My column in today's San Francisco Chronicle was shortened, removing information about using shadecloth to create a windbreak for a garden. It might be a useful solution, especially for a garden on a roof or elevated deck. Today's column is about growing plants on a windy deck, in containers. The reader wanted to know if there are plants that are both drought tolerant and also attractive to pollinators. Indeed there are, and I listed some, but it is also true that bees and butterflies will be less likely to visit if the site is quite windy.
The following information was cut from my column:
Reducing windiness on your deck would not only reduce water loss, but also produce an environment more inviting to bees and other pollinators. While a wooden lattice on the windward side would help, I once wondered if there is a wind blocking cloth. I learned that the best material available is a polyester shade cloth that blocks about 50% of the sunlight. If it blocks less sun, it won't stop much wind, so it's a compromise.
You wouldn't want to put either up on the south side of a garden, or you'd have a shade garden, but our region's prevailing winds are from the west or northwest. A north side wind calming structure wouldn't block the sun, while a west side one would be a trade-off between afternoon sun and wind. You'll have to be the one to decide if that's more help than hindrance in your situation.
Charley's Greenhouse (charleysgreenhouse.com, (800) 322-4707) sells a 6-by-12 foot, knitted, green, 50% shade material with edging and grommets for $52.00.