Plant Growing Guides

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'

Ochlockonee Blueberry

Vaccinium ashei

October Daphne Sedum

Sedum sieboldii 'October Daphne'

Oculatus Basil

Ocimum basilicum 'Oculatus'

Sweet Osmanthus

Osmanthus fragrans var. odoratissima

Common Basil

Ocimum basilicum

Oklahoma Blaze

Rosa 'Oklahoma Blaze'

Oklahoma Rose

Rosa 'Oklahoma'

Old Blush

Rosa × odorata 'Pallida'

Old Gold

Juniperus x media 'Old Gold'

Oleander

Nerium oleander

Oleander 'Pink Petite'

Nerium oleander 'Pink Petite'

Oleander Variegata

Nerium oleander 'Variegata'

Daisy Bush

Olearia

Tree Daisy

Olearia arborescens

Henry Travers Daisy Bush

Olearia × haastii 'Henry Travers'

Holly-leaf Olearia

Olearia macrodonta

Olearia microdisca

Olearia microdisca

Daisy Bush

Olearia paniculata

Dusty Daisy Bush

Olearia phlogopappa

Olearia stellulata

Olearia stellulata

Olga Mezitt

Rhododendron 'Olga Mezitt'

O'Neal Blueberry

Vaccinium corymbosum 'O'Neal'

O'Neal Rabbiteye Blueberry

Vaccinium ashei 'O'Neal'

Opal Basil

Ocimum basilicum var. purpurascens

Opal Basil

Ocimum basilicum 'Opal'

Optima Basil

Ocimum basilicum 'Optima'

Opuntia (High Altitude Species)

Opuntia spp. (alpine/montane varieties)

Orange Mint

Mentha × piperita var. citrata

Orange Queen Heather

Erica cinerea 'Orange Queen'

Oregano

Origanum vulgare

Oregano and Marjoram

Origanum vulgare (oregano) and Origanum majorana (marjoram)

Oregano and Marjoram

Origanum vulgare (Oregano) and Origanum majorana (Marjoram)

Oregano Sedum

Sedum oreganum

Oregon Evergreen

Rubus laciniatus

Oregon Grape

Mahonia aquifolium

Oregon Grape Holly

Mahonia aquifolium

Oriental Limelight Hydrangea

Hydrangea paniculata 'Summer Crush'

Orion Blueberry

Vaccinium corymbosum 'Orion'

Ornamental Evergreens

Various species (e.g., Ilex, Taxus, Buxus, Chamaecyparis)

Ornamental Holly

Ilex spp.

Ornamental Juniper Blue Star

Juniperus squamata 'Blue Star'

Ornamental Juniper Gold Coast

Juniperus horizontalis 'Gold Coast'

Ornamental Juniper

Juniperus spp.