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 ...

You don’t need to apply fertilizer in the winter. I find that I don’t typically need to prune my lipstick plant, but you can if you feel like it’s taking over a certain area in your home. For me, the ...