Category: Diversions

Friday quiz – a tale of two clematis

These two Clematis are the same cultivar growing in my landscape about 15 feet apart. Both are growing on a fence facing north. Compare the leaves of the two:


Normal, happy Clematis


Not-so-happy or -normal Clematis

What do you think is causing the leaf discoloration? Very large hint: this is not a biotic stressor. Another hint: you’ve seen this part of our landscape before…back in March. For full credit, identify both direct and indirect environmental stress (in other words, [1] what is directly causing the discoloration in the leaves, and what is allowing [1] to occur, thereby causing stress indirectly)?

Answers on Monday – have a happy 4th of July.!

Mystery berry revealed

You guys are just too smart – I was hoping to trap someone into guessing a Vaccinium species. But no, you all knew this was a Taxus spp. (yew):

Because Taxus is a gymnosperm, this reproductive structure is actually a cone.  It’s botanically incorrect to call it a fruit of any sort, as the term "fruit" refers specifically to angiosperms. Taxus cones are modified for seed dispersal to include an edible, fleshy aril (very good, @GardenHoe!), whose taste and color are attractive to birds. The seed (which is toxic, like all vegetative parts of the plant – you’re right, Jimbo!) passes through the gut undigested.

The toxin in Taxus is the alkaloid taxine.  Like many alkaloids, it’s a potent neurotoxin. Other alkaloids you’re more familiar with include caffeine, nicotine, and codeine.

Friday mystery

I just got back from Nanaimo BC, where I had gooseberries with my afternoon tea.  Below is another "berry" found on a commonly used ornamental.  (I use the term berry loosely – as you may know, the botanical definintion for berry excludes fruits like strawberry and raspberry, which are aggregate fruits.)

I’ve photoshopped this so that only the two "berries" are visible. On Monday I’ll post the entire photo, along with some botanical fun facts! See if you can guess what this is before then.

Visiting Virginia

The first thing that I did, gardening wise, when I moved to Minnesota from Georgia was to try all of the plants that I had grown to love in the South in the North — hoping beyond hope that perhaps someone had made a mistake when listing the hardiness zones of these plants.  The result was a mess of dead lacebark elms, Japanese maples, and butterfly bushes.  One plant that I did find could live, albeit just barely, was the beautyberry — a purple fruiting shrub that would survive as a perennial in Minnesota, just barely getting up to my knee — just enough to tease me.

Today I’m giving a few talks in Blacksburg VA and visiting fellow GP Holly Scoggins.  She runs the Hahn gardens here and has some truly beautiful specimens of many plants that I covet, beautyberry among them.  I am so jealous of people who live in the South and can grow this stuff to its full potential!

In this photo I share a beer with a large, lush beautyberry.  I think it might have been more impressed by a higher caliber beer. 

Creative Uses For Old Water Breakers

Why, oh why, can’t someone engineer a sturdy, long-lasting, horticulturally-correct water breaker.

We have, at last count, six hoses in use at our very spread-out garden & farm.  I go through a lot of breakers, and am down to two, which I rotate around.  In dire need of some new ones (as well as a huge bale of TP), I perused the garden aisle at our local big box (rhymes with “Target”).  Pistol grip schnozzles abound – these things that propel the water
like a 95 mph fastball.  Just what your plants want. Some had the “dial” for various water flow patterns, but these are never satisfactory.  Not a single real water breaker for plants among the 20 choices. So I shall do mail-order from FarmTek.

Dramm seems to makes the only functional water breaker, but alas, most of what’s in my busted-breaker-bucket are old Dramm heads (at $10-$12 a pop). Their commercial line is a bit better than the consumer items, where a rainbow of colors seems to be more important than structural integrity.  Anyone who’s worked in a commercial greenhouse has used their aluminum models or the plastic RedHead soft flow breaker, The only solid brass item in their line is the super-fine Fog-it Nozzle… I’ve had the same one since 1996.

A solid brass version of the full-size breaker would be great.  The point of failure (always) is the interface between the screen plate and the body/shell.  I hate replacing things. I’d pay for quality.

Hammer Time!
Obsoive.  My ingenious partner uses a water breaker body to keep bamboo from splitting (further) when pounded.  Principle of transference of impact from smaller area to larger surface, etc.  Tomato stakes finally installed!

Mystery photo uncurled!

There were a few brave souls who ventured to ID the mystery plant – a trunk shot is not particularly helpful, I know.  But I was hoping that its contorted nature might help a little.  (It wouldn’t have helped me at all, but you all know by now that I am NOT a taxonomist.)

So our mystery tree is a curly willow (Salix matsudana):

…which may or may not be synonymous with Salix babylonica.

In any case, it’s an interesting tree that’s relatively cold hardy.  Like many willows, it has weak wood and is prone to breakage.  But in the right location (away from targets) it could be a lovely specimen.

What About the Corn?

Year after year farmers in the US plants a lot of corn.  A safe estimate is around 80 million acres with another 70 million acres or so going to soybeans.  Corn comes from South America,  soybeans are from East Asia.  When we plant these crops we plant them in such a way that we exclude or, at the very least, limit the ability of native plants to grow.  A safe estimate is that 99 percent of our cropland is planted in non-native species.  I’d like to get your opinions on whether it’s OK for us to go to such efforts to control invasive species like kudzu and buckthorn when, on the flip side, we’re going to so much effort to encourage other species which don’t come from here.

Friday puzzle solved – better late than never!

I spent yesterday flying from Seattle to Buffalo and didn’t get a chance to post the answer to the puzzle on Friday.  This was an easy one for our readers – the shrub is (was?) a mesquite, and the bushy growth in the photograph is mistletoe (as identified by Bob and seconded by Ginny and Jimbo). 

I am pretty sure this mesquite was dead, as it had been a wet spring and everything was leafing out.  That being said, I didn’t cut into the bark to find out.  If it is dead, that does raise the fascinating question of how the mistletoe can extract water from a dead shrub.  So it’s likely that the mesquite is just slow to leaf out.

This (and other) mistletoes provide food for native birds, and as Jimbo points out they are the perfect dispersal mechanism for the sticky seeds.  There’s a great video of this behavior in the "Secret Life of Plants" by David Attenborough – if you haven’t seen this series, you should.  Amazing.

Thanks, all, for playing – and Peter, your last comment was perfect!