Gardening The Woods

There may have been a moment (or two) when I looked at my field of garlic, its plethora of weeds, its need for harvest, or even the bare soil in need of turning, and felt overwhelmed. Gardening the woods doesn't meet that level, it exceeds it. It is farm work spread over a decade -or more. In spring I garden the garlic mustard and in fall, I start on the buckthorn.

I refer to this process as gardening because restoration is a fallacy. There will be no restoration, only limited choices, however informed by research and good intentions. My work amounts to weeding, seeding, planting, observing and acting like any gardener would. My preference for plants native to this biome is practical and aesthetic. Practical because they are survivors that, once established, do not require my care. Aesthetic because they become part of the whole and offer surprises. I like the unexpected.



The oldest buckthorn trees line the edges of the sunny, wetland clearings where birds congregate and eat from a quantity of berries. Under roost trees, seed density can easily reach several hundred per square meter and sapling density averages 100 per square meter. As the birds move through the woods, so do their droppings. Consider the image, above, a map of bird roost sites, droppings turned young saplings in a green stream flowing north.

This panorama shows the stream of saplings progressing northward from the great wetland. It follows the bird flight pattern, but also the soil moisture of a seasonally flooded depression that in turn takes out trees that enables sunlight to hit the forest floor, increasing germination and growth. Yes, the buckthorn does grow up the slopes, perpendicular to the stream, but sporadically compared to the edges of the vernal pooling. However, in time and without my gardening, the whole of the area will become a thicket as these saplings mature and produce berries to seed the slopes.

It is early November, when all native deciduous plants have dropped their leaves in preparation for winter. This makes it simple to identify the greenery above as 100 percent buckthorn. On this southern slope, descending to the great wetland, the age diversity of buckthorn increases dramatically, topping out at mature, multi-stemmed, 25 foot trees at the wetland edge. Why such an incredible age difference merely 40 feet away? It may be because our woods have seen several mature oak trees come down over the last twenty five years, opening light to the forest floor and eliminating a thick cover of oak leaves that studies suggest limit buckthorn seed germination. More sun has broken the lowland canopy as our once considerable bank of green, black, and white ash trees die off due to emerald ash borer spreading since 2002. Dead or alive, felled trees take out additional trees as they come down, further enhancing the light hitting the forest floor.

An impenetrable thicket wasn't on this slope ten years ago. In summer, 2012 a thunderstorm took out two large oaks that were, maybe, 150 years old each. In five years this is what has become of the buckthorn seed bank.

The reason for Rhamnus cathartica's success? It outcompetes in photosynthesis, carbon gain, shade tolerance, light tolerance, moisture tolerance, earliest leaf out, latest leaf senescence, seed production, female to male ratios, age to fertility, germination rates, and mortality. It also germinates well in the particularly barren late summer soils of our mature forests, a by product of non native earthworms and growing deer populations. It's leaves are higher in nitrogen, decompose faster, and are eaten by the worms first, quickly cycling nutrients under buckthorn stands. It has no issue with anthropogenic disturbance. This plant does not create thickets in its native ranges, but it does in the midwest where it responds to fertile, calcium rich, mineral soils. As plants go, buckthorn has a lot going in its favor.

So why go after it? Why commit so much time and labor to removing it (no easy task)? Again, I liken it to the garden. Imagine your garden was only hydrangea, everywhere hydrangea, but this hydrangea never flowered and had thorns. Who would want a garden like that? 

Woodland Orange

For three days I've been spotting an unusual orange deep into the middle slough woods, but it was early, rainy, and the mosquitos had finally blossomed. On the fourth day I traveled down the Alwin trail looking to take some photos and confirmed what I tried to dismiss -Laetiporous sulphureus.

Not only is this appearance unusually early, it is also in an unlikely location. The log has been down for years, is partially decomposed, covered in moss, and completely surrounded by water. Because I didn't act quickly, the mushroom received a couple of rain soakings, but it was completely bug free -a benefit of its island location?

