Cause of bud drop in Aeschynanthus radicans

Question

I received this plant when it was almost dead. I cut it back and it’s been growing beautifully and fast. The plant looks healthy. It’s been in the same place for almost a year, inside, at a South facing window (I’m in the northern hemisphere). The plant gets mostly direct light until about noon. I water it about once a week or a little less (through the summer). I fertilized it through the summer with 12-28-12. There’s no bugs anywhere as I’ve looked through the plant and buds. However it started budding about 3 mths ago and just before they bloom the buds fall off. I’ve probably lost about 10 so far and there’s still a lot that are cropping up along each stem. I can’t figure it out as everything else looks healthy.

Any help would be greatly appreciated!

Thank you
Michelle

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Answer 1

Well you are giving it light, water and fertilizer, so I wonder if the humidity is too low. The lipstick plant is a tropical plant and is used to high humidity. You can mist it several times a week with room-temperature water in a mist bottle.

Here is more on the care of the lipstick plant:
https://www.gardeningknowhow.com/houseplants/lipstick-plant/growing-lipstick-plants.htm

https://www.gardeningknowhow.com/houseplants/lipstick-plant/pruning-lipstick-plant.htm