Spring Plant Fair 2022

Our spring plant fair was held this week, and it far exceeded our expectations. In just a couple of hours, we broke all our past records for amount of money raised at a plant sale! For me, what mattered most was seeing the hard work that our students put into making this event a success and then seeing such a positive response from the public. My team of student apprentices were absolutely elated. These events are an open house for the public to come see how students grow plants, and since all funds from the plants purchased come back to support educational endeavors, it is also an opportunity for visitors to see what new projects students have been developing. Follow along below for photos from the event and a few great plants that look good as we near the end of the semester.

The glasshouse quickly filled up with patrons. Eventually, there was a line out the door for a solid 45 minutes!

Plantery apprentice Ben (far right) gives a tour of the gravel bed and new willow fence students built.

Here’s a ground-level view of the spectacular willow fence that our students built this spring. It won’t last forever, but having this ephemeral and functional art really encourages creativity within the Plantery.

Bonfires for s’mores and karaoke enlivened the event.

Hannah (L) managed the karaoke booth while singers like Hailey (R) took the stage and sung their hearts out.

My colleagues Drs. Stephanie Jones and Michael Maurer enjoy the s’mores campfires.

Kathryn (L) and Hanna (R) are all smiles during a brief moment the greenhouse isn’t packed with people.

And, we can’t have a plant fair without amazing plants! Gaura lindheimeri ‘Sparkle White’ was just coming into flower with its charming gossamer blooms.

The blooms on Manfreda ‘Spot’ had been much anticipated for weeks as students watched the inflorescenses rise. We were glad they were still in flower for the plant fair.

One of my favorite contrasting flower combinations of late is this pairing of the giant golden flowers of Oenothera macrocarpa with the deep purple Glandularia canadensis ‘Homestead Purple’. They are both thriving within our gravel garden strip alongside the headhouse.

The flower on this Astrophytum myriostigma had just closed for the night.

We tried an aloe in the gravel bed in a very protected location, and we were delighted to see it return and start flowering this spring.

Verbena bonariensis bloomed above a carpet of Oenothera speciosa.

And, one of the highlights of the spring plant fair was seeing all the plants we grew for the fall plant fair at their peak. Here a carpet of Jacobaea cineraria (Senecio cineraria) ‘Silver Dust’ and a few plants of ‘New Look’ in the container brighten a bed near the headhouse.

Wire Weeding

The lengthening daylight is now imperceptible. A month ago when I got home from teaching, there was barely enough twilight to do anything outside. However, now I find that I can see easily until about 6:15 pm, giving me almost an hour of time gardening in the evenings.

My recent task has been cleaning out the vegetable garden for the coming peas and potatoes. The freeze that hit over the holidays while I was gone was severe, enough to tank the broccoli, mustard, and Swiss chard that I’m usually continuing to harvest. By now, the mustards are usually bolting to provide some early season nectar for insects, but they’ve just turned to mush. I’ve learned my lesson for next year. I’ll cover plants with floating row cover before traveling for the holidays.

The biggest surprise is that the soil is fairly clean of weeds, even more so than it has been in the past few years.  It’s not because I used my leaf mold mulch; no, I’m saving that precious resource for the tomatoes in the spring.  

I credit the practice of using the wire hoe.  This ingenious tool was my favorite discovery of 2021. It features a long wooden handle that holds a thin piece of wire bent into a triangle and attached to a hex head insert, much like the head one would use in an interchangeable cordless drill. There are four sizes of these triangles from roughly 8 inches wide to barely over 2 inches that can be changed out based on plant spacing.

 

Wire weeding is a pleasant task in the garden. Doing it regularly beats hand pulling all those weeds.

 

The wire is not sharpened. No, the strategy here is to get weeds while they are mere threads through shallow cultivation, perhaps only disturbing the top 1/2–1 inch of soil. It’s almost like sweeping the garden of weeds, much like one would sweep the kitchen regularly to get the crumbs up from making dinner. If weeds are controlled early in the first several weeks of plant growth, the plants will typically then cast enough shade to discourage other weed growth.  

It is incredibly pleasant to use. The handle is long enough to allow the user to stand up straight with both thumbs facing upward and weeding the garden.  I was amazed years ago when reading Eliot Coleman in The New Organic Grower write about the four thumb positions on a handle while weeding.  I mean, who thinks about these things? But, such a consideration has a big impact on the ergonomics of the tool. Both thumbs out or both thumbs in don’t make much sense, so I won’t discuss those. Both thumbs down toward the blade is horrible on the back and how most gardeners have to hold a common hoe to actually cultivate the soil due to the head length and angle.  Both thumbs up away from the blade is how one wants to hold a handle to be to minimize back issues, and the wire hoe allows for this position.  

