Plant Growing Guides

Oakington Blue Eyes

Veronica chamaedrys subsp. chamaedrys

Oakleaf Candytuft

Iberis sempervirens

Oak Park Blue Phlox

Phlox divaricata subsp. laphamii 'Oak Park Blue'

Obedient Plant

Physostegia virginiana

Oblong-leaved Sundew

Drosera intermedia

Oblong Sundew

Drosera intermedia

October Skies

Aster novi-belgii 'October Skies'

Oculatus Basil

Ocimum basilicum 'Oculatus'

Odorata

Reseda odorata

Odorata Nana Water Lily

Nymphaea odorata var. minor

Odorata Pink Water Lily

Nymphaea odorata var. rosea

Odorata Pygmaea Water Lily

Nymphaea odorata var. pygmaea

Odorata Red Water Lily

Nymphaea odorata var. rubra

Odorata Sulphurea Water Lily

Nymphaea odorata sulphurea

Odorata White Water Lily

Nymphaea odorata var. alba

Evening Primrose

Oenothera biennis

Common Basil

Ocimum basilicum

Oklahoma Dwarf Pansy

Viola × wittrockiana 'Oklahoma Dwarf'

Oklahoma Pink

Dianthus chinensis × barbatus

Oklahoma Scarlet

Rosa oklahoma

Old Fashioned Bleeding Heart

Dicentra spectabilis

Oncocyclus Iris

Iris oncocyclus

Opal Basil

Ocimum basilicum var. purpurascens

Opal Basil

Ocimum basilicum 'Opal'

Opening Night Petunia

Petunia × hybrida 'Opening Night'

Alpine Bee Orchid

Ophrys alpina

Opium Poppy Picotee

Papaver somniferum 'Picotee'

Opium Poppy White Cloud

Papaver somniferum 'White Cloud'

Optima Basil

Ocimum basilicum 'Optima'

Orange Beauty

Calibrachoa × hybrida 'Orange Beauty'

Orange Bouquet

Asclepias tuberosa

Orange Calendula

Calendula officinalis

Orange Glow

Asclepias tuberosa

Orange Hawkweed

Hieracium aurantiacum

Orange Impression

Tulipa × gesneriana 'Orange Impression'

Orange King

Calendula officinalis 'Orange King'

Orange Marmalade Hosta

Hosta 'Orange Marmalade'

Orange Mint

Mentha × piperita var. citrata

Orange Queen

Asclepias tuberosa

Orange Rocket

Asclepias tuberosa 'Orange Rocket'

Orange Sun

Heliopsis helianthoides var. scabra 'Orange Sun'

Orbit Rose

Rosa × hybrida 'Orbit'

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

Oriental Breeze

Chrysanthemum morifolium 'Oriental Breeze'

Oriental Hybrid Lily 'Casa Blanca'

Lilium 'Casa Blanca'