Plant with sign of new life daughter and I found in open country (8)
I believe the answer is:
buddleia
'plant' is the definition.
'sign of new life daughter and i found in open country' is the wordplay.
'sign of new life' becomes 'bud' (sign of plant growth).
'daughter' becomes 'd' (genealogical abbreviation).
'and' says to put letters next to each other.
'found in' means one lot of letters goes inside another.
'open country' becomes 'lea' (I've seen this before).
'i' inserted into 'lea' is 'leia'.
'bud'+'d'+'leia'='BUDDLEIA'
'with' acts as a link.
(Other definitions for buddleia that I've seen before include "flowering plant" , "Small coin of Mexico, Brazil" , "Ornamental plant" , "Common shrub attractive to butterflies" , "Butterfly bush" .)