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Yes, as the hostas grow bigger the cardboard is starting to decompose.

Have you thought about using old carpet squares or something like that to cover the area and then cover with mulch?

I would think the "fake rock" would deter the growth of the plants. For example, with hostas they keep growing wider, which is what you want. If you put rocks or fake rock around them they would probably develop fairy ring, where the middle of the plant would develop a large bare spot.

I have used a mixture of Borax and water to fight off Creeping Charlie. It was the only thing that worked for me.

Zone is a gardening zone. You can go online and find out what gardening zone you live in, and this will determine which plants work best for your area.

I would imagine this would also work, but I wonder if the paper would start coming up between rocks if a fine enough base wasn't laid. I would recommend using concrete filings on top of cardboard before laying the rocks down. It would also keep your rocks in place.

yikes!

Hello,I am in Zone 5. I planted lots of hostas, asiatic lilies, oriental lilies, swamp milkweed, veronica, daylilies, and coneflowers.Thanks,Jen

Yes!

I have had really good luck with this method and have used it for at least 15 years. I garden on an acre of land, so the least amount of weeding I can do the better! Over the years, the barrier will start to break down and more weeds will have a chance to appear, but by then my plants are well established and pretty much take any space that weeds would find. The same is true of landscaping fabric, it won't break down but the mulch and items on top of the landscaping fabric will break down and weeds will grow right on top of the landscaping fabric. I have a husband who no matter what, likes to mow shooting the grass into my flower beds, ugh!

You're welcome! I will also be adding how to grow them from seed soon.