
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on August 12, 2019
This is common when there is too much nitrogen in the soil. These are nitrogen fixing plants already. Too much nitrogen will cause leaf growth, but it will have a lack of flowering growth. You can offset this by adding potassium and phosphorus. This will help them to make more flowers, and not take up so much nitrogen. This article will help: https://www.gardeningknowhow.com/ornamental/flowers/lupine/growing-lupines.htm
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