) it wasn’t in leaf and (b) I’m a taxonomy klutz. … Continue reading this article “Friday quiz…better late than never!”
As you might know, I’ve been at the NW Flower and Garden Show this past week, and yesterday I had two seminars to give. So I didn’t have a chance to post a quiz, and this morning I’m back over for a few hours before I’m done.
I’m hoping to find an interesting Garden Prof question topic at the show, so I’m taking the camera today. If I can’t, I have a backup. But I promise there will be a question up by today!
I love patents. In fact, I once wrote a novel based on a patent — It was called Patent 22 — If you look this patent up you’ll just find a piece of paper from 1915 which says, essentially, that a search was made for the patent but that it couldn’t be found. No one wanted to publish it — and reading it now I do realize that it does need some serious work. Still, I think this little tidbit gives you a little bit of an idea about my interest in patents. … Continue reading this article “Plant Patents”
A few weeks ago (January 20 – “Help, help, the sky is falling”) I started a discussion about an article appearing in the peer-reviewed journal New Phytologist. That posting focused on the methodology and results in the paper. Today let’s take a look at the authors’ underlying arguments (their introduction to the study) and their conclusions.
1) The authors’ premise is that “laymen and professionals alike commonly believe water drops on plants after rain or watering can cause leaf burn in sunshine.” … Continue reading this article “Water droplets and burned leaves, continued”
Amicia zygomeris is a cute little herbaceous thing I picked up on a visit to Plant Delights nursery back in October. For $13, I wanted to be sure it survived the winter, so it’s been in our kitchen garden window, just waiting for spring.
Soon after putting it in the window, I had an “oh no, I’ve killed it” moment one evening. All the leaves were drooping, yet the soil was moist. The next morning, it seemed to be back to normal. … Continue reading this article “All Right, Linda; I’ll See Your Paraheliotropism and Raise You a Nyctinasty”
As winter continues to hold its icy grip over the middle of the country, our thoughts don’t stray too far from plants and cold. Recently one of the graduate students in our department, Nick Pershey, brought to my attention a new product called FreezePruf that claims to improve plant cold hardiness by up to 9 degrees F. Since a couple of degrees of improved cold tolerance can be a big deal (just ask a Florida citrus grower after a 29 deg.… Continue reading this article “Checking up on FreezePruf”
Wow! What a lot of great brainstorming over the weekend! I would venture to say that The Garden Professors have the smartest students in the world.
On to the answer…or answers. First, the phenomenon. It’s called paraheliotropism – literally, a movement to protect (the leaves) from the sun (yes, Trena, it is a tropism!). This is the opposite of another phenomenon called heliotropism, or solar tracking. Sunflowers famously do this, as do a number of arctic species that collect solar warmth for the benefit of their pollinators. … Continue reading this article “Friday puzzle answer(s)”
Spring is coming…and soon herbaceous perennials will poking their leaves up through the mulch:
Obviously as leaves first emerge they’ll be vertically oriented – but these ones have remained vertical days after emerging. Eventually they’ll become horizontal. But today’s question is – what’s the advantage in remaining vertical? And what’s this phenomenon called?
Answer on Monday – have a nice weekend!
Some odds and ends today that I either #1 was asked to post or #2 couldn’t resist posting. First for the picture that I was asked to post.
This, as far as we can tell (we being myself, my technician, and our grounds department), is the American elm tree that was being planted in that picture from 1909 which I posted on January 21. Dutch elm disease was devastating here in the mid 1900s as it was everywhere, but this region of the world was lucky and there were a number of escapes — and resistant trees (that’s an ongoing project of mine — working with DED resistant elms — I’ll probably post more about it this spring). … Continue reading this article “Odds ‘n Ends”
In the wake of The Garden Professors’ sudden notoriety (see Linda’s Jan. 26 post), my department head sent out a very kind e-mail announcement to our faculty, staff, and grad students.
However, he referred to us as the "Hort Professors" blog, sans hyperlink.
A curious staff member (the lovely and talented Pris Sears) searched that title, resulting in the following:
Hort Professors, Hot Professors…kind of the same thing. Thanks, Google!