Our two woodland sloughs have been steadily filling with more and more water, often independent of rainfall. It is an unusual occurrence that we feel may be connected to the partial filling of the gravel pit adjacent to the west side of the property. Rex was concerned that this change would raise the water table, and his concern appears to have been legitimate. In the back slough, nearly every tree has died -there is one old, large ash surviving the inundation. All the shrubs that were green in prior years are grey. The trail that was always accessible along the western edge is now completely submerged and invisible so that a new path will need to be cut much closer to the property line.

We do not want the trees in the middle slough to die off from inundation or fall in a storm because of soggy soil. The increased sunlight will advance an army of buckthorn well positioned on the south slope and already making headway in the middle slough. If it does not begin to drain we are likely to dig a drainage, or rather enhance the drainage that already exists. Any action of this magnitude will have consequences, but we cannot consider our woodlands as anything but altered or unalterable -it is a place completely transformed.

Winter Mind

Winter has finally come to us. Temperatures below 20 degrees F, snowfall, car doors frozen shut with the last freezing rain, the clinkeling of ice crystals shed at forty five miles per hour. Despite this wintry attitude, we here at PrairieWood have work to do. The new shop is now standing with roof and ceiling. It never occurred to me that I would work into the night, outdoors, at just a handful of degrees above zero, but I did just that last Sunday so that we could get the wiring in before the ceiling closed out our access.

While I've been able to put most house projects on hold until springtime, one thing is still weighing heavily on my mind -the woods. What once went concealed by countless leaves is now made obvious by the contrasting wet bark and newly fallen snow. If I could sum up its appearance in one word, it would be diagonal. What is it about a wood of slanted trees that is so disturbing? Is our sense of order satisfied by horizontal ground and vertical columns of trees? Is the removal of angled wood a goal of a "clean" woods? 

What we need here is a plan, a forest plan, to guide us in the care of these woods. But wait. Why do the woods need our care at all? Isn't that awfully anthropocentric? Couldn't the woods take care of itself as it has for thousands of years?

Why is it so hard to look at the woods and see ourselves in it? We entertain the woods as a medium of passage. We experience the woods, but are not a part of it. Our aim is to be out-of-the-woods. We are beasts of clearings where a few selected trees may stand sentry. Why not the woods? Is it a blow to our ego to be among such large beings? Or is it the inherent danger of a sustained presence in the woods, the mashup of life and limb? Maybe this is the most practical tack, that a life in the woods is a life fraught with falling timber. Even among the trees there is danger. No elderly tree gives way without taking or scarring those around it. The falling of a great old tree reverberates through the forest, destroying the order, remaking communities, providing opportunities for well placed upstarts. 

I've realized how easy it is to make a metaphor of the woods, but the questions are more difficult. In our short time here we've had to ask many, and no answer is quite right. Any intervention is yet another question, or string of questions. We cannot extract ourselves from the story of the woods; people created it and we are living it. 

I regret to speak so abstractly, but somewhere in this line of thinking is a better perspective that may be teased out in writing. I understand intuitively that we have a role in this mess, that we are the aliens among the trees, roadsides, and fields. We cast dispersions on the plants and animals that take advantage of sensitive niches, but were it not for us this would hardly be the case. We are the aliens, the agents of drastic change. We project it onto others (plants, animals) while claiming our place. There would be no buckthorn, no garlic mustard, no barberry or burning bush if it weren't for our own invasive nature. Can we make it right? Can you take it back? Can you undo the done? 

This is a defining aspect of our culture. We invade a place, instigating the consequences that we see all around us and then tell ourselves that it is the others' fault, it is their doing that has created the mess and maybe, just maybe, we'll commit resources to cleaning it up, and it will be ongoing, forever perhaps. The productive citizen looks away; it's just easier that way, isn't it? We can spend a life throwing resources at a problem that traces back to exactly where we stand. Is it rational to label plants and animals invasive and yet completely ignore our responsibility for it? 

In the woods I see the paradigm of our conflict, one as much with the natural world as it is with other human beings. I am left asking you if an answer, one that can never be fully right, is to look away or to commit the resources to try to correct the damage, forever, perhaps. And what to make of the trying, because trying isn't necessarily accomplishing anything other than assuaging one's conscience of total responsibility. 

I don't mean to be melodramatic. It's simply that so much of what appears to ail us today is hindered by our unwillingness to take responsibility, or at the very least, to understand our responsibility. I am not personally responsible for the rampant buckthorn in the woods, but I sure can see how it came to pass and how I've benefited from our ancestral migration to this place. 

