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Abgeschickt von Robert St-Jean am 04 Juni, 2007 um 14:10:12
Dear Cypripedium enthusiasts,
I'm looking for some advice on growing C. guttatum seedlings.
I have not had any difficulty growing this species on culture medium over the last three years. My problems occur after I deflask them. I've potted some in 1/2 sand and 1/2 perlite and a bit of composted bark, others in 1/3 turface, 1/3 chicken grit and 1/3 composted bark. I water them with rain water only. They all did fine for the first few weeks and then all their leaves turned black and I lost them. The first year I tried these in my basement plant room. The temperature got to 28°C during the day and 18°C at night. They all died. Another year I grew some in front of the basement window at a constant 16°C and they survived a little longer but eventually their leaves turned black as well. I had placed shade cloth in front of the window since to protect them from a few hours of morning sun. It still did not work and the temperature was much cooler at this location. The last thing I tried was planting seedlings outside. I lost all seedlings when it started to get hot outside, around 26°C and warmer.
Could this species be too sensitive to heat to grow in my conditions and can anyone who has had some success offer some advice?
In Cantley, Quebec, Canada
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