Thank you very much for sharing your growing regime. I love the wild form with a tingle of greenish at the end of each petals of bellina. I envy you that phals can do well at your location in Malaysia even though it can be hot & humid. But while i try to grow in high rise flat in Singapore, we always faced humidity and pest issue even though proper quarantine is done. Especially spider mites is my greatest enemy, i have many phals died due to this pest. I try many ways like lime juice, neem oil & white summer oil still there are always around after many sprays. How you perform your pest control?
Sorry for so many questions.