Why Do Some Plants in the Same Bed Just Don't Grow

If you've got an area of your garden where most of your plants are thriving, but for no apparent reason a few of them just die, this one's for you.

It's easy to start blaming yourself here, wondering if you watered too much, fed too little, or just picked the wrong spot. But before you go down that path, it's worth knowing there's often a much simpler explanation sitting right under your feet. I dug into this on a customer's job recently, and it's a pattern I've come across often enough to know it's rarely about what you're doing.

It might be that you're growing in a sandy, loamy soil sitting right on top of clay. That sandy soil up top drains fine on its own, but the water doesn't just disappear, it moves down till it hits that clay bed, and then it sits there.

Your plant roots end up sitting in that water, and water with nowhere to go loses its oxygen. Roots need oxygen just as much as they need water, so they start to rot, and the plant either gets stunted or, worst case, it dies. Meanwhile the plant right next to it, on slightly different ground, is completely fine, which is exactly what makes it feel so personal when it's not.

Now I'll be upfront, biology isn't going to fix a lump of clay overnight, that's a physical problem. But here's the two-part way through it. The physical side, drainage, raised beds, gypsum where it's genuinely needed, deals with the water sitting where it shouldn't. The biological side is what actually changes what that soil's capable of holding onto long term.

Research back in the 90s showed mycorrhizal fungi can take sandy soil and build real structure with it, the kind that holds water instead of just letting it run straight through, and opens up pathways for roots to grow through ground that used to block them completely.

Get both sides working together, and that patch stops being the one you dread checking on. Roots reach further, water sits where it's actually useful, and the plant that used to struggle ends up looking like everything else around it.

So if you've got a patch where some plants just don't seem to grow no matter what you do, it might be worth having a dig down first. Have a look and see if there's a clay bed sitting under there. Once you know that, you know what you're actually dealing with.

And if biology is part of what's missing, RootWise Balance puts aerobic bacteria, mycorrhizal & trichoderma fungi and humic acid back into the soil, one teaspoon every week. Simple easy fix.

Get RootWise Balance today

If you dig down and find a clay bed under your sandy soil, let me know in the comments, I answer every single one.