Monstera Thai Constellation Care Guide Happy Houseplants Pink Princess Philodendron New leaves turning brown! It keeps sprouting new leaves (yay!) but none of them seem viable. They turn brown black and crispy at the tips, don't uncurl, and seem to wilt rot from the Philodendron mandaianum Erubescens Hastatum Hybrid This week's featured non native invasive plant species is Japanese knotweed (Fallopia japonica). This is one of the most aggressive and hardest to eradicate terrestrial invasives in the state. It was brought over Fungus on my Monstera? : r plantclinic