On Mon, 6 Mar 2006 11:33:46 +0000, Weng
wrote:

Reka, I use pure Seramis as a regular medium (no crocking), water with
rainwater & very little fertilizer. I only need to repot when the
plant gets too big for the pot. Watering is easy - with a hose-pipe
when the surface changes colour :-)

I used to grow epiphytes in 10cm perlag (a harder version of perlite)
in terracotta pots, and terrestrials in Seramis in plastic pots. About
6 years ago, I wondered if Doritis might also grow in Seramis. Then
Doritaenopsis, then Phalaenopsis, then some Dendrobiums followed. Only
Ascocentrum, Aerides, Cattleya, Laelia, Oncidium & Vanda are now in
perlag.

Popular orchids currently in Seramis (not mentioned) are Coelogyne,
Cypripedium, Disa, Paphiopedilum & Phragmipedium.

I don't do too well with Cymbidium though.

Weng

I grow all the Cym in Semi-Hydro with great success. The Cym Golden
Elf has broken several pots because the roots grew so strong. Much
better root structure than other methods we have tried.

Weng, have you read Ray's discussion on Semi-Hydro? It uses a solid
pot with weep holes out the side up about 2 finger widths. That way
there is some reservoir of water but it is not hard to flush or for
the plant to breath.