If you are planning to plant a perennial flower garden, you should plant it on your drain field. This can help your septic drain system function better. Perennial flowers assist your septic tank by removing organics and water in the field, which will keep the area from eroding. Below is information on how to create a new flower garden in this area, and the best flowers to plant in it.

Choosing the Perennials

Drain fields can be an eyesore, and putting a flower garden in this area can help beautify it. Before you get started, you need to choose perennial flowers that have shallow roots. The piping for most septic tank systems runs anywhere from 5 to 48 inches below the soil. You do not want roots to grow down this far, because they can disrupt the piping and cause problems.

There are perennial flowers that have shallow roots that you can plant including:

  • Black eyes susan
  • Shasta daisy
  • Garden phlox
  • Geranium
  • Monarda
  • Schillea

When you are purchasing flowers at a garden center, a worker will be able to help you find perennials with shallow roots.

Creating a Flower Garden

Choose the area where you are planting, and remove the top level of sod using a shovel.  Remove any rocks and debris from the soil. When you are finished, use a tiller to go over the soil to loosen it up. Add two inches of compost to the soil, and then till over it again. You can put an edging around the flower garden, which will keep weeds from growing in it.

Purchase your flowers from a garden center, and decide where you want to plant them. Remember the sun requirements for the flowers you purchase. If the flower garden gets 6 hours of sun per day, you need to purchase flowers for all sun. If it gets 3 to 5 hours per day, then you need to purchase flower that grow in part sun/part shade. Anything below 3 hours, you will need flowers that will grow in all shade.

Once you decide where you want to put the flowers, remove them from the pot. Dig a hole in the soil that is large enough for the root system. When you place the flower in the hole, the base of the plant should be at soil level. Push the soil that you removed around the plant, and press down on it with your hands.

When you get all of your flowers planted, water them thoroughly. Keep them moist for the first two weeks so the roots can get established. After this, an inch of rain per week is needed. In the hot summer months, they may require more than this. Because the roots are closer to the surface, they should never dry out.  You can stick your finger in the soil, and if it feels dry to you, give them some water.

You should add some mulch to your flower garden to protect the roots, because they are so close to the surface of the soil. Do not mulch too heavily, however, because it can weigh down the soil. This will make it difficult for the roots to get oxygen. About an inch of mulch should suffice.

Don't forget to get your septic tank pumped periodically, such as by All County Operations, so that your hard work doesn't go to waste!