I made it the first task in the garden, and in 15 to 20 minutes I could weed over 700 square feet by shallowly cultivating the top layer of the soil.  They key is not digging deep; it is actually better because that will reduce the number of new weed seeds brought to the surface.  I had students use this tool on campus last fall, and it did a good job of keeping the beds clean of weeds as well where they used it.  You can use it in perennial beds, too, but I find that Roy Diblik’s Dewit diamond hoe works better.

The design of the wire hoe is so simple.

Working with this hoe has given me that this-tool-is-so-simple-I-could-have-created-it-and-been-a-millionaire feeling. But, it was the brain child of aforementioned Eliot Coleman. On the episode of the Winter Growers podcast (1:01:30), Eliot notes how he was first inspired by Michael Fitzpatrick who said that his favorite tool was this little hand held device that had wires on it for cultivating in the greenhouse. He went back and made a version that could be attached to a long handle using a bolt you screw onto the handle. Conor Crickmore then took the design and put hex head inserts on the wires and ran with it making several versions of the wire hoe. And, really it has been Conor who has helped popularize it and get it into mainstream horticulture.

You’ll note earlier I didn’t just say that it was the wire hoe but the practice of using the tool. The key to weeding in the vegetable garden is developing it into a routine to see results. It becomes something you do frequently, every day or a few times a week.  Seth Godin shared Elizabeth King’s quote in the front of his book The Practice, “Process saves us from the poverty of our intentions.” And, wire weeding has saved me from a wealth of weeds.

The Winter Foliage of Parlin's Pussytoes

We had a hard freeze while we were traveling for the holidays.  The weather station at the airport registered 22F on January 2.  Collards, mustards, kales, even winter weeds like chickweed I found blistered upon our return.  Normally, these plants can survive low temperatures, but they had not acclimated because for weeks we were in the 60’s or 70’s each day.  Even Christmas eve was 80F. 

But, this week feels like winter.  There’s a persistent chill in the morning air that hasn’t been there that I feel now.  The growing season has ended, though some late season perennials were waiting forever for their closing call. And, in their absence, I see so much I didn’t see before.

Verdant basal growth becomes apparent through the remaining tattered brown stalks and duff as I walk through the garden.  Many perennial species have foliage that hugs the ground during winter that then shoots forth an inflorescence.  They are not dormant.  No, they are bidding their time, accumulating what little sunlight they can muster for when the days warm and they can rise from the ground.  

There’s the web-like foliage of Viola pedata gearing up for flowering.  I even saw a lone bloom on one the other day.  I’m surprised how large the foliage of Delphinium carolinianum already is.  It seems to have thrived with the warmth, but winter did nip the new growth a bit.  Even Callirhoe alcaeoides has emerged from dormancy and is readying its green palms for the coming spring.

One plant that I’ve become quite fond of for its winter basal foliage is Antennaria parlinii.  At first I was curious if Parlin’s pussytoes would knit together to cover the ground well since my transplants seemed patchy. But, now in its third year, the silver foliage has grown into a circular patch that is three feet wide.  The foliage is robust and has a thick feel as many polyploid plants do. It has six sets of chromosomes, likely from outcrossing with other species over the eons.  As the plant creeps out slowly via stolons that begin to emerge at this time of the year, I find it helpful to throw some fine mulch down on the edges and brush it in between the foliage to further discourage weeds ahead of the advancing front.  It seems to thrive as it grows and spreads out through the light organic matter.  

The winter foliage of Antennaria parlinii grows around a lone, tattered Carex glaucodea in the top left. It may not look much to some, but with the dearth of plants in winter, I welcome the green groundcover. If you look closely you see threads of Nothoscordum bivalve emerging and even an early Trillium!

I can’t let you get away without seeing the sweet, dainty flowers of Antennaria parlinii. These will rise in a few months with the arrival of spring.

With all this winter basal foliage, I can see spring even though it is officially two months away. The flower show of Claytonia virginica is crescendoing, and the last of my Narcissus to emerge are pushing up foliage.  I hear the American Robins sing again in the mornings, their sweet song.  It won’t be long now.