Paphiopedilum tonsum possible issues?

[estación seca]

I don't have this species, but I have a smattering from different sections, plus hybrids, almost all unbloomed seedlings. Most are in S/H, some for almost 2 years, and seem happy. They are growing slowly. This is my first-ever venture into Paphs so I have no idea how fast they are supposed to grow.

Mine don't seem to mind spells of 40% humidity. Have you considered watering more often? In lower humidity the water may not stay as high in the LECA as we might like. Limp leaves sure sounds like they want more water, and it's not harmful to water every day in S/H.

[Salixx]

Originally Posted by estación seca

Mine don't seem to mind spells of 40% humidity. Have you considered watering more often? In lower humidity the water may not stay as high in the LECA as we might like. Limp leaves sure sounds like they want more water, and it's not harmful to water every day in S/H.

That's a good point - I really hadn't thought of it as long as there was water in the reservoir. I did forget to mention that I moved it about a month ago into a shorter s/h pot because I wasn't happy with how high the LECA wicked with the last pot. It went from a taller 32oz deli container to a 16oz.

It also seems that all three of my plants (the seedling is Paph. gratrixianum) might grow in or have parentage from limey areas and thus used to a bit more calcium and mineral content. Do you guys think it would be beneficial to switch to tap water and/or increase the fertilizer to 1/2 tsp/gal, in addition to some kind of compost tea? My tap water is about 130ppm TDS, pH is 7.0 or 7.2 - I can't quite remember.