Hi Judith Truly,

Due to UseNet convention does not encourage private email, so I post my
reply here. I hope you don't mind. :-)

I live fr inland so salt is not a problem.
Sea water are problem for those near sea, it may not happen yearly, can be
once in the ten year.
If your land are sit between wetland and river, you may face problem of low
PH water that contain high iron at dry period.
Debris and mud coated on plant bring by flood will kill a lot of plant.
The sharp change of PH due to flood water will weaken plant.
....

I have seen several wildflowers
that seem to do well
For every new land, I will first put in those I found nearby, and these
plant will remaind as majority. If something bad happen, it may come out
these plant are those still remain there. These may not be wild flower, can
be those ecotype that cultivate by local people, that had go through
generation.

try to find them
in the nursery.
Try to get those you found near your place, even they are the same species,
but those ecotype you found had go through generation of selection, and
having better chance of doing well than those from nursery. For those wild
flower, if the law allowed, collect some seeds or cutting, but should less
than 20% of what you found.

Thanks again.
You are welcome. :-)

Sorry for my bad English. g

Regards,
Wong