Planting in a Post-Wild World: Designing Plant Communities for Resilient Landscapes

From a post on Mastodon by Catherine, I was introduced to “Planting in a Post-Wild World: Designing Plant Communities for Resilient Landscapes”. Catherine’s comments intrigued me such that I found the book to read.

I’m only part way into the first chapter but there is a lot to unpack! As I currently understand the message in the book, we can create resilient landscapes using both native and non-native species. That is, the landscapes do not have to be composed of exclusively native species of plants. I admit to leaning toward the former line of thinking but I have also allowed myself to believe that the only correct environment is one that contains only native plants.

The authors have stated that what matters is the density of plants in an environment and how self-sustaining the plant community is. By self-sustaining, they mean a community of plants that does not need continuous weeding, fertilizing, or watering. Density is a question of “is every niche occupied?”

Creeping Charlie (Glechoma hederacea) is an introduced plant to North America. Many people consider it a nuisance weed. I’ve had a mixed relationship with it. I recognize that it is viewed as a weed by many people but I also recognize its value to bees because it is one of the first flowering plants in our yard. I’ve spent countless hours pulling creeping charlie from gardens in an endless effort to keep it under control.

After partially reading the first chapter in “Planting in a Post-Wild World:”, I now know I am approaching the situation from the wrong angle.

I don’t need to be concerned about creeping charlie because it is not a displacer in our yard. It doesn’t survive in the dense parts of the yard. There is no creeping charlie anywhere in our yard except in the turf grass areas and planted gardens residing in full sun. The native wildflowers, which grow thick and dense in the rest of the yard, crowd out the creeping charlie.

My new approach to creeping charlie will to let it grow in the turf grass while focusing on crowding it out in the sparsely planted gardens on the periphery of the turf grass lawn.

Budding Maple Trees

Maples (Acer) are one of the earliest plants in Minnesota to bloom in the spring and, as a result, are an important source of food for pollinating insects.

Flower buds on a maple tree
Flower buds on a maple (Acer) tree.

Because the flowers are normally high up in the tree, we don’t see the flowers. On our evening walk, I was excited to see that our neighbor’s maple tree was in bloom at a level I could actually photograph.

A flower bud on a maple tree
A flower bud on a maple (Acer) tree.

Siberian Squill (Scilla siberica)

One of the first plants to bloom in Spring is Siberian Squill (Scilla siberica). It’s a pretty flower scattered all over our yard.

Siberian Squill (Scilla siberica)
Siberian Squill (Scilla siberica) flowers in bloom.

Unfortunately, it is considered an invasive species. I have no hope of eliminating it from our property. To do so would require extensive remediation for which I have neither the time, nor money, nor the energy.

Siberian Squill (Scilla siberica)
Siberian Squill (Scilla siberica) blooming next to the foundation of our house.

Acorn Bombardment

We have a dozen White oak (Quercus alba) trees on our property, several of which are large and overhang the house, patio, and sidewalks. Starting in August, there is a constant staccato of knocks on the roof when the oaks drop their ripe acorns. When the wind gusts, the bombardment from the falling acorns is particularly heavy. And this year, the bombardment has been especially heavy, even on calm days with little wind.

Last year, the oaks produced a very small crop of acorns, so much so that I don’t recall seeing any on the walkways. This year, as if to compensate for last year’s meager output, the oaks produced a copious quantity of acorns. Regardless if we sweep the walkways once or twice a day, by the next morning, they are covered with acorns.

An image of acorns scattered on a sidewalk.
Acorns scattered on a sidewalk.

This morning, the bombardment by the back steps seemed strangely intense and concentrated. Looking out the window, I saw two acorns hit Lizzie in quick succession. When I went to investigate, I saw a gray squirrel up on a branch. It was the cause of the intensified bombardment!

After the squirrel had ran off to a different tree, I ran inside the house to retrieve my phone so I could take photos. Returning with the phone, I squatted to take pictures of the acorns scattered on the sidewalk when I was hit on the head by an acorn! Unbeknownst to me, the squirrel had returned while I was inside and had renewed his bombardment!

An image of acorns scattered on a sidewalk
Acorns scattered on a sidewalk.

Ragweed

It was with dismay that I discovered there was ragweed growing in our front lawn. None of the plants were particularly large but, unfortunately, some had begun to flower. Ragweed pollen is a primary cause of allergic rhinitis, AKA hay fever in late summer and fall for many Midwesterners. While I am not allergic to ragweed, Kat is and, therefore, I have a particular anathema for ragweed.

An image of ragweed growing in our front yard.
Ragweed growing in our front yard

There are three species of ragweed native to Minnesota. Ragweed can be found growing everywhere in the Twin Cities, including along the medians and shoulders of freeways and highways. Because of its widespread prevalence, there is no chance of eradicating it. I just do my small part by removing it from our yard whenever I discover it.

The following are photographs of Common Ragweed (Ambrosia artemisiifolia) taken by Katy Chayka of Minnesota Wildflowers.

An image of common ragweed
Common ragweed (Ambrosia artemisiifolia). Copyright 2007 k. chayka

An image of Common ragweed (Ambrosia artemisiifolia)
Common ragweed (Ambrosia artemisiifolia). Copyright 2007 k. chayka

An image of common ragweed (Ambrosia artemisiifolia)
Common ragweed (Ambrosia artemisiifolia). Copyright 2007 k. chayka

A point I would like to clear up is that goldenrod does not cause hay fever. Goldenrod and ragweed are completely different species. Both are native to Minnesota, are widespread, bloom in late summer and fall, and grow near each other.

An image of goldenrod in our backyard
Goldenrod (Solidago spp.) growing in our backyard.

Goldenrod pollen is spread via pollinating insects whereas ragweed is dispersed via the wind. One clue that indicates goldenrod relies on insects for pollination is that its flowers are bright yellow. Ragweed flowers, not needing pollinating insects, are hardly noticeable. As such, whereas there may not be much goldenrod pollen floating in the air, ragweed needs to release a lot of pollen into the air. It is all the ragweed pollen floating in the air that triggers allergic rhinitis in so many people.

An image of goldenrod
Goldenrod (Solidago spp.) growing in our backyard.

While goldenrod can be a nuisance because it can crowd out other species, I much prefer the fields of goldenrod growing in our yard to the stands of ragweed along the highway.

Plants Growing on Dead Trees

There are the remains of several dead trees in our back yard. The moss-covered remains a large weeping willow cover the ground in the southeast corner of our property. This year, I discovered that Spotted Touch-me-not (Impatiens capensis) was now growing on the moss-covered logs.

Picture of a Impatiens capensis plant growing from a moss-covered log
Picture of a Impatiens capensis plant growing from a moss-covered log
A picture of Impatiens capensis plants growing on a mossy log
A “forest” of Impatiens capensis plants growing on a mossy log.

Another tree blew down in a thunderstorm only a year ago, yet, already plants are growing from its remains. I’m not surprised, however. The tree trunk that fell down last year was the last trunk of three. The tree had been dying for years and there was a considerable amount of rotten wood in the core of the tree.

Picture of plants growing on a recently fallen tree trunk.
Plants growing on a recently fallen tree trunk.
A picuture of a plant growing in a cavity in a recently fallen tree trunk.
A plant growing in a cavity in a recently fallen tree trunk.