Planted Tank Guru
Join Date: Jul 2010
Location: British Columbia, Canada
Many rooted stem plants can and will do well in sand but suggest you use root tab ferts in the sand.
Some types that I have had do very well in sand, besides the Hygros you mentioned, are several types of Swords, Lydwigia, Crypts, Vals, Sags, Rotala, Bacopa, and Lotuses.
Of course, Anubias & Java Ferns are unaffected at all, assuming placement on rocks or driftwood with rhizomes exposed.