Gardeners often lament that they feel intimidated about pronouncing the Latin names of plants. Keep in mind that pronunciation in any language is not always a hard-and-fast matter. If you can’t remember the preferred pronunciation of a plant name, just do your best—and say it with conviction!
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Ocimum
(OH-see-mum)
Ocimum basilicum
(OH-see-mum bah-SIL-ih-kum)
Ocimum X citriodorum
(OH-sih-mum ex sih-tree-oh-DOOR-um)
Oenothera berlandieri
(ee-NOTH-er-ah ber-lan-dee-AIR-eye)
Oenothera fremontii
(ee-NOTH-er-ah free-MON-tee-eye)
Oenothera fruticosa
(ee-NOTH-er-ah fru-tih-KOE-sah)
Oenothera macrocarpa
(ee-NOTH-er-ah mak-roe-KAR-pah)
Oenothera speciosa
(ee-NOTH-er-ah spee-see-OH-sah)
Olea
(OH-lee-ah)
Olea europaea
(OH-lee-ah yur-oh-PAY-ah)
Omphalodes cappadocica
(om-fah-LO-deez kap-ah-DOE-sih-kah)
Onopordum acanthium
(on-oh-POR-dum ah-KAN-thee-um)
Opercularia aspera
(oh-per-kew-LAR-ee-ah ASS-per-ah)
Ophiopogon jaburan
(oh-fee-oh-POE-gon jah-BOOR-an)
Ophiopogon japonicus
(oh-fee-oh-POE-gon jah-PON-ih-kus)
Ophiopogon planiscapus
(oh-fee-oh-POE-gon plan-iss-KAP-us)
Oplismenus hirtellus
(op-liss-MEE-nus her-TEL-lus)
Opuntia
(oh-PUN-tee-ah)
Opuntia compressa
(oh-PUN-tee-ah kom-PRESS-ah)
Origanum
(oh-RIG-an-um)
Origanum dictamnus
(oh-RIG-an-um dik-TAM-nus)
Origanum laevigatum
(oh-RIG-an-um lay-vih-GAY-tum)
Origanum libanoticum
(oh-RIG-an-um lib-an-OT-ih-kum)
Origanum onites
(oh-RIG-an-um oh-NEE-teez)
Origanum rotundifolium
(oh-RIG-an-um roe-tun-dih-FOE-lee-um)
Origanum vulgare
(oh-RIG-an-um vul-GAR-ay)
Ornithogalum umbellatum
or-nith-oh-GAL-lum um-bell-AY-tum)
Oroxylum indicum
(or-OKS-il-um IN-dih-kum)
Osmanthus heterophyllus
(oz-MAN-thus het-er-oh-FY-lus)
Osmunda
(oz-MUN-dah)
Osmunda cinnamomea
(oz-MUN-dah sin-ah-MO-mee-ah)
Osmunda claytoniana
(oz-MUN-dah klay-tone-ee-AY-nah)
Osmunda regalis
(oz-MUN-dah ree-GAL-iss)
Osteospermum
(oss-tee-oh-SPERM-um)
Ostrya virginiana
(OSS-tree-ah ver-jin-ee-AY-nah)
Othonna
(oh-THON-ah)