Retaining wall creates a barrier of a few inches. Any thoughts on how to approach?

by Wiscoman

29 Comments

  1. Organic_Physics_6881

    No. The moment it rains, it’s going to wash right down that slope.

  2. starone7

    You can get mulch to stay on a hill by creating a web of either string or netting to hold it in place. I drive in 4 inch nails part way and then create an elaborate web of string and then add two inches of mulch. Then you drive the nails in further and top up the mulch to hide it. It works very well.

    I did one project this year with netting instead but I need to go back still and see how it did over winter still

  3. Best I’ve heard for these types of slopes is gorilla hair and potentially an intermediary hand-built terrace, potentially something like large landscaping rocks or a straw erosion mat to break up the center. However, what you really need here are more plants. This looks like California to my eye so I suggest you look into something like a slope control mix like [this one](https://store.theodorepayne.org/products/warm-season-slope-mix) or native grasses, sedges, shrubs, and/or perennials (e.g. yarrow or poppy). Having a large mixture of deeply rooted plants will both secure the soil to the root system, cutting down on movement and erosion, but will also provide natural barriers for the mulch reducing how much washes out or moves downhill.

  4. The_Poster_Nutbag

    You need groundcover plants. Nothing else will work except structural/man made options and those rarely a desirable long term solution.

  5. cEquals1

    lay horizontal sticks and use gorilla hair is your best bet. You will have to do some occasional cleanup though.

  6. ExampleEffective7088

    Just terrace it. Everything you do to it is just a step toward terracing. Trust me. I’ve had this yard 15 years.

  7. Striking_Fun_6379

    This is not an ideal blank slate to work with. I would – if I had the funds – build a deck. It looks like that is where the sun is this time of year. Your horizon view will increase 100%. Small trees and shrubs could be planted in front of the retaining wall to screen the pilingings.

  8. JColt60

    White clover gets 4” to 8” tall un mowed and would keep soil in place. My uncle has a hill with it similar to yours and he put bird feeders and baths and some butterfly attracting plants here and there. Very relaxing to look at from patio.

  9. Public_Classic_438

    I would just do a bunch of perennials

  10. WaveHistorical

    Best thing you could do here is plant some ornamental grasses and perennial flowers and shrubs. That slope looks hit and runs to for things that are drought tolerant and hardy. Native plants will do best in this spot 

  11. boganism

    Let me tell you about my old tyres solution,old car tyres,cut out the tyre wall with a jig saw or similar so you now have a big rubber band.fill with good planting material and plant into it.when the plants are established lift the tyres off and mulch the hill.reusable and cheap just looks dodgy for a while.bonus no digging

  12. krumbs2020

    If you pin jute netting over it, yes.

  13. Pure_Berry_8895

    There are Liquid sprays that may hold mulches in place. I think some are  called tackifiers. Might help. 

  14. Seth_Boyden

    A thin layer of mulch is always a good idea to keep the soil healthy. I recommend what others have suggested for ground cover. That’s your best landscaping bet. No matter what you do you, some dirt will come down to your yard area cinstantly.

  15. a3pulley

    Use jute netting and landscape staples. That’s what it’s made for

  16. Iamyodaddy

    What an assortment of materials in the retaining walls. Too bad none of them were built higher.

  17. BillZZ7777

    Yes, mulch goes on all fluffy but eventually kind of forms a loose kind of shell. So if you get any serious rain storms in the beginning, you might get some wash out but eventually it will hold. It might be fine from the getting get-go.

  18. weedhead52

    No, but there is however this new kind of grate that you put there and it does hold stuff like gravel, dirt, and mulch

  19. JaxDude123

    No suggestions from me but it looks like a continuing problem. But you better get it fixed soon. Worth spending real money for a real professional to advise. Half ass will get less than half results.

  20. GardenDivaESQ

    California lilac
    Manzanita
    Toyon
    Ice plant

  21. AccurateBrush6556

    Yes but you need plants to hold it..it will move the first couple yrs but once the right plants spread out then you don’t need much mulch

  22. streachh

    You need plants with deep roots to hold that slope in place

  23. Amazing-Insect442

    Not remotely. That’s one steep hill.

  24. Quiet-Competition849

    You are asking the wrong question.

  25. Nikopoleous

    You should terrace the slope a bit, and add some native plants suited for slopes.

  26. According-Taro4835

    Standard wood chips are going to migrate right over that wall the first time you get a heavy rain. If you absolutely have to mulch it immediately, use shredded redwood or cedar, sometimes called gorilla hair, because the fibers knit together and stick to the grade better than nuggets or chips.

    The real fix here isn’t mulch, it’s root structure. You need to staple down jute erosion control netting directly onto the dirt and plant aggressive groundcovers right through the mesh. The netting holds the hill while the plants establish. I’d check that slope on Agrio’s GardenDream first to test out different mass planting layouts. It helps to see if a creeping juniper looks better than a native grass before you commit to planting the whole bank, but whatever you choose needs to cover that soil completely or you will be fighting runoff forever.

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