Plant Growing Guides

Oak

Quercus species

Oak Fern

Gymnocarpium dryopteris

Oakleaf Hydrangea

Hydrangea quercifolia

Oakleaf Hydrangea 'Alice'

Hydrangea quercifolia 'Alice'

Oakleaf Hydrangea 'Munchkin'

Hydrangea quercifolia 'Munchkin'

Oakleaf Hydrangea Pee Wee

Hydrangea quercifolia 'Pee Wee'

Oakleaf Hydrangea Snowflake

Hydrangea quercifolia 'Snowflake'

Oakleaf Lettuce

Lactuca sativa var. crispa

Oak Park Blue Phlox

Phlox divaricata subsp. laphamii 'Oak Park Blue'

Oblong-leaved Sundew

Drosera intermedia

October Daphne

Sedum sieboldii

October Daphne Sedum

Sedum sieboldii 'October Daphne'

Odontioda Cracens

Odontioda Cracens

Odontoglossum Crispum Hybrid Orchid

Odontoglossum crispum × (hybrid parentage)

Odontoglossum × Wilsonara

Odontoglossum × Wilsonara

Odorata

Reseda odorata

Sweet Osmanthus

Osmanthus fragrans var. odoratissima

Oha wai

Clermontia arborescens

Ohia

Metrosideros polymorpha

Ohia Lehua

Metrosideros polymorpha

Ohia Palai

Metrosideros polymorpha

Ohi'a Wai

Syzygium sandwicense

Okinawan Amaranth

Amaranthus tricolor

Okinawan Spinach

Alternanthera sissoo

Old Fashioned Bleeding Heart

Dicentra spectabilis

Oleander 'Sister Agnes'

Nerium oleander 'Sister Agnes'

Oleander Variegata

Nerium oleander 'Variegata'

Daisy Bush

Olearia

Holly-leaf Olearia

Olearia macrodonta

Olearia microdisca

Olearia microdisca

Daisy Bush

Olearia paniculata

Olearia stellulata

Olearia stellulata

Olga Mezitt

Rhododendron 'Olga Mezitt'

Olive Ball Sedum

Sedum burrito var. burrito or Sedum 'Olive Ball'

Excavatum Orchid

Oncidium excavatum

Oncidium 'Goldrush Sunset'

Oncidium × 'Goldrush Sunset'

O'Neal Rabbiteye Blueberry

Vaccinium ashei 'O'Neal'

Ong Choy

Ipomoea aquatica

Japanese Mondo Grass

Ophiopogon japonicus

Alpine Bee Orchid

Ophrys alpina

Oppenheimiana Cactus

Rebutia oppenheimiana

Orach

Atriplex hortensis

Orach Magenta Magic

Atriplex hortensis 'Magenta Magic'

Orange Calendula

Calendula officinalis

Orange Dream Japanese Maple

Acer palmatum 'Orange Dream'

Orange Marmalade Hosta

Hosta 'Orange Marmalade'

Orange Mint

Mentha × piperita var. citrata

Orchard grass

Dactylis glomerata