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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comThey have been beautiful for several years. This year the plants look the same but the flowers have now petals.
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[1] https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
[2] https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
[3] https://www.gardeningknowhow.com/ornamental/flowers/black-eyed-susan/black-eyed-susan-flower.htm: https://www.gardeningknowhow.com/ornamental/flowers/black-eyed-susan/black-eyed-susan-flower.htm
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1 Comment To "Why Does My Black-eyed Susan Have No Petals?"
#1 Comment By BushDoctor On 07/06/2020 @ 10:18 am
This could be a case of too much nitrogen and not enough phosphorus and potassium.
Make sure to test your soil for deficiencies and pH swings, which can cause deformed blooms.
I don't see any signs of disease, so it is likely that the nutrient ratios are off.
These articles will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm [1]
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm [2]
https://www.gardeningknowhow.com/ornamental/flowers/black-eyed-susan/black-eyed-susan-flower.htm [3]