Apologies in advance if this has been covered before. I did search the forum first. I promise :-).
I successfully germinated Drosophyllum lusitanicum early this year (thanks again, Mike W. for the seeds), and the plants have transitioned nicely from their seedling peat pots to large clay pots sitting in trays of water.
Here (USDA Zone 7A, US Mid-Atlantic piedmont), the weather is starting to warm up (finally!) to mid-70s to mid-80s F during the day and low-to-mid 60s F in the evening. This will soon rise with minimum evening temperatures in the 70s (typically) and highs in the 80s to 90s. The plants are in a well-ventilated greenhouse protected from rain.
My question (after that long intro):
When should I start letting them dry out? The 14" pots are dry on the surface, and the 9" pots are just barely damp on the surface. I don't want them to rot, nor do I want them to dessicate.
Does anyone have advice here? I'm assuming that I should do it gradually, but not sure when to start, or how quickly to transition.
Also, should I worry overmuch about our local humidity? I'm assuming that these Mediterranean coastal plants would naturally get moisture from the ocean. Is this analogous? I can't do much about our water vapor, except through the ventilation, but I'm curious if I should try harder.
Thanks in advance for any help y'all can provide.