Runaway calla lilies

Question

I bought a house last year and have been trying to replant the garden with more native type flowers; however, when I dug up some calla lilies and moved some of the dirt around I found I've spread these! Even in the area where I replanted, these lilies are coming up in between my new plants. Is the dirt contaminated even if I pull up the majority of the bulb? I've even tried smothering them with rocks and pieces of old carpeting but they still keep coming up. Help!

Shannon

Answer

I am afraid that you have moved the Callas around. There is a main bulb that produces small "offsets" to the sides. Even a small piece of bulb can sprout as long as it has an eye (like a potato). You are going to have to dig below these sprouting Calla to get the whole bit.

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