an exceptional aptitude for gardening or for growing plants successfully:
Houseplants provide much pleasure for the city dweller with a green thumb.
Origin
1940-45
Related forms
green-thumbed, adjective
green-thumber, noun
Examples from the web for green thumb
Emphasizes proper preparation and care for gardening success without a green thumb.
When it comes to cultivating a green thumb, gardeners perhaps need only look to their urinals and fireplaces.
And try your best at being a green thumb to learn about growing your own fruits, veggies and herbs.
The terraced, fenced yard provides privacy and an opportunity to flex your green thumb or barbecue on the patio.
British Dictionary definitions for green thumb
green thumb
noun
1.
(US & Canadian) considerable talent or ability to grow plants Also called (in Britain and certain other countries) green fingers
green thumb in Culture
green thumb definition
A knack for growing plants and keeping them healthy: “All my houseplants are in sorry shape; it's clear I don't have a green thumb.”
Idioms and Phrases with green thumb
green thumb
A knack for making plants grow well, as in Just look at Louise's plants—she really has a green thumb. This term presumably alludes to the stained fingers of an avid gardener. [ First half of 1900s ]