Ignorance (in the sense of not knowing, but also ignoring) leads to bad decisions, or self-centered ones, and consequences difficult to ameliorate. For instance, water holds in the middle swale, in the back woods, and leads to ponding, mosquitoes, and to water-logged roots which can bring an untimely death to the trees there, fallen timber, more sunshine, and then faster buckthorn spread. I considered trenching a drainage so that the captured water could drain into the great wetland. Autumn came and I saw that some trees at the center of the middle swale remained green-leafed long after the rest went yellow.

Upon investigation, the bark and leaf, below, spoke. These are silver maple, Acer saccharinum, the fast growing, brittle-wooded tree of wet areas in the Eastern Forest.

I can only guess that silver maples living at the boundaries of its range put the species under pressures not necessarily found near its core. So I came to an understanding of this middle swale. I will not dig a trench to help drain it, yet I will dig deeper into what else is growing, and dying, in this area, and attempt to understand it before acting or, quite possibly, not acting at all.

The questions of how to act and what sustained gestures are both possible and effective, are for our winter mind. What can be done that limits the rampant buckthorn and doesn't undermine the fragile species under threat from its able fecundity? We spent a quantity of time pulling garlic mustard from the drainage stream connecting the northern, small wetland to the great, southern wetland. Our work was effective, but it also appeared to me that there was a significant reduction in jewelweed in the very same area. I'm working on memory, now, but I thought it was more prolific in that region in past years. So I wonder, was it the garlic mustard that reduced the jewelweed population to nearly zero, was it natural swings in population due to unusual temperatures or flooding, or was it our trampling feet that inhibited its seed from sprouting? 

Every action has consequences, so many of which are unknown. I recall how, as a child, certain people were inclined to spray pesticides into the tall oak trees to bring down gypsy moth caterpillars. Our camp director screamed, during lunch, that by God he was not going to allow those trees to die! Our neighbor brought in a pump truck, unannounced in summer time, and sprayed his trees. I am still haunted by the overwhelming bitter smell of the pesticide, the sticky residue dripping from the trees, the dead birds and squirrels on the ground. His trees didn't die, nor did the camp's, but then, neither did the vast majority of unsprayed trees.

Each of us who is responsible for a part of the woodlands at the edge of the prairie has to choose for ourselves whether to act, or look away, to spray herbicides and trample, or do nothing. There is no mandate, we operate independently of our neighbors and yet nature cares little for these arbitrary boundaries.

I am inclined to act, yet feel overwhelmed by the magnitude of what is necessary to be effective. We hesitate to spray herbicide, usually in two or more applications, but pulling is incredibly time consuming, physical and often, incomplete. Should we adjust to the new, simpler woods, make peace with the knowledge that we brought this thicket on ourselves? Could there be a middle ground where buckthorn and garlic mustard and all the others are accepted to a degree, where we do not look away but effectively manage the woods?

*all photos are from October, showing yellow-leafed sugar maples along with the green understory of buckthorn -low growing, young plants spread north while the large shrubs reside on the south facing slope.

Spring Ephemera

Too much woods and too little time.

I am excited to find ordinary ramps, Allium tricoccum, the kind that grows in dense matts, has larger leaves, and reddened stems in a far corner of the woods, just below the road, next to an ash tree, Virginia Wetleaf and Wood Anemone. I've looked in all corners by this time, and this appears to be the only patch making the common ramp the rarer of the two in our woods!

In other ramp news, this patch of A. burdickii appears to have been chomped by deer with good taste.

At the edge of the north slope, Large-flowered Bellwort, Uvularia grandiflora. Could its wilted appearance be a defense against browsing deer?

According to Illinois Wildflowers: "The presence of this plant in a deciduous woodlands is an indication that much of the original ground flora is still intact." That's good news, but it's not the whole story in our woods. I do think this bellwort is another worth trying to cultivate.

The quantity of Viola species makes identifying them a hassle, at least for busy guys like me. They grow everywhere -in the lawn, in the gardens, in the woods, on the old farm roads and paths. They are lovely. This one might be Northern Bog Violet, Viola nephrophylla.

