How about seeds? Can you get seeds and grow your own?
Have you thought of using white Coneflowers? There are several different ones around, some are shorter than others. I have the PowWow White and they are about 24" but seem more vigorous.
http://www.greatgardenplants.c...
California does not allow anyone to ship a plant that is in soil into the state.
http://www.greenwoodnursery.co...
You will have to get bare root or seeds. However Greenwood Nursery will shake off the dirt and pack them special for Ca. but I think you need to add an additional handling fee. Go to the website and you can read about how they pack them.
quote:
'Orders shipping to the following states: AZ, CA, CO, ID, MT, NV, OR, UT, WA, and WY are subject to a 20% handling charge due to additional plant preparation and shipping surcharges.'end quote
Actually it is very nice of them to offer to do that so you can get the plants you want.