9 th ▁and ▁early ▁ 2 0 th ▁century ▁expl or ers , ▁who ▁brought ▁back ▁plants ▁for ▁which ▁the ▁garden ▁is ▁now ▁world - f am ous , ▁including ▁four ▁National ▁Col lections , ▁of ▁Rh od od end ron ▁for rest ii , ▁Magn olia , ▁E uc ry phia ▁and ▁Em both rium ▁species . ▁Today ▁the ▁garden ▁also ▁has ▁twenty ▁two ▁Champion ▁Tre es , ▁noted ▁for ▁their ▁age , ▁height ▁and ▁h ort icult ural ▁mer it . ▁ ▁Henry ▁P och in ' s ▁legacy ▁to ▁Bod nant ▁was ▁plant ing ▁the ▁garden ' s ▁great ▁con if ers ; ▁the ▁ced ars ▁on ▁the ▁L ily ▁Terra ce ▁( from ▁Africa ▁and ▁Middle ▁East ) ▁and ▁the ▁P inet um ▁in ▁the ▁D ell ▁which ▁includes ▁American ▁and ▁Asian ▁con if ers ▁including ▁Pseud ots uga ▁men z ies ii ▁( D oug las ▁Fir ) ▁P inus ▁radi ata , ▁ ▁Sci ad op ity s ▁vert ic ella ▁( J apan ese ▁Um bre lla ▁P ine ), ▁Ch ama ec y par is ▁pis if era ▁( J apan ese ▁false ▁cy press ▁and ▁ ▁Se qu oi ad end ron ▁gig ante um ▁( Gi ant ▁Red wood ). ▁ ▁The ▁next ▁phase ▁of ▁plant ▁hunting ▁was ▁under ▁P och in ' s ▁grand son ▁Henry ▁Mc L aren , ▁ 2 nd ▁Lord ▁Aber con way ▁who ▁spons ored ▁exped itions ▁from ▁the ▁Edward ian ▁period ▁which ▁brought ▁in ▁large ▁numbers