Male and Female Plants, and Plants That Clean Soil

Ellen and C.L. discuss plants that male or female, how some plants are used to remove harmful substances from the soil, and why it might be good to test old seed instead of automatically tossing it out.
:27   Plant Noob: Dioecious plants
8:33      Eat/Drink/Grow: Phytoremediation
16:48    Love Letters and Questions:  Karen wrote to ask about the seeds she has left from past years.

This leafstack was made from various types of holly. Holly, in the genus Ilex, are dioecious plants that are either male or female.

Sunflowers are often used for phytoremediation

Here is some older seed being sprouted on a damp paper towel. The seed on the lower right has sprouted and can be planted immediately.

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