[Boris]

I've grown some raffs from seeds. Only 4 plants of a seedpod came through. They are now >20 cm diameter after 22 months after sowing. I keep them also in a terrarium. 22°C in the night and 28°C day. Strong wind from a ventilator dries the pots fast out. So I have to water them daily. The medium is 2 parts sphag and 1 part perlite and a drainage of pine bark. The pots are 8 cm sqare which seems still enough.