Yesterday I posted a picture of the allotment looking eastwards across some vacant plots. If you take a look at that picture you’ll see that the weeds are now waist height, the bindweed is about to come into flower, along with willow herb, and the grasses are ripening their seed. Couch, bindweed and all the other suspects thrive here because the soil is good and bindweed in particular has more than one way of preserving itself, not least by roots growing over a metre down into the soil. Seeds can bide their time for years until favourable conditions come along.
But the next door allotment was in use until two seasons ago, when it was doused with glyphosate and lay there looking sick and yellow for the rest of the season. You can’t blame anyone taking on a new and overgrown plot for seeking out the easiest way of eradicating the weeds so they can start growing food. Those with plenty of patience might cover the ground with black plastic held down by stones or pallets and wait for a season for the weeds to die. The trouble is that this method is good for killing annual weeds, but the real baddies seem to laugh at it. The rotavator is a terrible idea because it just chops the couch and bindweed into little pieces, and every one becomes a new plant.
At this point, just as the desperate realization that this is going to be hard sinks in, along comes the bottle of glyphosate promising to do the job with not much more effort than pumping up the spray and taking a stroll through the weeds. Spray it on, they say, the weeds will die and the weedkiller will be inactive within a day of touching the soil. The trouble is, everything about that statement is wrong. Without venturing into the scientific evidence that long exposure can give you cancer, the watercourses and rivers are becoming polluted and it lasts for years not days –
Glyphosate doesn’t work very well
Trust me I’ve used it in the past, and although it kills annual weeds it doesn’t render their seeds infertile, and it doesn’t kill couch and bindweed either. Of course it looks as if it’s worked as the leaves dessicate and turn yellow, but deep down where the rhizomes and roots live, they’re just taking a break until next season. It’s a con trick because you can’t use it once and enter for the best kept allotment award the next year, since next year the weeds will be back but they’ll be growing through your courgettes and lettuces which you won’t want to sacrifice by spraying again.
Tough though it may seem, the only way to deal with these weeds is to clear the site and then dig it, dig it again and again and then give it the treatment under the plastic and finally cover it with compost, cardboard, mulch or whatever. Even no-diggers need to get the ground as clear as possible before they put the spades on ebay. It’s hard work but by the end of it you’ll know more about your soil than you ever thought possible, you’ll know how it’s affected by rain and drought, the names of the annual weeds and when the sun rises and sets on your patch from season to season. The worms will multiply and improve the soil, consuming organic material and turning it back into plant food. You’ll be able to grow things right from the outset as long as you remove every speck of root you find and dispose of it – not in the compost heap because it seems to survive there as well. Remember the old saying –
The farmer’s boot is the best fertilizer
- and as Nietzsche said, whatever doesn’t kill you makes you stronger!