Question
Hi,  I have many calalily seeds and have been successful at growing
them.  They are  white cala's and I am wondering if there is any way to
change the color of them before I plant them.  I would love to grow
purple cala's.  Thank you.

Answer
Hi Michelle,
Thanx for your question.  White calla lilies are Zantedeschia aethiopica and are always white.  The colored callas can be a number of other species but not aethiopica.  So, if you have white calla lilies, you cannot do anything to them to change them into another color.  I hope this helps.
Tom