So can be separated from transplanted lobelias (8)
I believe the answer is:
isolable
'so can be separated' is the definition.
I can't tell whether this defines the answer.
'transplanted lobelias' is the wordplay.
'transplanted' indicates an anagram.
'lobelias' anagrammed gives 'ISOLABLE'.
'from' is the link.
Can you help me to learn more?
(Other definitions for isolable that I've seen before include "may be cut off" , "worth picking out" .)