What most people think are flowers, are actually leaves. The flowers are the little yellow things in the center. Commercial growers will keep them in total darkness for about 12 hours a day beginning around October This way, they can't make chlorophyll and will lose the green color in the leaves. Each December I incorporate this as a lesson in my science class. The students are always amazed when I tell them that the bright colors were always there but were masked by the green chlorophyll
Here is a picture of one that I grew in my yard last summer. It thrived in our hot humid weather but it won't survive after the first frost. |
This is a picture that I took right after I transplanted it outside last summer and you see from the previous picture that it grew a lot over the summer. |
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