Sprout
You have to put flowers in a bright place if you want them to sprout. If they're left in the shade they'll just rot.
Picture your flowers sprouting out of the ground in the bright spring sun.
ほう
きざ, めばえ, も
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You want to grow these sprouts in your home (ほう), not outside. So you need to find the windows in your house that are the brightest.
Take a walk around your home right now. Can you find the best place to sprout flowers? Remember, it has to be nice and bright! Not dark and damp. Don't put them in your closet.