I've have been having a devil of a time getting N. hamatas to thrive. I have over 200 Nepenthes species and hybrids, including about 6 hamata hybrids all of which are growing like mad!, but for some reason, I'm failing when it comes to growing N. hamatas species.
I believe I'm supplying the correct humidity levels, but I don't know if it's my growing media, temp or both. I've been able to keep the day temps between 80's, but my evening summer temps don't get any lower the low 70's.
As for my media, I have tried a mix of LSM, Fir bark, perlite, mesh pots, and there seems to be no real root growth.