We have blue, white, lavender, purple and yellow violets growing all around. Above, Downy Yellow Violet, Viola pubescens.

Jack In The pulpit, Arisaema triphyllum, are coming up throughout the woods.

Jack can change to Jackie from year to year, depending on reproductive success in the prior year. According to Minnesota Wildflowers: "Males tend to be smaller than females and have a small hole at the bottom of the spathe which allows pollinators to escape (with their pollen) more easily. Female plants lack the hole and pollinators are more likely to become trapped, better ensuring successful pollination." Pollination leads to the multicolored fruit seen here.

Wood Anemone, Anemone quinquefolia, growing in the drier, upslope woods near the old tractor road. 

In another, forgotten location, a pink variety of Wood Anemone.

I spotted this from across the bridge. Lousy phone photo, but maybe you can help ID it. The leaves are reminiscent of Red Elderberry. It is a pretty weak specimen, looks to be damaged by limb-fall, and is growing under a canopy of cottonwoods.

Walking the old tractor road, pulling buckthorn, I leaned in to pull this one until my vision kicked in to halt me.

A nest of baby spiders, no idea what kind, but possibly an orb weaver type. An ephemeral of another kind -off into the world younglings, and do your good work.

__________________

The greatest, visible threat to the woods and its ephemerals is the invasion of the biennial herb Garlic Mustard, Alliaria petiolata, and the shrub or small tree known as Common Buckthorn, Rhamnus cathartica.

In this fine looking scene it is easy to forget that it is greened with an army of mustard only a week away from blooming. I've begun pulling it out as I walk through the woods, but this process eats time quickly and there is always more mustard to be found! I may have to wholesale cut them back with a weedeater or sickle just to stem the tide. As is so often the case with strong weeds, these break at the root only to regrow. Any gardener knows what happens then -it simply grows back even faster, setting flower and seed on a smaller, harder to pull plant. Garlic Mustard has a 5-7 year seed bank, but it should get a little easier each year.

Garlic Mustard is bad, but nothing in our woods is as challenging as Buckthorn. Every fallen tree is another opportunity for this plant. While this corner has been a Buckthorn stronghold for many years, it really took off after a great White Oak toppled in a bad thunderstorm four years ago. It now grows on the trail as much as to the north and south of the trail.

Buckthorn can become an impenetrable thicket above and below ground. A tangle of fibrous, tough roots chokes out plants below the soil and a dense cover of leaves smothers ephemerals and low growing shrubs from above. Although many young saplings die back in winter, each sprouts new leaves from the lower stem and ground each spring. I hand pull up to 1/4-inch diameter twigs in advancing areas, but in established "groves" larger shrubs and twigs must be dug out, doing further harm to the plants that may have coexisted thus far.

Within the great wetland, large Buckthorn grow on the slightly higher ground occupied by the beautiful Red Osier Dogwood and Pussy Willow. Its seed is dropped by perched birds, which then sprout and overtake the dogwoods and willows. I haven't seen it to go head to head with cattails or get a sure foothold in the ephemeral pond of the back swale. In fact, after last year's flooding, I see many small upstarts didn't sprout this spring. Can we flood them out? If not water, then I love the idea of burning them out, although this would be hard to do safely.

Forestry experts, ecologists, park managers, and many others often discuss the advancing Buckthorn and Garlic Mustard as an ecological issue, a problem of "native" forest habitat. Surely it is, but for me this is a gardening problem. Intellectually, I agree with the experts, but my motivations are less than pure. I simply don't like the look of a Buckthorn monoculture and prefer to be able to see through the woods. I like surprises, yet Buckthorn and Garlic Mustard offer none other than the ability to show up in a previously unheard of location. It may be that ecological problems are more easily taken on when we believe we act for our own interest.

Feeling Out Boundary

For years I have been looking across the wetland, visually leaping from this side to that. I hardly noticed it was a farming plot, hardly recall seeing corn or soy. When visitors see it from the upper floor in the snowy winter, they say how nice it is that we have a view of a lake, which is of course, an illusion. For quite some time I wanted to follow the edge of the wetland, crossing the wide drainage that marks southwestern boundary of our land, and I knew well enough this had to happen in winter. It turns out March is a good time, the soil is deeply frozen, and the air might be fifty degrees.

