Asparagus grows well in the St. Paul, Minnesota area in the wild and in a cultivated garden. Weather and soil conditions are perfect for the plants to sprout and spread. You can find wild asparagus growing in ditches along the roads and it does well without any special care so you don’t really need to do anything special with the plants growing in your garden.
You can leave your asparagus plants alone and they will produce fine tasty asparagus the next spring but if you don’t at least cut back the old plants you may have trouble finding your sprouts since the tiny sprouts are hard to find amounst all the other plants that grow around them.
In the fall when your plants are no longer growing you can cut them down and rake debris away. That way in the spring the plants can pop up out of the ground without any trouble. If you leave the plant alone then the sprouts may have trouble pushing the dead plants away as they grow.
If you leave your asparagus unattended in the fall you can also cut it in the early spring before the plants have started to grow. Make sure to cut it as early in the spring as you can or you may damage some sprouts that are fust starting to grow.
In the fall you can feed your asparagus by putting some organic compost or manure around the asparagus bed. Work up the top of the soil slightly so the compost can soak into the ground easier. As winter progressess the compost or manure with settle into the ground and feed your plants. If your asparagus is growing to your satisfaction you do not need to feed it.
Asparagus is a very easly plant to grow since it does not require much care to have a great patch that will grow year after year.