Euphorbia Plants
Q.

Euphorbia with black spots

Zone Phoenix AZ | ginagold added on April 12, 2015 | Answered

Our euphorbia "lady slipper" plant has developed black spots on the tips of the stalks. We bought this about a year ago and it has shown no signs of change in the entire time. We had it in a clay pot and just moved it to a plastic pot because it didn't seem to dry out much in the clay. Now the stalks have black spots in the tips. What does that mean?

A.
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Downtoearthdigs
Certified GKH Gardening Expert
Answered on April 13, 2015

I assume you are saying you have not had any flowers form on your Euphorbia.
Though the stems look green and viable, I believe your issues are growing environment.
I have listed a few links for you to get your plant growing--hopefully!
The Black Spots are most likely a fungus and would need treatment, Neem Oil would be a good choice.

https://www.gardeningknowhow.com/ornamental/flowers/orchids/lady-slipper-wildflower.htm

https://www.gardeningknowhow.com/plant-problems/disease/black-spot-fungus.htm

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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