Last spring I bought Calla's from Brent and Becky's, 12 in all I think. I planted 6 in the ground in one of my beds, 3 in one pot and the last 3 in another pot. Some of the potted ones had speckled leaves, all in the ground had solid green leaves, and to make matters worse, only the ones in the ground produced just two blooms! What gives? The ones in the pots looked horrible with just leaves and no flowers! And I guess they like to be in the ground better. lol
All I can say is good luck with getting any to bloom properly and with specks. Sorry I could'nt be more help. Maybe others in warmer zones have better luck than I did.

{{gwi:9430}}

Yes, my leaves looked much like yours. Maybe narrower and floppier. All mine were in pots. I bought mine at HD or similar place. I was thinking maybe they were just too cheap. Poor quality stock. When I looked through Brent and Becky's yesterday I thought that maybe theirs would be better. Apparently not!

That's why I'm thinking maybe the white is more reliable.

I have grown the yellow ones in the past here. They had spotted leaves, but the leaves were floppy. They did bloom, but the blooms didn't last all that long, and the overall habit of the plant was disappointing. I gave them about 3 years in good moist soil in bright shade. After that I shovel pruned them. (My zone is quite different from yours, of course, and they are winter hardy here.)

Last year, I grew the white ones. They are a much superior plant in my experience. The leaves weren't speckled, but they were a rich dark green, provided nice bold texture, and were upright all season. The blooms were lovely, though again, short lived. I am hopeful the plant will be even better this year.

Don't know if this helps you. All the callas I bought were from big box stores in the plastic bags with peat. In a way, it's reassuring that even the B&B bulbs weren't much better...