Onion Dieback


” My red candy apple onions only grew to about 1 1/2″ in diamter and the green tops died back.  Are they done?  Should I dig them up?  leave them in?  I was expecting them to be more the size of a racquetball or tennis ball and that the green tops would remain, just dry up.

Susan”

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Hi Susan,

Thank you for the email regarding your Red Candy Apple Onions.  Dieback of onion tops signals that the onion is done growing and ready to be harvested. If left in the ground, the onions will start to send up shoots again like it is spring, but in the process of doing so will ruin the bulb that has formed.  Also, the ‘reshooting’ will not make vegetative growth, but will produce a flower head and seeds.

Red Candy Apple onions should be much larger in size when mature.  Onions do like cooler temperatures and are prone to dying early if it becomes too hot (temperatures over 95-100 degrees).

I hope this information helps you out.  If you have any other questions, please feel free to ask.

 

© Mertie Mae Botanics LLC and Horticulture Talk!, 2013. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Mertie Mae Botanics LLC and Horticulture Talk! with appropriate and specific direction to the original content.

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