At the beginning of this great March melt, snow becomes puddles, ground frost begins to let go.

Water is beginning to move. A warmish day, sunshine, and then an attraction to any hint of burbling, the sound of moving water, is the first symptom of spring fever.

Crossing the wide drainage at the southwest corner of our lot where electrical infrastructure meets the woods, marsh grass and cattails meet the scoured land of the gravel mine. This is a boundary I've often met, but never crossed.

Along the western edge of the wetland we find the most Eastern Cottonwood, Populus deltoides. It likes wet feet, and can be found on wetlands, along streams and rivers, on lake edges, and occasionally upland. Large trees with trunks often bending and soft wood, they are prone to break. This is the source of its common name, I think, not the downy white fluff it distributes in late spring.

The wooded hillside slopes sharply, then levels out in a zone that accommodates occasional flooding. I have found that the four-legged and the two-legged creatures like to share paths whether made by us or by them. Here, we walk along a well-trodden deer path, one well-scoped by bow hunters.

As we gain on the farm field, the land rises up just enough to take it out of the soggy soil well-defined by the Cattails, Typha latifolia. Here I see a close resemblance to an oak savanna, a wonderful little spot containing grasses, annual and perennial plants, a large Bur Oak, Quercus macrocarpa (I think) and several smaller ones.

Growing too are large buckthorns with their countless berries. The oaks probably pre-date the buckthorn. New oaks are unlikely to be seeded, sprouted, and survive the shading without the regular fires that give oaks an edge.

Lichens (maybe orange Xanthomendoza weberi and grey-green Physcia aipolia) grow on even the lower oak branches. Rampant buckthorn growth will shade out the lichen too. I have to start seeing the positives of buckthorn, what were they again?

The farm road, which bisects the wetland and forces the drainage through a culvert.

The immaculate, stone free, black earth of the farmed hill to our south. I wonder why cover-cropping is not practiced in this region and have yet to do the research. I suspect that there might not be enough growing season to get soy or corn and sprout a cover before a freeze sets in, but then I am guessing. According to the MCWD, an agency that monitors our watershed, our sub watershed is draining phosphate-laden water to Dutch Lake. This field is near the head of the shed and yet another guess is that it's providing a good part of that input. Residential septic systems and lawn fertilizers are providing the rest. 

My knee-jerk response is to worry that it soon will have homes on it. The owner leases it to a local farmer, and from what I can find, its owner does not live on the property which totals 68 acres of woods, wetlands, and farm fields (other than this one, which is isolated by topography, woods, and wetlands). A quick search shows the owner as Stone Arch Development, but a google search for that shows only a corporation named Stone Arch Organizational Development. Adding more complexity to property ownership, the notion that our own "development" is acceptable, but any future development should be off limits, or at least out of sight. 

At the culvert, water flows in from the big marsh.

And flows out toward the south, draining another few miles of wooded hillsides, residential yards, and horse fields until it reaches Dutch Lake, and ultimately into Minnetonka, overtops into Minnehaha Creek, sent over the falls, then into the Mississippi, and off to a stint in the Gulf of Mexico. 

Turning back to the north we get the only wide open view of the woods within which we live, apart from satellite views. The cropped view highlights the house, toward which I drew an arrow. Witnessing the open, bright marsh and dark woods together is eye opening.

Trail Maker

Rex's woods had been neglected over the years, probably at some point a farmer's woodlot. But he is a woodland trail maker -its his favorite activity. It gives him an intimate knowledge of the woods he lives in and opens the woods up to people, mainly his neighbors. Last year I carved a trail sign out of Redwood for his network of trails. We mounted it on two Cedar posts this passed July at the head of the main trail behind the house.

Rex uses the fallen timber to frame the trails and the wood chips from the chainsawing to soften the path. Moss often grows on the old logs.

He can often be found clearing the woodland brush. These woods have been invaded by Buckthorn, an invasive brought over from Europe as a hedging shrub. Over many months he piles up the brush and twigs which form great piles like the one below.

At any given time there may be a few of these piles around the woods. In winter, if there is good enough snow cover, he will burn these piles. I'd like to be there when he does.