Columbia subject headings:
Gardens--England--Cornwall (County)--History.
Heligan Gardens Limited.
Harvard subject headings:
Gardens--England--Cornwall (County)--History.
Heligan Gardens Limited.
Historic gardens--England--Cornwall (County)--History.
Princeton subject headings:
Gardens--England--Cornwall (County)--Conservation and restoration.
Gardens--England--Cornwall (County)--History.
Heligan Garden (England)