I sent an earlier question regarding Purple Ostespurnum but forgot to include a photo. I have attached it below.

Question

My African Daisies (purple osteospurnum) were planted in Spring 2017 and bloomed like crazy. Despite fertilizing regularly this year they are not blooming much at all. Should I wait to see if it develops buds or does it need to be pruned/cut back? There are a number of long leafless stems on the plants.

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Answer 1

This may be a case of over fertilizing; excess Nitrogen may give you a big leafy plant but little or no flowers.
A soil test is the only sure way to know what is happening in the soil.
These links have more information.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/too-much-nitrogen-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm