Yes, it's fine. Best to rinse it well, otherwise it's very dusty.

--
Kenni Judd
Juno Beach Orchids

http://www.jborchids.com
"Debra Lewis" wrote in message
...
I ran across some bags of lava rock used for landscaping borders at Home
Depot the other day. Can you use this for orchids? If so, does it need
any special prepping or treating?

Thanks,
Debra