An antidote for anecdotes

Cats and orchids – what’s not to like?

I often feel slightly nauseous after a day of debunking misinformation online, in emails, and in person. Others who selflessly give their time and energy to the same efforts probably feel the same. An antidote counteracts poison; in a very real sense, those of us who guide gardeners through the six circles of horticultural hell are routinely exposed to the mind-numbing dregs of lazy thinking.

Not exactly Dante’s Inferno, but this ‘Inferno’ coleus is certainly ablaze.
Continue reading this article “An antidote for anecdotes”

How would your garden handle a 12-inch rainfall?

Early in August, Hurricane Debby made landfall in the Big Bend of Florida’s Gulf Coast, crossed into Georgia east of Valdosta, and moved leisurely northeast. The remains of Debby crossed the coast, briefly moved over the Atlantic Ocean before turning northwest and making another landfall northeast of Charleston then headed north into New England. While the winds decreased quickly once Debby made landfall, it dropped huge amounts of rain along its path. The highest official rainfall amounts topped 12 inches, but I heard of some unofficial measurements of 20 inches in a few isolated locations.… Continue reading this article “How would your garden handle a 12-inch rainfall?”

Weeding out the Pseudoscience in Companion Planting

A polycultural landscape mixing vineyards and annual crops with woody hedgerows and trees in Charente, France. Photo courtesy of JLPC through Wikimedia.

As gardeners, we often assign human characteristics to our plants as a way of feeling more connected to them. We talk about their preferences and dislikes for certain environmental conditions and even for each other. The idea that plants have feelings has caused many to believe that plants are sentient and capable of making deliberate choices.… Continue reading this article “Weeding out the Pseudoscience in Companion Planting”

Earthworms: The Good, The Bad, and The Ugly

Earthworms have held a secure place in the hearts of many gardeners for quite some time. Charles Darwin himself was endlessly fascinated by these organisms (publishing an entire book about them in 1881) writing: “it may be doubted whether there are any other animals which have played so important a part in the history of the world…”.  

Nightcrawler/Common Earthworm (Lumbricus terrestris). Photo: Joseph Berger, Bugwood.org

Recognized for their benefits to soils, including improvements in water infiltration, aeration, porosity, tilth, organic matter, beneficial microbes, and the list goes on, it is not difficult to see why.… Continue reading this article “Earthworms: The Good, The Bad, and The Ugly”

Landscape Malpractise Cases

Or “When to Fire Your Landscaper”

We have a guest writer for this week’s GP blog post, Teresa Watkins! She’s a professional landscaper and garden consultant in Florida (her bio is at the end of the column). As a professional she has seen “landscaper results” that will astound, scare, shock, or otherwise perturb you to no end. She has graciously shared photos and input for this blog post.


We hope this will be a series highlighting what to watch for when hiring a landscape company.… Continue reading this article “Landscape Malpractise Cases”

Dust in the wind

In my blog post last month, I mentioned the likelihood of having a very active Atlantic tropical season, especially because the ocean surface temperatures are so warm. But despite an early start to the season with the first three named storms (including Beryl, the earliest ever category 5 storm in the Atlantic Ocean), it’s been quiet for the last few weeks. The ocean temperatures continue to be very warm. What is preventing the development of tropical storms in such a warm environment?… Continue reading this article “Dust in the wind”

The nitty gritty on movement of chemicals in plants, part 2

My social media administrator (aka cat herder extraordinaire) reminded me recently that I’d written a post on xylem function and promised to follow up the next month with a post on how phloem works. Well, that was about 18 months ago. Guess I better keep my promise.

Do read the linked post if you don’t remember why “xylem sucks.” In contrast to xylem, functional phloem is an interconnected series of living cells with cell membranes. The presence of a membrane means the plant can regulate what goes in and out of the phloem, and the direction of phloem flow is determined by the relative concentrations of dissolved substances in the water – most importantly sugars derived from photosynthesis.… Continue reading this article “The nitty gritty on movement of chemicals in plants, part 2”

Tropical storms and hurricanes and how they affect your gardens and properties

Last month I discussed the forecast for the Atlantic tropical season and pointed out that it is likely to be an active one. As I write this, there has already been one named storm (Alberto, which went into Mexico but dropped a lot of rain in southern Texas) and two more areas of potential development are moving their way through the Atlantic (note TS Beryl formed on Friday, June 28 at 11 pm after this was written).… Continue reading this article “Tropical storms and hurricanes and how they affect your gardens and properties”

The truth is out there – you just need to know where to look. Part 1 – navigating the informational swamp

Good and good for you!

It’s been 20 years since I began my Extension position at Washington State University. During that time, I’ve tackled gardening myths and produced peer-reviewed fact sheets and manuals through our Extension Publications department. But because of the way that Google searches work, these resources are often buried far beneath the glitzy but fact-free websites promoting bad science. This month I’ll be shining a spotlight on some publications that are must-reads for those who wish to use science-based information in their garden and landscape activities.… Continue reading this article “The truth is out there – you just need to know where to look. Part 1 – navigating the informational swamp”

Don’t be a Horticultural Hot Mess: Climate-Smart Gardening Practices

While there are still doubters out there mostly thanks to politics, it is pretty clear that the climate is changing and humans are affecting the speed at which it is occurring. The number of record-breaking temperatures and the shift in the USDA hardiness zones show the current effects of this change that will affect almost all parts of our lives, including gardening. What may be less apparent to folks is shifting weather patterns and the increased incidences of extreme weather.… Continue reading this article “Don’t be a Horticultural Hot Mess: Climate-Smart Gardening Practices”