1.  WALKING STICKS        
2.  THEY ARE ALL CARNIVOROUS PLANTS.    
3   WISLEY     
4.  THE SAVOY   
5.  VIOLA.   
6.  NORTH AMERICA.     
7.  LEYLAND   
8.  BRIGHT RED
9.  DECIMUS  BARTON.
10. YEW.  
11. SPINDLE TREE. 
12  NO ...THE ROMANS  brought it to England to add fragrance to bath water.    
13. GIANT HOGWEED .                                        
14. RUDYARD KIPLING.       
15. FORGET -ME -NOT