Kutsirira ndi imodzi mwazinthu zofunika kuziwongolera kwa mbewu za bonsai. Kuthirira kumawoneka kosavuta, koma sizophweka kuthirira bwino. Kutsirira kuyenera kuchitika molingana ndi mtundu wazomera, kusintha kwa nyengo, nyengo yamvula, nthawi ya maluwa, nthawi yamvula ya chomera. Kuzindikira nthawi yothirira ndi kuchuluka ndikofunikira kwambiri kuti mbewu za mbewu. Imfa ya mbewu zina za bonsai zimagwirizana mwachindunji kuthirira kosayenera.

Kuphatikiza pa kupereka madzi ndi michere kwa mbewu zokhala ndi zophika, nthaka paphika zimasunganso mbewuzo. Nthaka ikakhala ndi chinyezi chokwanira, nthaka imakulitsa, kufinya mpweya womwe umapezeka pakati pa tinthu, ndikupangitsa kusowa kwa mpweya mu mphika; Nthaka ikauma kapena yowuma, nthaka imasungunuka, voliyumu imakhala yaying'ono, ndipo mipata pakati pa tinthu towonekeranso. Mapaziwo ali ndi mpweya.

Momwe dothi limasinthira pakati louma komanso lonyowa, mpweya mumphika umazungulira mosalekeza, kuloleza mbewu kuti mupume bwino. Pambuyo kuthirira chilichonse, mizu ya mbewuyo imatha kulekerera kusowa kwa mpweya mumphika mkati mwa nthawi yochepa. Komabe, ngati dothi limanyowa kwambiri kwa nthawi yayitali, zomwe zimapangitsa kuti mpweya ukolose ndi matenda ena; Ngati dothi lili louma kwa nthawi yayitali, ngakhale kuti pali mpweya wokwanira m'miphika, mbewu sizingatenge madzi nthawi yayitali, zomwe zimawononganso kukula kwa mbewu ndipo zitha kuwapangitsa kuti afe. Chifukwa chake, mukathirira mbewu za Bonsoi, mfundo ya "osawathirira ikauma, idzithiritsa bwino" ziyenera kutsatiridwa.

Kuthirira kosakwanira ndi kuthina kwamadzi kokwanira kumapangitsa kuti nthambi zoti zithetse ndi droop, ndipo masamba afota, kutembenukira chikasu, ndikugwa. Pankhani ya mitundu yotsimikizira, singano zidzakhala zofewa ndikuwononga mphamvu zawo komanso mwachidwi. Kuperewera kwamadzi kukakhala koopsa, kotekisi ya nthambi zikamavutitsa ngati goosebumps. Ngati mukukumana ndi izi nthawi yachilimwe, muyenera kusunthira nthawi yomweyo mbewuyo kumalo osakira. Kutentha kwa kutentha kumatsikira, utsi wamasamba koyamba, kenako kuthira madzi pang'ono mumphika, kenako kuthira madziwo pola limodzi ola limodzi.

Zomera zongotuluka kwambiri, musakhale ndi madzi mokwanira, chifukwa chomera chikangopepuka kwambiri, muzu wa cortex wagona ndipo ali pafupi ndi xylem. Ngati madzi ambiri amaperekedwa mwadzidzidzi, mizu imakulitsa chifukwa cha kuchepa kwa madzi mwachangu, zomwe zimapangitsa kuti chomeracho chizikhalapo, ndiye kuti pamafunika kusintha pang'onopang'ono. Pambuyo pa mbewu zoperewera kwambiri ndi madzi zimapezeka pamwambapa, ndibwino kuzisunga pansi pa mthunzi wokhetsedwa kwa masiku angapo, kenako ndikulitseni padzuwa atatha. Komabe, musamafere madzi. Kuphatikiza pa kupangitsa mbewuzo kukhala kokhazikika, kukhudza mtengo ndi mtengo wokongoletsera, kuthirira kwambiri kumathanso kumayambitsanso mizu ndi imfa. Miphika yaying'ono ya bonsai imafunikira dothi lochepa, motero ndikofunikira kwambiri kuwathirira panthawi yoyenera komanso nthawi yoyenera.