Plant Growing Guides

Oakington Blue Eyes

Veronica chamaedrys subsp. chamaedrys

Oakleaf Candytuft

Iberis sempervirens

Oak Park Blue Phlox

Phlox divaricata subsp. laphamii 'Oak Park Blue'

Obedient Plant

Physostegia virginiana

Oblong-leaved Sundew

Drosera intermedia

Oblong Sundew

Drosera intermedia

October Skies

Aster novi-belgii 'October Skies'

Odontioda Cracens

Odontioda Cracens

Odontoglossum Crispum Hybrid Orchid

Odontoglossum crispum × (hybrid parentage)

Odontoglossum × Wilsonara

Odontoglossum × Wilsonara

Odorata

Reseda odorata

Odorata White Water Lily

Nymphaea odorata var. alba

Evening Primrose

Oenothera biennis

Oklahoma Dwarf Pansy

Viola × wittrockiana 'Oklahoma Dwarf'

Excavatum Orchid

Oncidium excavatum

Oncidium 'Goldrush Sunset'

Oncidium × 'Goldrush Sunset'

Alpine Bee Orchid

Ophrys alpina

Oppenheimiana Cactus

Rebutia oppenheimiana

Orange Bedder

Impatiens walleriana (hybrid cultivar)

Orange Bottlebrush Ginger

Zingiber spectabile

Orange Calendula

Calendula officinalis

Orange King

Calendula officinalis 'Orange King'

Orchid companion ferns

Polypodium species, Platycerium species, and related fern genera

Hawaiian Forest Orchid

Dendrobium orchids (native Hawaiian species)

Old Man of the Andes

Oreocereus leucotrichus

Oriental Hybrid Lily 'Mona Lisa'

Lilium 'Mona Lisa'

Oriental Hybrid Lily Sorbonne

Lilium 'Sorbonne'

Ornamental Flowering Perennials

Multiple genera and species

Ornamental Flowering Plants

Various species (Angiosperms with decorative flowers)

Ornamental Foliage Plants

Various genera and species

Ornamental Ginger

Alpinia, Hedychium, Curcuma, and related genera

Ornamental Plants (General Category)

Various species

Ornamental Sage

Salvia nemorosa (Meadow Sage) and related ornamental Salvia species

Ornamental Sedum

Sedum spp.

Ornamental Succulents

Various species (e.g., Sempervivum, Sedum, Echeveria, Aloe)

Star of Bethlehem

Ornithogalum umbellatum

Arabian Star of Bethlehem

Ornithogalum arabicum

Sun Star, Yellow Star of Bethlehem

Ornithogalum dubium 'Yellow'

Drooping Star of Bethlehem

Ornithogalum nutans

Pyrenean Star-of-Bethlehem

Ornithogalum pyrenaicum

Chincherinchee

Ornithogalum thyrsoides

Chinese Dunce Cap

Orostachys aggregata

Japanese Dunce Cap

Orostachys japonica

Ostrich Plume Mixed Colors

Celosia cristata plumosa

Ostrich Plume Pink

Celosia cristata var. plumosa

Aechmea (Urn Plant, Bromeliad)

Aechmea spp.

Alpine Species (General)

Various species in alpine environments

Bee-Friendly Flowers (Mixed Collection)

Multiple species