What Causes Immature Buds To Fall Off Of Lupine Spikes?

Question

It doesn’t happen to all the spikes, but to many. Plant is in a container.

• 

Answer 1

I'm not seeing any sign of disease, which leads me to believe one or two things- That a lack of humidity could be the culprit, here, and/or lack of rootspace.

You can try misting on occasion. This may help, but since they have a taproot system, planting in a taller container will be the only way to mitigate root space issues.

For more information on their care, read this article:

https://www.gardeningknowhow.com/ornamental/flowers/lupine/growing-lupines.htm