This year Pinellas county in Florida banned the use and sale of nitrogen and phosphorus fertilizers for lawns between June 1 and September 30. Is that a good idea? On the surface it seems like a great idea because it should reduce the amount of nitrogen and phosphorus which reach streams, lakes, ponds and rivers and cause algal bloom and destruction of water habitats. On the other hand a PROPERLY fertilized lawn is less likely to have nutrient rich runoff (because of a more expansive root system.) … Continue reading this article “The Government In Your Yard”
Author: jeffgillman003
Plant Patents
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”
Odds ‘n Ends
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”
Being Wrong
The thing about being a horticulturist and a professor is that you’re always supposed to have the right answer. Which is to say, when I tell people not to use beer as a fertilizer, to avoid planting trees too deeply, and to reduce pesticide use, people take it for granted that I know what I’m talking about and that, if they don’t do what I say, there could very well be problems. But, as most of you know, growing plants is an art and a science, and sometimes plants decide to do things that are unexpected — plants are individuals after all, just like we are. … Continue reading this article “Being Wrong”
Is This Really a Good Idea?
Transgenic plants have been with us for well over a decade now. I have had the opportunity to work with many of the tools used for this technology, though most of that is far behind me (over 15 years now since I “ran a gel”) — I’m much happier being outside or even in front of a computer writing than in a lab. Fortunately I have a number of “lab rat” colleagues so I’m relatively up to date on what’s going on and what “gene-jumper” scientists can and can’t do.… Continue reading this article “Is This Really a Good Idea?”
Is Petting Your African Violet a Good Idea?
As some of you know, I post a research update every three months or so on Susan Harris’ blog www.sustainable-gardening.com as well as on GardenRant. This update reviews scientific articles which might be useful to gardeners. Anyway, I just finished up a new edition earlier this week — which will probably be posted soon — that included one of the more interesting articles that I’ve seen recently. For my post today I thought I’d spend just a couple of paragraphs telling you about it. … Continue reading this article “Is Petting Your African Violet a Good Idea?”
Is It Worth Anything?
Plant aficionados everywhere are constantly looking for something which they can patent and make a million bucks on — something like ‘Endless Summer’ hydrangea which captured the public’s attention — and their wallets. Many of the new plants we see today came from something called “branch sports” which are basically segments of a tree — like a branch — which has somehow mutated so that it offers something a little different than what the original tree did. … Continue reading this article “Is It Worth Anything?”
A thought about Invasive Plants
Recently there was an article published in the journal Science (widely considered one of the most prestigious science journals in the world) by two professors who I knew while I attended college in Pennsylvania (Franklin and Marshall College — Anyone ever heard of it?). I found this article particularly interesting because it explained how the beautiful Pennsylvania scenery that we assume is natural was actually created over the course of three hundred years. Saw mills and dams changed water flow patterns — those pretty streams that flow through the Southeastern PA (and nearby areas) that I grew up in aren’t natural at all.… Continue reading this article “A thought about Invasive Plants”
Notice Any Similarities to Compost Tea?
Linda sent me a link to This Comic the other day. Funny stuff — and not a little bit analagous to our friends who think that compost tea is the cats meow!
Let It Snow!
Here in Minnesota one of the things that we need to worry about is the cold. Over the winter we can see temperatures down into the -30s (even the -40s in the Northern part of the state) and it can damage many of the plants that we grow. The tops of the trees are usually able to handle these types of temperatures — though a good heavy snowfall can cause a limb to collapse now and again.… Continue reading this article “Let It Snow!”