Question
So it could survive outdoors in AZ?  I would love to plant it in my front yard!  Thanks!
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Followup To

Question -
I received an indoor calla lily plant as a gift about 2 weeks ago. It was very moist when I got it and in great condition. The day after I watered it the leaves started yellowing and dying, and some of the blooms are even dying before they open.  I thought I was giving it too much water, but after seeing your past posts I'm thinking maybe I haven't been giving it enough.  It's still blooming, but it doesn't look as healthy anymore. I'd like to save it before it gets worse if possible.  It's indoors by a window so it gets indirect sunlight, and it's about 76-78 degrees in the house during the day. I live in AZ, so it's too hot to put it outside.  I'm planning to repot it, but what else can I do to keep it healthy?

Answer -
Jamie,

Calla lillies are bulbs. It may have been blooming for some time before it was purchased for you. Who told you it was too hot to put it outdoors? It loves and needs sun. In your climate place it where it will get sun in the morning and shad in the afternoon. Calla lillies are tropical and if you are in zone 10 they can be planted in the ground and left their year around where they will bloom annually like tulips in the north. At the very least, indoors it needs to be in a south facing window with no blinds or drapes. I would not reccommend repotting it. It can live forever in a 6 inch pot. The following site has more info:
http://www.flowersbulbs.com/retailbulbcare.cfm

It needs evenly moist soil. Do not let it dry out. But I think your real problem is not enough sun.  Fertilize it monthly. It will eventually go dormant and then you need to let it dry out and put it in a cool dry location in a brown paper bag. Wait about 3 months then start checking on it and as soon as you see signs of new growth you need to bring it out to a sunny location and start watering again. Good luck.

Darlene

Answer
Where are you in Arizona?  If you are in zone 10 yes, plant it in a location that gets sun in the mnorning but not in the hot afternoon. Also a place that you can water it regularly and where you will notice it next year when it comes up so you can start watering it again.  Let me know where you are and I will tell you the zone you are in.

Darlene