List of perennial plants that start with the letter 'O', such as Oenothera, Onoclea and Oxalis. You'll love these perennial plants so much you'll make an 'O'-face! Enjoy!
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Oenothera fruticosa 'Fireworks'
Item #: 8719
Zones: 3a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Oenothera riparia 'Colleton'
Item #: 17620
Zones: 7a to 9a, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Ophiopogon japonicus 'Gyoku Ryu'
Item #: 551
Zones: 5a to 10b
Dormancy: Evergreen
Height: 3" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Ophiopogon japonicus 'Snow Globe'
Item #: 12977
Zones: 6a to 10b
Dormancy: Evergreen
Height: 2" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per
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Ophiopogon planiscapus 'Kokuryu'
Item #: 721
Zones: 7a to 10b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Opuntia fragilis 'Potato'
Item #: 14256
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 3" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per
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Origanum calcaratum
Item #: 10263
Zones: 7a to 8b, at least
Dormancy: Winter
Height: 15" tall
Culture: Sun
Origin: Crete, Greece
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Osbeckia stellata var. crinita 'Cangshan'
Item #: 16227
Zones: 8a to 10b, at least
Dormancy: Winter
Height: 24" tall
Culture: Sun to Part Sun
Origin: Cambodia, China, Thailand
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Oxalis crassipes 'Cherry Spritzer'
Item #: 12350
Zones: 6a to 9b, at least
Dormancy: Winter
Height: 10" tall
Culture: Part Sun to Light Shade
Origin: Argentina, Brazil
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per
