If you are a gardener or tend the lawn to any degree, you see this as a weed and even the sight of a child blowing the seeds into the air may cause a bit of uncomfortable panic.
She sees it as a source of wonder, a chance to make a wish for a dream to come true, or at least for a moment of pretend fun. She relishes God's amazing creation of this plant that is a weed to some, but to others it is a source of medicine, food and even a physical representation of the moon, sun and stars.
To a homeschooling parent, this is just another opportunity to learn!
Perhaps a lesson from Bright Hub on the lifecycle of a plant is up your alley.
Or, some interesting and fun facts about dandelions from "My Dandelion is a Flower".
Use it as a chance to teach science or a moment to sit back and relish your child's childhood wonder. To me, the joy she expresses when blowing the white puffy seeds from a dandelion is worth the work of future weeding.