Hoya Memoria (Gracilis) problems — and how to fix them

The most common killer. Soggy mix and poor drainage rot the roots; let the medium dry 60-80% between waterings and always use a chunky, draining mix in a pot with holes.

Usually underwatering or root damage. If the soil is dry, water thoroughly; if it is wet, suspect rotted roots and check the root ball rather than adding more water.

Too little light is the usual cause. Move to brighter indirect light, never cut off the bare flower spurs (peduncles), and be patient as only mature plants bloom.

Dry indoor air invites spider mites (fine webbing, stippled leaves) and mealybugs (white cottony tufts in leaf joints). Wipe down, raise humidity, and treat with insecticidal soap or neem oil.

Brown limpet-like scale on stems and silvery thrips damage can appear. Isolate the plant, scrape off scale, and treat repeatedly with horticultural soap or neem until clear.

Direct sun bleaches the silver flecking and burns leaves. Move to bright but filtered light to keep foliage colour and prevent crispy patches.