Willpower, Weeds and Walking the Walk

My roses have aphids, my daylilies have rust, my clematis died overnight due to a fungus, and too many of my tomatoes aren't turning from flowers into little green buds, because the bees seem to have left the building. If I started to talk about the weeds that somehow make their way onto my rooftop (industrious little things, to fly up so high), this blog would get really, really long (even more so than usual).

So why won't the bugs and plants that I want show up, when I seem to have plenty of the ones that I'd rather have stay away?

(Oh lord, I could so easily take that as an analogy for so many other things in life, but I will refrain. For the time being, at least.)

It has taken every ounce of willpower I have not to go to my local hardware store, buy every pesticide and herbicide known to humankind, and spray the living daylights out of every square foot of my roof garden. But I guess one has to walk the walk when publicly committed to trying to live a green guru sort of life.

I did, however, make one natural discovery this year that has made the weed thing a bit better for some of my friends and clients - landscape fabric. At UrbanSage (my garden design company), I have gotten to play off of the rooftops a little, doing some work for people who have actual earth in which to plant. And those who put down landscape fabric underneath their mulch are having MUCH less of a weed problem than those who didn't (and who are now spraying nastiness in the form of chemicals). So - if you are trying to combat weeds, consider trying it out - it also retains moisture so that you have to water less often.

As for me and my rooftop woes... I'm taking comfort in the tomatoes that I do have and in the fact that I again have enough mint to support all the NYC restaurants in their mojito-endeavours

Happy gardening to all you gardeners - this is the last landscape/garden tip for a few weeks..

-Heather... off to remove the dead leaves from the rusted daylily...

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Tomatoes are mostly pollinated by bumblebees, and I suspect that bumblebees aren't common in your urban rooftop garden. You might try hand pollinating - I've never done it but I've been told you use an artist's paintbrush to "buzz" the flower like a bumblebee would.
Good idea... I had lots of bumblebees the past two summers - they just seem a bit less enthusiastic this year for some reason. I'm off to dig out old watercolor paintbrushes I haven't used in years and see what I can do :). Do you have tomatoes?
Don't forget some mulch on top of the weed cloth. If you're working with a larger garden, try your local landfill--they often have mulch & compost much cheaper than the garden stores. A resource for small gardens: Square-foot gardening by Mel Bartholomew. Great for working with planter boxes & other gardens in small spaces.
FYI - Newspaper works really well as a ground cover too. Lay it out in overlapping sheets around the base of your plants, water lightly until damp and then cover with mulch. Weed control and recycling in one step!
Can you use old clothing or carpet pieces, then cover with mulch? or is there danger of chemicals from the fabric/carpet leaching into the soil?? I have a lot of old ratty cotton (sorry, not organic) t-shirts I thought about using but I'm not sure-any suggesions?
Another GREAT weed control is newspapers--Put about an two inch thickness, overlapping each section on the ground. The thicker the better. Cover with whatever you're using for mulch-and Voila! -weed control for the time it takes for the newspapers to erode. By then the nasty roots have shriveled up and gone south.
I have a real estate client that says if you have moles that you want GONE in a permanent way, put out Big Chew bubble gum. Only Big Chew works. Apparently, they really like it but can't digest it. Not too animal friendly but you won't have moles digging up your yard!
I have used newspapers as ground cover and it worked great, but since I don't get the paper anymore (save a tree!) I have to either depend on neighbors or purchase groundcover. Unfortunately, home improvement stores mostly offer groundcovers with weed killer and other chemicals in them or made from plastics, so read the label! Burlap is usually available untreated...
Do not use old clothes or carpet. Most carpet is nasty and full of synthetic petroleum based fibers, benzene, formdehyde and a strange brew of chemicals. Plus if it is treated with an anti-stain formula, it won't decompose very well. Same with clothes. Unless you are sure that your clothes are 100% natural fibers do not use them. I would suggest however that you recycle them in a different manner. Burlap is usually available cheaply as are old newspapers. Those are much better solutions.
Does anyone have suggestions for weed control between bricks? They are pesky and stubborn.

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