Definition of «green thumb»

The phrase "green thumb" means being skilled at gardening or having a natural talent for making plants grow well.

I didn't worry too much about my lack of green thumb. (theinspiredroom.net)
I could say something generic and go with the status quo and get green thumbs galore.... (justarsenal.com)
My husband has a very green thumb so I'm betting he could grown them. (dwellings-theheartofyourhome.com)
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