posted 14 years ago
When I worked in a retail nursery in Seattle, WA we rarely carried ornamental Malva spp. because rust was so common. I am not aware of a solution. If you are in PNW (assumed by moniker), this has been a nasty spring for such vulnerabilities.
Paul Cereghino- Ecosystem Guild
Maritime Temperate Coniferous Rainforest - Mild Wet Winter, Dry Summer