Leaf disease – bubbles

Question

Last spring I repotted my spider lilies due to overcrowding. I used MiracleGroup Moisture Control Potting Soil. A few weeks later I left for my vacation home and a neighbor watered the plants weekly. When I returned home, I noticed small bubbles had started to form on some of the leaves and over the next few months appeared on more leaves. The winter months are a rest period for these plants, so new leaf growth is minimal. I am hoping to keep these plants going since they were originally from my grandmother and I’ve had them nearly 30 years.

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Answer 1

This looks like a case of plant edema, an environmental disorder that happens when plants absorb water too quickly. Please see these articles for ways to help your plants recover.

https://www.gardeningknowhow.com/plant-problems/environmental/treating-edema-in-plants.htm
http://ipm.uconn.edu/documents/raw2/Non%20infectious%20plant%20disorder%20Edema%20Oedema/Noninfectiousplantdisorderodema.php?aid=233
http://extension.illinois.edu/focus/index.cfm?problem=drowning-and-edema