Nepenthes 'Miranda' Black Spots: Severe Light Deficiency

Black spots spreading from leaf centers, dying growth shoots, and bright green leaves on N. 'Miranda' indicate critically insufficient light. This hybrid needs strong light—several hours direct sun plus bright filtered light. Red leaf color signals adequacy.

23W CFLs are far too weak for a large Nepenthes. Upgrade to T5 fluorescent tubes (dual 58W actual output, 12" above plant). May need two fixtures. Without intense light, the plant cannibalizes its own tissue.

Also: white soil patches = mold from low light + wet soil. Treat with sulfur fungicide. Water only when surface dries.

Large Nepenthes are extremely difficult under artificial light. Consider smaller species or accept winter pitcher loss.

Reality: Our nursery uses 400W metal halides ($250/fixture) for winter Nepenthes. Home lights rarely suffice.