Kev saib xyuas thiab muab cov khoom noj kom zoo rau rhododendrons yog qhov tseem ceeb rau lawv txoj kev noj qab haus huv thiab paj. Lub caij nplooj ntoos hlav yog lub sijhawm tseem ceeb rau fertilizing cov nroj tsuag zoo nkauj no, thiab nrog lub tswv yim zoo, lawv tuaj yeem tawg tag nrho lawv lub yeeb koob. Thaum muaj cov khoom tshwj xeeb rhododendron chiv nyob rau hauv kev ua lag luam, nws muaj peev xwm siv ntau hom chiv kom tau raws li lawv cov khoom noj khoom haus.
Cov tshuaj chiv xws li nyuj quav lossis quav qaib pelleted tuaj yeem yog lwm txoj hauv kev los muab cov as-ham tsim nyog rau rhododendrons nyob rau lub caij nplooj ntoo hlav. Txawm li cas los xij, nws yog ib qho tseem ceeb kom tsis txhob muaj cov chiv uas muaj txiv qaub, xws li Algomin, vim tias cov no tuaj yeem nce pH tus nqi hauv cov av, uas tsis muaj txiaj ntsig zoo rau rhododendrons, uas zoo tshaj plaws nyob rau hauv ib puag ncig acidic. Hloov chaw, koj tuaj yeem xav txog kev ntxiv lub txaj rhododendron nrog cov ntaub ntawv xws li nplooj ntoo qhib, ntoo thuv koob, lossis bark mulch txhua txhua xyoo kom tswj cov av acidic uas cov nroj tsuag no vam meej.