Humidity Blisters

Trouble shoot problems you are having with your cactus.
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jerrytheplater
Posts: 1153
Joined: Mon Mar 22, 2021 7:38 pm
Location: Bloomingdale, NJ (USDA Zone 6b)
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Humidity Blisters

Post by jerrytheplater »

What are Humidity Blisters? I have never heard of these before.
Jerry Smith
Bloomingdale, NJ
45 inches (114 cm) rain equivalent per year, approx. evenly spread per month
2012 USDA Hardiness Zone 6b: -5F to OF (-20C to -18C) min.
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Steve Johnson
Posts: 4514
Joined: Thu Nov 03, 2011 4:44 am
Location: Los Angeles, CA (Zone 10b)

Re: Humidity Blisters

Post by Steve Johnson »

jerrytheplater wrote: Wed Jan 11, 2023 4:07 am What are Humidity Blisters? I have never heard of these before.
Read this:

https://thesucculenteclectic.com/unders ... ucculents/

I realize that the source is a succulent website, but the principles described there apply to cacti too.
If you just want photos without all the blather, please visit my Flickr gallery.
My location: Los Angeles, CA (Zone 10b)
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jerrytheplater
Posts: 1153
Joined: Mon Mar 22, 2021 7:38 pm
Location: Bloomingdale, NJ (USDA Zone 6b)
Contact:

Re: Humidity Blisters

Post by jerrytheplater »

Steve Johnson wrote: Wed Jan 11, 2023 4:30 am
jerrytheplater wrote: Wed Jan 11, 2023 4:07 am What are Humidity Blisters? I have never heard of these before.
Read this:

https://thesucculenteclectic.com/unders ... ucculents/

I realize that the source is a succulent website, but the principles described there apply to cacti too.
Thanks Steve. I just read it and learned something new.
Jerry Smith
Bloomingdale, NJ
45 inches (114 cm) rain equivalent per year, approx. evenly spread per month
2012 USDA Hardiness Zone 6b: -5F to OF (-20C to -18C) min.
User avatar
Steve Johnson
Posts: 4514
Joined: Thu Nov 03, 2011 4:44 am
Location: Los Angeles, CA (Zone 10b)

Re: Humidity Blisters

Post by Steve Johnson »

jerrytheplater wrote: Wed Jan 11, 2023 2:25 pmThanks Steve. I just read it and learned something new.
You're welcome! :)
If you just want photos without all the blather, please visit my Flickr gallery.
My location: Los Angeles, CA (Zone 10b)
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ohugal
Posts: 409
Joined: Sun Aug 18, 2019 10:45 am

Re: Humidity Blisters

Post by ohugal »

Ah yes, edema... I've had it on an Opuntia ficus indicia. Too much water and poor ventilation. They were white blisters.
Location
Antwerp, Belgium
temperate, maritime climate with mild winters and cool summers
hardiness zone 8a
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