Plant Growing Guides

Obedient Plant

Physostegia virginiana

Oblonga Olive

Olea europaea 'Oblonga'

Oblong Sundew

Drosera intermedia

October Skies

Aster novi-belgii 'October Skies'

Odontioda Bictoniense

Odontioda bictoniense

Odontoglossum Orchid

Odontoglossum spp.

Odorata Nana Water Lily

Nymphaea odorata var. minor

Oha

Metrosideros polymorpha

Ohe

Tetraplasandra waimeaensis

O'Henry Peach

Prunus persica 'O'Henry'

Ohia Ai

Syzygium malaccense

Okitsu Mandarin

Citrus unshiu

Oklahoma Scarlet

Rosa oklahoma

Olive Arbequina

Olea europaea 'Arbequina'

Kalamata Olive

Olea europaea 'Kalamata'

Olive Koroneiki

Olea europaea 'Koroneiki'

Olive Manzanillo

Olea europaea 'Manzanillo'

Olive Tree, Manzanillo

Olea europaea 'Manzanillo'

Picholine Olive Tree

Olea europaea 'Picholine'

Oncidium Alliance Orchids

Oncidium alliance (genus Oncidium and related genera)

Oncidium Hybrid

Oncidium × hybridum

Opium Poppy Picotee

Papaver somniferum 'Picotee'

Optimara Freya

Saintpaulia ionantha 'Optimara Freya'

Orangada

Citrus × sinensis 'Orangada'

Orange Bottlebrush Ginger

Zingiber spectabile

Orange Citrus

Citrus × sinensis

Orange Hawkweed

Hieracium aurantiacum

Orange Impression

Tulipa × gesneriana 'Orange Impression'

Orange Navel

Citrus × sinensis 'Navel'

Orange Navel Bahianinha

Citrus sinensis 'Bahianinha'

Orange Navel Cara Cara

Citrus × sinensis 'Cara Cara'

Orange Navel Jaffa

Citrus × sinensis 'Jaffa'

Citrus (Oranges and Lemons)

Citrus sinensis (Orange) and Citrus limon (Lemon)

Jaffa Orange Tree

Citrus × sinensis 'Jaffa'

Navel Orange Tree

Citrus × sinensis 'Navel'

Sanguinello Orange

Citrus sinensis 'Sanguinello'

Orchid Cactus

Selenicereus anthonyanus

Dendrobium Orchid

Dendrobium spp.

Oncidium Orchid

Oncidium spp.

Oriental Breeze

Chrysanthemum morifolium 'Oriental Breeze'

Oriental Hybrid Lily 'Mona Lisa'

Lilium 'Mona Lisa'

Oriental Hybrid Lily 'Muscadet'

Lilium 'Muscadet'

Oriental Hybrid Lily 'Siberia'

Lilium 'Siberia'

Oriental Hybrid Lily Sorbonne

Lilium 'Sorbonne'

Oriental Hybrid Lily Stargazer

Lilium 'Stargazer'

Oriental Hybrid Lily

Lilium orientalis hybrids

Orientalis Hybrid Lily 'House of All Hallows'

Lilium × orientalis 'House of All Hallows'

Orientalis Hybrid Lily

Lilium × orientalis