Planting a bioswale, part 1

Walls are going up.
Walls are going up.
Septic system is nearly complete.
Septic system is nearly complete.

Amazing Space is progressing quickly, both above ground and underground. Three of the bioswales are complete. Finishing them early allows us to protect them with silt fence immediately and re-establish permanent native prairie in the same season they were initially disturbed. We started dormant seeding already to provide the seeds a natural cold, wet stratification and good soil contact for spring germination.

Planting the bioswale with a seed and sand mixture.
Planting the bioswale with a seed and sand mixture.

In a few days, the more traditional annual oat cover crop will be planted. If these warmer temperatures hold, they should establish roots yet this fall to protect the soil, and they will die back over the winter. The site will also be mulched, to protect the bare soil.

Prairie seed is expensive, and local seed is the best, so we have been busy collecting. Paper bags are better, but we didn't have any on hand when this culver's root presented itself.
Prairie seed is expensive, and local seed is the best, so we have been busy collecting. Paper bags are better than plastic, but we didn’t have any on hand when this Veronicastrum virginicum presented itself.

Because these are bioswales, they are designed to move water through them. While it will be a lot of water, it won’t be standing and puddling. The species we plant need to be able to withstand drought far more than they need to be able to withstand flooding. For this first round of planting, we used: common milkweed (Asclepias syriaca), butterfly weed (Asclepias tuberosa*), white wild indigo (Baptisia alba), river oats (Chasmanthium latifolium), rattlesnake master (Eryngium yuccifolium), cream gentian (Gentiana flavida), sweet pearly everlasting (Pseudognaphalium obtrusifolium), grey coneflower (Ratibida pinnata), wild rose (Rosa arkansana), little bluestem (Schizachyrium scoparium), late horse gentian (Triosteum perfoliatum), culver’s root (Veronicastrum virginicum),  purple prairie clover (Dalea purpurea), and narrow-leaved coneflower (Echinacea augustifolia).

wild coffee
Triosteum perfoliatum

As fall harvesting continues, so will the number of species we plant. For species that we don’t have a lot of already on-site, such as white prairie clover (Dalea candida) and rough blazing star (Liatris aspera),  we will purchase. Due to the support of Rockwell Green Communities, we also have a number of established plants started in the Butterfly Hoop House to transplant.

Butterfly weed ready for transplant.
 Asclepias tuberosa ready for replanting outside.

*It’s worth learning the Latin. I recently had a great conversation with a volunteer interested in helping us establish more pleurisy root on the property. Never having heard of pleurisy root, I had to do a bit of research to determine if pleurisy root was native (it is) and if it fit within our land management plan (critical to the plan, in fact).  I was also initially introduced to Triosteum perfoliatum as wild coffee, no Latin provided. I had to key that out in a guide book to find its Latin name, because what most people call wild coffee isn’t native here…