Oenothera fraseri ( Evening Primrose )

Erect perennial or biennial with racemes of cup shaped yellow flowers. Leaves are broader and smoother with a red tint. These bright yellow primroses open in the day. Best planted in spring among other full sun plants. You should divide […]

Oenothera deltoides ( Desert Evening Primrose )

O.deltoides is an upright annual or perennial with green leaves, lance-shaped to egg-shaped. In summer, single, bowl-shaped white primroses open in the morning then turn to pink at sunset. Best planted in spring among other full sun plants. You should […]

Oenothera biennis ( Evening Primrose )

O. biennis is an upright annual or sometimes a biennial, producing fragrant pale yellow primroses turning darker in the evening. Large rosettes, slightly sticky are lance shaped to oblong. Best planted in spring among other full sun plants. You should […]

Oenothera berlandieri ( Evening Primrose )

These pale pink primroses open in the evening. Best planted in spring among other full sun plants. You should divide the clumps every 3 years to encourage them to flower. Evening Primroses are excellent perennials for weekend gardeners, since they […]

Oenothera acaulis ( Evening Primrose )

Whitish-pink primroses in trumpets of 2 to 5, open in the evening, and turn pink the next day. Best planted in spring among other full sun plants. You should divide the clumps every 3 years to encourage them to flower […]

Odontonia ( Olga Orchid )

Epiphytic orchid with narrow leaves 12 inches long, and ovoid pseudobulbs. Tall racemese produce flowers 3 inches across in winter. Grow with epiphytic orchid potting mix (using fine-grade bark) in small containers. Requires filtered light and high humidity in summer, […]

Odontoglossum stellatum ( Odontoglossum Orchid )

An evergreen, epiphytic orchid, with single, 6 inch leaves growing from oblong pseudobulbs. The flowers appear on pendent racemes, from winter to spring. Should be grown in containers that restrict the roots, with fine-grade epiphytic orchid potting mix, or can […]

Odontoglossum rossii ( Odontoglossum Orchid )

An evergreen, epiphytic orchid, with single, linear leaves to 8 inches, growing from ovoid, compressed pseudobulbs. The flowers can be white, pink or yellow, and appear from winter to spring. Should be grown in containers that restrict the roots, with […]

Odontoglossum harryanum ( Odontoglossum Orchid )

Epiphytic orchid with oblong leaves to 18 inches long, and slender pseudobulbs. Tall racemes to 4 feet produce the 3 inch across flowers in wnter. Grow with epiphytic orchid potting mix (using fine-grade bark) in small containers. Requires filtered light […]

Odontoglossum crispum ( Odontoglossum Orchid )

Epiphytic orchid with linear leaves, to 16 inches and ovoid pseudobulbs. Long racemes to 20 inches, produce flowers in winter. Grow with epiphytic orchid potting mix (using fine-grade bark) in small containers. Requires filtered light and high humidity in summer, […]