Summer in the Riparian Buffer

One mowed row in the riparian buffer

The Riparian Buffer Native Food Forest project is well underway. It’s an ever-evolving work and while it will never be “finished”, the initial planting phase is on track to be complete this year. With every new year, we gain new knowledge and encounter new obstacles. This year, the dominant obstacle has been mowing. Little growing trees are not as tall as weeds, and they need help to get their quotas of sunlight and fresh air. Most farmers in a similar situation would likely spray herbicides to control weeds around the young trees, but we won’t do that here because we value the diversity of our ecosystem.

If I could start this project over again, I would have been mowing this area regularly this whole time with a regular riding lawn mower. But I had some misconceptions at the start: that I could maintain the area by mowing infrequently with a scythe, that frequent mowing wouldn’t be necessary, and that I’d be able to delegate the bulk of my mowing work to a few happy little sheep by now. I’m a natural researcher, but there isn’t a lot of documentation available on this subject, and none of those hopes panned out. Now I’m facing some pretty serious weeds. Three year old saplings, chest-high invasive grasses… add to that driftwood and large miscellaneous debris that regularly floats into our field on floodwater currents, and you’ve got an expert-level mowing situation. We have a riding mower with a pull-behind brush hog, which is able to handle the rough terrain. We’ve used it a few times to mow large spaces between planted rows, but the handling is not precise enough to be trusted anywhere near the small trees, and the operation is a complicated, multi-day effort involving two people guiding and coordinating the unwieldy beast. The riding mower alone could get fairly close to the saplings, but the deck cannot handle this much overgrowth. I was almost about to purchase an expensive new machine, when I saw my husband using our tiny electric battery-powered push mower to mow down some sturdy mulberry saplings near the rooster coop. I knew immediately that this unassuming little machine was up to the task.

An American Elder sapling, hidden among weeds

And so began the painstaking work of reclaiming the planted rows. Of course, the first job is locating the saplings, so I don’t accidentally mow them over. As you can see in the photo to the right, they’re hard to find. Especially because most of the stakes I used to mark them with last year floated away in one flood or another.

How do I find the trees? This treasure map! Actually, it’s a modern day treasure map, in the form of a google sheet. Every cell represents a 5’x5′ square. Text inside the cell tells me what species might be planted in that square. Highlighted colors denote topography. I’m able to update this sheet in real time from the field on my mobile device.

I use a surveyor’s tape (300′) to mark the row, joining the first tree in the row and the last tree in the row based on my spreadsheet notation. Then, I reapply marking stakes to any trees in the line that lost their stakes to flood currents. After the trees are all marked, I run the mower along the right side, then the left side of the planted row, coming as close to the little trees as possible. I often have to angle the front of the mower upwards, like a munchy mouth, then chomp it down over tall, tough weeds. After mowing along both sides of a planted row, I make a final pass to clear the area between planted trees. It takes 2-3 battery charges and about a day to complete one 300′ row. The maintenance work is much easier though, as long as the weeds stay short. I’m leaving wild strips between the rows, for wildlife habitat. These wild strips host important wildflowers such as milkweed, and give small animals safe places to hide, nest, and rest.

Permaculture Guild Area
This area was an attempt at a “Permaculture Guild” style design, and it was the hardest to mow. The trees aren’t planted in rows, they’re planted in concentric circles. That made them really hard to find, and created a lot of extra mowing work. This area was an experiment that will not be repeated. Yet, I mowed it!
Me standing next to a 3 year old pecan tree
This three year old American Pecan tree is nearly as tall as me! Delicious pecans in T-7 years!
All the hard work is worth it when I find a healthy little tree thriving with new growth like this yearling Swamp White Oak! Edible acorns in T-19 years.
A tiny American Cranberrybush hiding amongst the weeds. Hard to find, but worth it! T-3 years to fruit! This plant is a whole topic unto itself, and I’ll write a lot more about it. For now, suffice it to say, it’s not a cranberry.

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