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'

Oak Sedge

Carex quercetorum

Oat Grass

Avena sativa

Oat Groats Hulless

Avena sativa var. nuda

Oat Groats Hulless Paul

Avena sativa

Oats

Avena sativa

Common Oats

Avena sativa

Oats (Nurse Crop)

Avena sativa

Oats and Barley

Avena sativa (Oats) / Hordeum vulgare (Barley)

Winter Cereal Rye

Secale cereale

Oberkulmer Spelt

Triticum dicoccum

Ochlockonee Blueberry

Vaccinium ashei

October Daphne Sedum

Sedum sieboldii 'October Daphne'

Sweet Osmanthus

Osmanthus fragrans var. odoratissima

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'

Olney threesquare

Scirpus olneyi

O'Neal Blueberry

Vaccinium corymbosum 'O'Neal'

O'Neal Rabbiteye Blueberry

Vaccinium ashei 'O'Neal'

Japanese Mondo Grass

Ophiopogon japonicus

Opuntia (High Altitude Species)

Opuntia spp. (alpine/montane varieties)

Orange Queen Heather

Erica cinerea 'Orange Queen'

Orchard grass

Dactylis glomerata

Orchardgrass

Dactylis glomerata

Orchardgrass 'Latar'

Dactylis glomerata 'Latar'

Orchard Grass 'Lato'

Dactylis glomerata 'Lato'

Oregon Evergreen

Rubus laciniatus

Oregon Grape

Mahonia aquifolium

Oregon Grape Holly

Mahonia aquifolium

Oriental Limelight Hydrangea

Hydrangea paniculata 'Summer Crush'