A vine forms leafy enclosures around developing fruit that can be up to 5°C warmer than areas around unprotected fruit
Source:
https://www.newscientist.com/article/2256302-vine-grows-its-own-greenhouses-to-help-fruit-develop-in-autumn/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home