The insecticidal soap from Bonide at Amazon is a well-rated option. Vladan Nikolic (Mr Houseplant) says, 'You can prune your lipstick plant’s stems after flowering to encourage new growth.' You should ...

I fertilize my lipstick plants every one to two months from the spring through fall. I prefer to use a balanced fertilizer labeled for houseplants and dilute it to half the recommended strength before ...