Plant Growing Guides

Oak

Quercus species

Oak Fern

Gymnocarpium dryopteris

Oakington Blue Eyes

Veronica chamaedrys subsp. chamaedrys

Oak Leaf Lettuce

Lactuca sativa var. crispa

Oakleaf Candytuft

Iberis sempervirens

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

Oakleaf Lettuce Green Oakleaf

Lactuca sativa var. crispa

Oak Park Blue Phlox

Phlox divaricata subsp. laphamii 'Oak Park Blue'

Oba

Hyptis suaveolens

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

Odorata White Water Lily

Nymphaea odorata var. alba

Sweet Osmanthus

Osmanthus fragrans var. odoratissima

Evening Primrose

Oenothera biennis

Ogo

Gracilaria parvispora

Ogon

Sedum japonicum 'Ogon'

Oha wai

Clermontia arborescens

Ohia

Metrosideros polymorpha

Ohia Lehua

Metrosideros polymorpha

Ohia Palai

Metrosideros polymorpha

Ohi'a Wai

Syzygium sandwicense

Oilseed Radish

Raphanus sativus var. oleifer

Okinawan Amaranth

Amaranthus tricolor

Okinawan Spinach

Alternanthera sissoo

Oklahoma Dwarf Pansy

Viola × wittrockiana 'Oklahoma Dwarf'

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'