my lupines have produced one flower only, and stalks and leaves. What is the problem?

The lupines are grown from seed in sunlight and shade.

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1 Comment To "my lupines have produced one flower only, and stalks and leaves. What is the problem?"

#1 Comment By GKH_Susan On 08/11/2019 @ 9:21 pm

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 ^[1]

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