: Every master gardener likely has a "long line of dead plants" behind them. A mature thumb is developed by observing plants, recognizing subtle signs of distress, and learning from mistakes.
"Mature thumb" often refers to the (also called redshank or smartweed ), a plant easily identified by its maturing leaves. How to Get a “Green Thumb", Gardening for Beginners mature thumb
In the gardening world, a mature thumb is the result of persistent effort rather than innate talent. : Every master gardener likely has a "long