Rain or waste water and drainage manholes are unsightly in the garden. It is possible to conceal them with plantations. What precautions should be taken to hide a manhole with plants? Be careful, you have to follow a few rules to hide them without the roots damaging the pipes.
There is of course no question of planting trees with large development near a manhole. Over the years, this or the pipes leading to it would be damaged or even lifted. If it is possible to plant shrubs, grasses, perennials with evergreen foliage, the outlets of the manhole must be perfectly jointed to prevent the roots from inviting themselves inside it. (This is the biggest risk)
In this example, this manhole was poorly grouted at the pipe inlets. The roots in search of moisture and organic matter have penetrated inside it and form after a few years a real “bun” which prevents any flow.
You can use a tiered planter to camouflage these access points. If you have an older septic tank, the lid may be buried and difficult to locate. You can also install chimneys to facilitate access.
How to cover a septic tank?
I can’t cover the top of the lot above my pit with asphalt, but can I put a weed liner on it? Do not place a waterproof liner over your septic tank. You can put grass, sand, gravel. How to arrange the top of a septic tank?On the septic tank, just place the gravel directly on top of it. For the spreading area, it is important to have a bed of soil to avoid damaging the drains. Once the soil is laid, install geotextile on it to prevent weeds from growing under the gravel.
How to dress a mound? You can put in perennial ground covers that will hold the ground together while keeping superficial roots: geranium macrorrhizum, ivy, nepeta, serpollet thyme, cerastium… This will make a flowery, dressed mound that will attract pollinators. What plant to put in a ditch?A few clumps of grass between large stones, which have the function of retaining the earth, and voila. Here, the layout of the ditch is clearly embellished by daylilies, cushions of woolly thyme, real perennial geraniums, hostas, bergenias.
What tree to plant near a walnut tree?
Some Acer palmatum are also cited as resistant to juglone. Some acid soil plants seem resistant. I have sometimes seen roses and laurels. But it is possible that under black walnut (Juglans nigra) juglone is more potent. How to hide a sewage treatment plant? Ground covers indeed, with grasses to make vertical lines, or even small shrubs (or not small, it depends on the space!). See more on the Gartendek website.
