We are going to offer several of our favorite riparium plants along with a few new ones as small seed packets. If you have a little patience growing your own riparium plants from seed can be fun and rewarding.
I might have seeds for cat palm (Chamaedorea catractarum) on the way pretty soon. This is a great plant with a distinctive tropical look perfect for larger riparium setups. The seeds of cat palm start to lose viability after a couple of months and should be planted as quickly as possible, so I hope to turn them around as quickly as possible. Please send me a note if you might like a few seeds.
For a palm the seedlings of C. cataractarum develop pretty quick. The plant in this shot is one that I grew from seed and it grew into this full-sized specimen in about one year.
I am still snooping around for seed sources, but here is another possibility: Pandanus tectorius.
P. tectorius is another great choice for larger riparium setups. It grows very well in riparium planters in freshwater or lightly brackish water. It can handle a certain amount of salt because it grows on the beach in Hawaii and elsewhere in the Pacific.
As it grows P. tectorius develops these awesome stilt roots...
Buttonbush (Cephalanthus occidentalis) looks like an interesting plant to try. This plant is a member of the coffee family (Rubiaceae) and grows in swamps in the Eastern US, Mexico and the Caribbean and it blooms with very pretty white globe flowers. I wondered if this plant would be suitable ofr growing indoors--a lot of native trees and shrubs won't grow inside--but I found several references to keeping it as indoor bonsai. One picture that I encountered even showed a bonsai plant only about 16" tall with several flowers on it.