Plant Growing Guides

Oncidium Splendid Tiger

Oncidium Splendid Tiger

Oncidium Sweet Sugar

Oncidium Sweet Sugar (hybrid cultivar)

Tiger Oncidium

Oncidium tigrinum

Oncidium Tiny

Oncidium × Tiny (hybrid)

Oncidium Tiny Scent

Oncidium Tiny Scent

Oncidium 'Tiny Tigers'

Oncidium × 'Tiny Tigers'

Oncidium Tiny Tot

Oncidium Tiny Tot (hybrid cultivar)

Oncidium Twinkle

Oncidium cheirophorum hybrid 'Twinkle'

Dancing Lady Orchid

Oncidium varicosum

Oncidium 'Vivace'

Oncidium 'Vivace'

Oncidium 'Volcano Queen'

Oncidium 'Volcano Queen'

Oncocyclus Iris

Iris oncocyclus

On Parade

Dahlia × hybrida 'On Parade'

Opening Night Petunia

Petunia × hybrida 'Opening Night'

Alpine Bee Orchid

Ophrys alpina

Opium Poppy Picotee

Papaver somniferum 'Picotee'

Opium Poppy White Cloud

Papaver somniferum 'White Cloud'

Oppenheimiana Cactus

Rebutia oppenheimiana

Optimara Freya

Saintpaulia ionantha 'Optimara Freya'

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 Glow

Asclepias tuberosa

Orange Hawkweed

Hieracium aurantiacum

Orange Impression

Tulipa × gesneriana 'Orange Impression'

Orange King

Calendula officinalis 'Orange King'

Orange Marmalade Hosta

Hosta 'Orange Marmalade'

Orange Queen

Asclepias tuberosa

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)

Old Man of the Andes

Oreocereus leucotrichus

Oriental Breeze

Chrysanthemum morifolium 'Oriental Breeze'

Oriental Hybrid Lily 'Casa Blanca'

Lilium 'Casa Blanca'