2nd Apr, 2008

Weeds with Shannon of CFUN

I actually did something that was a lot of fun early this morning: a live interview with Shannon Nelson on CFUN in Vancouver. She?s a smart dame and she?s interviewed me before so we do get along. She listens to what you say instead of having one of those overweening egos, which just ploughs on relentlessly. What a pleasure.

?We talked weeds. And, of course, now?s the time to get cracking on them. Most weeds will move into any niche left open to them. So if you?ve got bare soil check out to see if there?s something you don’t recognize or didn?t plant and get it out.

?An old chisel is my handy companion for this, but you can buy great weeders like the ones on www.rittenhouse.ca. The weed twister and weeding finger appeal to me and for small gardens wouldn?t be a storage problem—something I worry about all the time.

If you?ve got patches of virulent intruders such as goutweed (plain and variegated) or bindweed don?t just try to pull them up. They have brittle root systems, and every time you snap a bit off, it makes a new plant.

?Save up your newspapers and make a?thick carpet of them over the infected areaThen cover it with plastic held down at the edges with bricks. It can?t be a huge area or this will look awful. If the sun should deign to shine this will fry the weeds and anything else underneath and you?ve got a clean slate to work with.

?Once the ground warms up, pop in cool weather annuals and pansies to keep the soil covered and shade out any possibility of weeds coming back. The shading out of weeds is a really good technique. Of course this means intensive planting which will provide plenty of diversity, and that in turn will make your garden clean and healthy.

?If this doesn?t work for some reason, keep the intruders cut back to the ground constantly. This will starve them of oxygen, inhibit photosynthesis and eventually they will die.

?Banishing weeds from the garden early on will save a load of time later on in the season when there are a lot more amusing things to be done in the garden.

Responses

When I moved into my home almost 3 years ago I couldn’t wait to get going on the garden. I’d never had my own garden before and I had a lawnful of grass and dandelions to convert! Over time I’ve dug and made beds, planted a honey locust tree, a couple of serviceberry trees, a Japanese maple, witch hazel, nannyberry and a bunch more native shrubs and plants, however in my naivete I also planted variegated snow-on-the-mountain. That was in 2006. It hasn’t gained too much ground…yet. One patch is in competition with a patch of wild strawberry (Fragaria virginiana), the other is in my postage stamp front garden, but after all the stuff I’ve been reading about it I’m really concerned about leaving it be and it getting out of control. There are other neighbouring perennials that I would not want to lose which makes the newspaper method difficult unless I dig them up and move them.
Would you suggest that or is there an alternate method?

Are you talking about variegated goutweed? because if you are, you will be taking it out for years. There is also Cerastium tomentosum which is also called Snow-in-summer which is not quite as difficult. You’ll have to very carefully dig all these highly competitive plants out. Remove everything from the bed and winkle all the roots from these plants away and then get them right out of the garden. yours marjorie

Hi Marjorie, thanks for your help.
Unfortunately it is variegated goutweed, so I have my work cut out for me. I could kick myself!
By the way I love your latest book “HOW TO MAKE A GARDEN: THE SEVEN ESSENTIAL STEPS”
I took it out from the library and ended up buying my own copy. Great book to have around.
T.