Calla questions

Of three different callas I have, only one bloomed this year. Does anyone have any ideas what I can do to make them bloom next year?
Next question; The ones that did bloom have seeds. When do I harvest them and what do I do with them after they are harvested? Thanks, any help is appreciated.

I have the same problem...

I have lots of different callas that I planted in mass (in early June cause I moved) is that why none of mine bloomed this year? they also only get about half a day's sun, do they need more sun? Am I a bad mom?

Angel and mini, read this and see if it answers your questions. Sorry don't know how to hyperlink yet! ;0)http://www.ubcbotanicalgarden.org/forums/showthread.php?t=4975

Thanks for the info. Still don't know why the other two didn't flower. Anyone?

I, too, would like to know why callas don't flower. I have tried everything I can think of. I planted 3 in a pot, and although I had beautiful foliage, nothing ever bloomed. The original stems turned brown and died, and new plants are emerging from what I believe are corms that came from the original. I also planted several in the ground, but not much happening there, either, but I think that's because I planted them a little late. I am very dissapointed in them. I guess I will repot and find out what is under the soil.

I bought my first calla lily bulbs last spring. Three out of four flowered and the fourth one the dog dug up so it wasn't in very good shape. She dug it out of a container, very unusual for her but I guess she had her reason. Once she got it out she just dropped it on the dirt and left it there. I replanted it but it just sort of rotted. Anyway, I need to know what to do with the bulbs over the winter. Do they need dormancy? Can I just keep them in a pot in some sunlight? Two are losing their foliage/turning yellow but the third one (different variety) still has lovely foliage. I brought them inside because we have had a couple of nights of frost.

Could someone advise me on what to do with them?

Thanks.

I have no answers, but wanted to share a funny experience. Today I took advantage of a beautiful day to clean and trim up the flower beds. Grass had really overgrown the end of one bed, and I used the weed eater to trim it up. I saw a strange looking weed and stopped weedeating to look closer. Imagine my surprise to find that this was a calla lily! After I pulled all the grass away it was apparent that the corm had not been planted but grew on top of the ground, eventually being covered by grass. The only thing I can think of is a few months ago I had some calla lilies that I had planted in a pot that had gotten mushy, smelly and I thought were ruined. I threw them out in the yard, thinking they would be ground up when I mowed. Not very tidy, I know.

I started looking around and found two more. These look very nice and healthy but the ones I have in pots now look pitiful, all yellow and brown. Guess I know now that I just can't grow these things in pots, but they will do just fine in the ground. Hope they make it through the winter!

Some of your questions might be answered if you look at the latests posts on this thread

http://davesgarden.com/forums/t/622919/#new

Seed heads should be left to completely mature, let the stems die back. You can clean off the outer if it's mushy.or leave it until next year, I leave mine on top of pots in a cold greenhouse over winter and they germinate in June the next year, which is a good time to either pot them up once germinated (cover with a little compost on the top of the pot) or take them off and sow separately, just under the surface.

My callas go through a lot of frost in a cold greenhouse, -9C and lots of cold weather, but they need to be well grown for a start. New corms I have started ealry inside and left only slightly damp until they start to grow, keeping just moist until the season is in full swing. A healthy bulb, seedling or offset you have grown yourself will be able to tolerate harsher conditions, the bought ones are not grown in conditions you would grow them in and they can sometimes give up the ghost.

Calla Z. aethiopica is pretty bullet-proof. I've found Calla Z. rehmanni is a lot pickier about conditions and needs different care: summer bloomer, more sun, dormant over winter.