This is an experiment I’ve been wanting to try for years. Better for the spring and for one large or two cherry tomatoes, using a couple of bags of gardening material stacked on top of each other (potting soil on top, the “good stuff” underneath). NOTE: the bag of manure is COMPOSTED MANURE – it’s got an NPK of 1-1-1 so it shouldn’t burn the roots.
- easy to set up
- saves water
- 4-6+” of material for roots to grow in plus the ground below (depending on how thick the bags are)
- expensive (in the long run)
If you were to set up a whole row of these, say a 4 ft. by 20 ft, it would cost you $880! The two bags cost all of $11 + seeds (had some left over so it was $0 for me).
Cut the holes in the top according to the spacing of the crop you’re going to grow in the bags. More for something like leaf lettuce (or just make slits instead), less for broccoli, bok choy, etc.
When you’ve harvested your crop, you can either plant again or incorporate it into the soil, recycling the plastic bags if at all possible (my mother-in-law’s transfer station is now accepting bags, but I’ll need to ask them if these are appropriate when the time comes).
It’s a quick way to smother weeds and extend your garden by a foot or two, takes five minutes to set up, great for a small kid’s garden or some last minute experimenting, but it’s not the way to go unless you’ve only got a small spot on the blacktop or you’re going to transplant the
items later. That being said, we’ll see if I get a quick crop of lettuce before the frost.