Hoya Pubicalyx 'Black Dragon' problems — and how to fix them

Common until the plant matures and settles. Provide bright indirect light, keep it slightly pot-bound, and never cut off the spent flower peduncles — new dark umbels form on those same spurs each season.

Mushy stems, yellow leaves, and collapse follow soggy roots. Use the chunky mix, let it dry well between waterings, and ensure free drainage; the succulent leaves make drought much safer than wet feet.

Developing buds drop after a move, a hard dry-out, or a chill. Keep conditions steady once an umbel is forming and avoid repositioning the plant mid-bloom.

Sap-feeding pests cluster in leaf axils and along the vines. Dab with isopropyl alcohol and repeat; check the dense growth often to catch outbreaks early.