Plant Growing Guides

Opuntia Ellisiana

Opuntia ellisiana

Indian Fig Prickly Pear

Opuntia ficus-indica

Opuntia (High Altitude Species)

Opuntia spp. (alpine/montane varieties)

Opuntia megacantha

Opuntia megacantha

Orange Beauty

Calibrachoa × hybrida 'Orange Beauty'

Orange Bedder

Impatiens walleriana (hybrid cultivar)

Orange Bottlebrush Ginger

Zingiber spectabile

Orange Bouquet

Asclepias tuberosa

Orange Calendula

Calendula officinalis

Orange Flamingo

Psittacanthus robustus or Aeschynanthus pulcher var.

Orange Flowering Maple

Abutilon aurantiacum

Orange Glow

Asclepias tuberosa

Orange Hawkweed

Hieracium aurantiacum

Orange Hibiscus

Hibiscus rosa-sinensis

Orange Impression

Tulipa × gesneriana 'Orange Impression'

Orange Ixora

Ixora coccinea

Orange King

Calendula officinalis 'Orange King'

Orange Marmalade Hosta

Hosta 'Orange Marmalade'

Orange Queen

Asclepias tuberosa

Orange Queen Heather

Erica cinerea 'Orange Queen'

Orange Rocket

Asclepias tuberosa 'Orange Rocket'

Orange Star

Ornithogalum dubium

Orange Sun

Heliopsis helianthoides var. scabra 'Orange Sun'

Orbit Rose

Rosa × hybrida 'Orbit'

Orchid

Orchidaceae (family); varies by genus (e.g., Phalaenopsis, Cattleya, Dendrobium)

Orchid Cactus

Selenicereus anthonyanus

Orchid companion ferns

Polypodium species, Platycerium species, and related fern genera

Orchid Companion Plants

Various species (Orchidaceae family companions)

Dendrobium Orchid

Dendrobium spp.

Orchid Frost

Rhaphidophora tetrasperma 'Orchid Frost'

Oncidium Orchid

Oncidium spp.

Lady's Slipper Orchid

Paphiopedilum

Hawaiian Forest Orchid

Dendrobium orchids (native Hawaiian species)

Orchid (Warm-Growing Species)

Orchidaceae family (various genera)

Oregon Evergreen

Rubus laciniatus

Oregon Grape

Mahonia aquifolium

Oregon Grape Holly

Mahonia aquifolium

Oreocereus

Oreocereus (genus)

Old Man of the Andes

Oreocereus leucotrichus

Organ Pipe

Stenocereus thurberi

Oriental Breeze

Chrysanthemum morifolium 'Oriental Breeze'

Oriental Hybrid Lily 'Casa Blanca'

Lilium 'Casa Blanca'

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