Yamanaka's Grow list

[Yamanaka]

My Growlist

NEPENTHES
N. Ramispina
N.Sanguinea
N.Bicalcarata (red)
N. ampullaria (Red Speckled) [dying]
N.ampullaria (Giant Red)
N. veitchii x hurreliana [stopped pitchering]
N. Rafflesiana [ wont produce pitchers]
N. Hirsuta (Green)
N.x Lady Pauline
N. alata
N. Albomarginata x veitchii
N. x hookeriana
N. Miranda
N. spectabilis ( having a hell of time with 'it')
N. Ventricosa
N. Lowii ( super slow growth and pitchers well)
N. Belii
N. Campanulata (wont pitcher)
N. tentaculata {mt. Tambuyukon}

I need some help with my ramispina,red spec amp,and my fave sangy.They wont pitcher!the Red spec amp is planted in the garden soil(black soil) and wont pitcher which angers me.