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'

October Daphne Sedum

Sedum sieboldii 'October Daphne'

Oculatus Basil

Ocimum basilicum 'Oculatus'

Common Basil

Ocimum basilicum

Oklahoma Blaze

Rosa 'Oklahoma Blaze'

Oklahoma Rose

Rosa 'Oklahoma'

Old Gold

Juniperus x media 'Old Gold'

Olga Mezitt

Rhododendron 'Olga Mezitt'

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.

Ornamental Shrubs

Various species (Genus-dependent)

Orpine

Sedum telephium

Osmin Purple Basil

Ocimum basilicum 'Osmin Purple'

Oso Easy Rose

Rosa 'Oso Easy'

Oso Easy Cherry

Rosa 'Oso Easy Cherry'

Oso Easy Fragrant Carpet Rose

Rosa 'Oso Easy Fragrant Carpet'

Oso Easy Lemon Zest Rose

Rosa 'Oso Easy Lemon Zest'

Oso Easy Midas Touch

Rosa 'Oso Easy Midas Touch'

Oso Easy Paprika Rose

Rosa 'Oso Easy Paprika'

Oso Easy Peachy Keen Rose

Rosa 'Oso Easy Peachy Keen'

Oso Easy Pink Abundance

Rosa 'Oso Easy Pink Abundance'

Oso Easy Sunny Day Rose

Rosa 'Oso Easy Sunny Day'

Oso Easy Yellow

Rosa 'Oso Easy Yellow'

Osprey Arborvitae

Thuja occidentalis 'Osprey'

Ostrich Feather

Matteuccia struthiopteris

Othello Basil

Ocimum basilicum 'Othello'