Agave americana leaves have gone yellow
By Gray
Leicestershire,
United Kingdom 
My Agave Americana has been outside all winter, on a part-covered doorstep. Its leaves have gone yellow - any ideas on how to correct this problem - they are not soft (as I would expect if it was frost damage). An Agave Parryii nearby has no such problem.
On plant
Agave Americana
2 Apr, 2009
Answers
Have you checked the soil for grubs?
3 Apr, 2009
Hi Gray, I have several of these that have been outside in the frost but they are bigger than yours. The outer leaves have gone yellow or brown but the inner ones are still green. You may find that the centre is still alive and will regrow. I think its just frost damage. The bigger they are , the better they survive. One I put under a tree is still OK.
Hope yours recovers!
3 Apr, 2009
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Previous question
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I am afraid your Agave is dead. I lost many of mine this past Winter.. Keep it for a while just in case it recovers.
2 Apr, 2009