Allium bloom times; planning companions
I'm confused about allium bloom times here in z7. Most catalogs say that 'Purple Sensation' blooms in May/June. However, the same catalogs say that my Dutch irises bloom in May/June. My Dutch irises were blooming April 12th-May 10th according to the dates on my photos.
Does anyone have experience with this allium so that I can plan for companions? If they really bloom with the Dutch irises, then that's pretty easy. If they bloom later, then I need to figure out what blooms in my garden at the same time.
I really want to add alliums and have already postponed due to our drought last fall.