The answers are plants whose names refer to royalty or aristocracy :-
1/.Informant is trembling (7,5).2/. Worn by baronet's wife expecting delivery (5,5). 3/.Carl helped rip your flower out (5,6,6).4/.Poinless delay upset Miss Britten (4,4). 5/.Does it provide a drink at Inverary Castle ? (4,2,7,3,5).
Any help gratefully received. Many thanks !!!! P