Frozen Calathea?

Question

My three varieties of calathea all died after living happily in a bright room near north-facing windows for more than a year; I suspect I let the house get too cold during a few frosty nights we were unprepared for.

How low does their temperature tolerance go?

Thanks,

Rob Maryland

Cereus-validus-........... · Accepted Answer

Above freezing.

Anthony B · Answer

Rob, Calthea, like most torpical/houseplants, begin to become unhappy(shedding foliage, turning yellow,esct.) at temps below 55 degrees and will begin to die at temps approaching 40 degrees and below

Anthony B Ky Certified Nurseryman

Cereus-validus-........... · Answer

.....and when the temperature goes below freezing, they are irrevocably dead.

Anthony B · Answer

Truth, Cereus..Truth

presley · Answer

I doubt that the interior of a house got below freezing. In reading the original post, my impression is that they simply didn't turn the heat on some of those frosty nights -and I suppose the interior of the house probably got down to 45 or even 40.  I don't remember the exact numbers, but I think it takes a well -insulated house several days to get below freezing even if the outside temperature never rises above freezing.

Cereus-validus-........... · Answer

If you like to coddle dead plants, go ahead and waste your own time. Just don't recommend for others to do it.

One day on a university campus I saw a worker watering an obviously dead stump of a tree. I asked him: "How much water does a dead tree need?" The man became very annoyed and said "I'm just doing what I was told to do." He was an ideal pawn of a state worker!!!

Robert · Answer

"presley"  wrote innews:         It got pretty cold, but probably not freezing - we were out of town and left a couple of the upstairs windows open and heat off.One of the plants revived; the other two are working on becoming compost.RobChevy Chase, MD

Frozen Calathea?

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