posted 11 years ago
I'll split my two cents on this into pure function and aesthetics.
Overall urban environments tend to be drier due to all the concrete and masonry, coated in salt spray where there's ice and snow, and they get trampled and pissed on by human and dog alike. Tough environment needs tough plants. Fortunately there are allstars that take it rough, are tasty, and look good. These bush choices can be the entire 'garden' or a barrier for pollutants:
Goumi - 6-8' tall and wide, gorgeous leaves, exquisite fruit, fair salt tolerance, drought tolerant, recommended varieties Red Gem & Sweet Scarlett (Burnt Ridge nursery)
Rosa rugosa - 6' tall with nice hips! very salt tolerant, also good for stabilizing/covering slopes, make tasty jellies, wine, rose water.., Raintree nursery has an awesome collection
Aronia - 5-6' tall, salt tolerant, heavy producers of berries great for juice and cider making, take drought or flood, makes a ornamental hedge, pretty fall color, One Green World nursery
Sea Buckthorn - 6-10' tall with narrow habit, takes salt, piss, etc. amazing tonic berry, beautiful foliage, show stopper, One Green World has big selection for different climates
Aesthetics. So, I'm guessing a common complaint is exposed cardboard and newspaper or patchy looks. In uber urban and high brow suburban areas I tend toward using newspaper with a heavy covering of soil/compost or woodchips so there is no danger of exposure and I edge my beds so that there is a definitive break between grass and bed. When planting trees in a food forest type patch I shape it like an island, giving it curves with nicely edged borders and throw in sexy polycultures like wild blue indigo(nitrogen fixer), asters and yarrows (insectaries), comfrey (mulch), and English lavender (pollinator). Choosing striking specimens that thrive with neglect is another good practice - contorted jujube, Asian persimmon, Flying Dragon citrus, quince, juneberry, medlar, etc. Adding in a generous amount of stone helps it pull through the winter and adds a formal look 'society' regards - just don't use a little here and there - make a show of it with a herb spiral or dry stack terraces, yeah this might cost you a bit but it'll make a big difference. Tall clump grasses are also a good addition for year round beauty and habitat. In general I would encourage loosing your grip on being hard core permaculture homesteader type in urban/suburban settings and imitate the patterns around you but in functional and productive ways. That there is the essence of my new book- pick it up for inspiration:)
Michael Judd
www.ecologiadesign.com