Go, grab bananas around wide planting area (4,3)

I believe the answer is:
grow bag
'planting area' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'go grab bananas around wide' is the wordplay.
'bananas' indicates anagramming the letters (informal term for mad).
'around' means one lot of letters goes inside another.
'wide' becomes 'w' (abbreviation e.g. in cricket).
'go'+'grab'='gograb'
'gograb' anagrammed gives 'grobag'.
'grobag' placed around 'w' is 'GROW-BAG'.
Can you help me to learn more?
(Other definitions for grow bag that I've seen before include "Compost container for planting" , "Compost container for tomatoes plants" , "Plastic sack containing soil and nutrient used as plant bed" .)
