Globular, solitary plant to 5″d. with thick taproot; spiral leaves. Collected to near extinction, it is found in limestone soils in the Chihuahuan Desert.
Water
Ochagavia litoralis
Terrestrial Bromeliad
Slow growing grey-green rosette with strongly toothed leaves and pink flowers in summer. Looks best in full sun. Great in containers.
Oenothera “Siskiyou”
O. berlanderi “Siskiyou”
Evergreen Perennial
Huge masses of light pink flowers spring through late summer that open in the late afternoon and fade by morning.
Oenothera caespitosa
Evergreen Perennial
Perennial occurs throughout the Western US, especially above 4500 feet. Huge masses of white flowers spring through late summer that open in the afternoon and fade by morning.
Oenothera speciosa
Evergreen Perennial
Perennial occurs throughout the Western US. Huge masses of rose pink flowers spring through late summer that open in the afternoon and fade by morning.
Olea “Little Ollie”
O. europaea “Little Ollie”
Evergreen tree
Dwarf non-fruiting olive, multi-stemmed, with dark green leaves. Excellent for hedges and marine exposures.
Olea “Manzanillo”
O. europaea “Manzanillo”
Evergreen tree
Cultivated for edible fruit. The epitome of a Mediterranean climate plant – loves the San Francisco Bay Area. Picturesque shade tree with grey leaves.
Olea “Montra”
O. europaea “Montra”
Evergreen tree
Bushy multi-stemmed small tree. Fruitless. Closely spaced grey-green leaves. Great for small yards. The epitome of a Mediterranean climate plant for the Bay Area.
Olea “Skylark”
O. europaea “Skylark”
Evergreen tree
Compact, multi-trunked small tree. Small fruit some years. Closely spaced grey-green leaves. Great for small yards. The epitome of a Mediterranean climate plant for the Bay Area.
Olea “Wilsonii”
O. europaea “Wilsonii”
Evergreen tree
Cultivated to be fruitless. The epitome of a Mediterranean climate plant – loves the San francisco Bay Area. Picturesque shade tree with grey leaves, and no fruit dropping – “a clean plant.”
Olea europaea ssp. africana
Evergreen tree
Pea-sized black fruit. Picturesque shade tree with glossy dark green leaves, brown on the undersides.
Olneya tesota
Slow-growing, thorny, deciduous tree with swollen trunk/caudex
Operculicarya decaryi
Succulent bonsai tree in the Cashew Family (Anacardiaceae) with thickened roots that can be further exposed as the plant grows. Deciduous. Slow growing, no frost. Small pinnate leaves are a little bit larger and greener in shade; Tiny and deep red in full sun.
Ophiopogon “Black Beard”
O. planiscapus “Black Beard”
Evergreen Lily
Slow growing, tight clumps of arching silky black grass-like blades. 14″ bloom spikes with white flowers.
Ophiopogon “Nigrescens”
O. planiscapus “Nigrescens”
Evergreen Lily
Slow growing, tight clumps of thin, arching deep purple-black grass-like blades. Bloom spikes with white flowers from summer to fall.
Ophiopogon japonicus
Evergreen Lily
Fast growing, tight clumps of thin, arching deep green grass-like blades. 12″ bloom spikes with lavender flowers.
Opuntia “Baby Rita”
Small pads, will grow 3 feet tall. Very spiny pads turn purple in winter.
Opuntia “Big Sky”
O. engelmanii “Big Sky”
Large brown spines, 8-10″ pads. Will grow 6 to 8 feet tall. A robust and large selection.
Opuntia “Desert Gem”
O. rufida “Desert Gem”
Small prickly pear with lots of glochids to 10″ w/orange flowers
Opuntia “Fiesta”
Fast growing to 2ft, hot pink flowers. Covered in long white 4″ spines that glow silver when backlit. Cold Hardy.
Opuntia “Old Mexico”
Large, cultivated variety with yellow flowers. Edible pads.
Opuntia “Orange Tang”
Green pads spread out to 4ft wide in a low growth pattern. Abundant orange flowers in spring. Moderately slow grower.
Opuntia “Party Favor”
O. erinacea v. utahensis hybrid.
Low-spine. Spring bloom flush in crimson pink flowers, and sometimes winter.
Opuntia “Pink Frost”
Lime green pads, light rose-pink flowers. Low-spine, low-growing, cold hardy.
Opuntia “Sparkles”
O. polyacantha var. hystricina, O. utahensis
Low growing, spreading prickly-pear cactus. Purple spots develop in cold weather. Brilliant carmine-pink flowers spring through summer.
Opuntia “Sunburst”
Narrow variegated pads. Keep dry in winter. Great for indoor in a sunny window.
Opuntia basilaris
Classic blue cactus from the Mojave and Sonoran Deserts. Very low water, can handle high heat and winter cold if dry. Pink flowers. Loads of small glochids, very few spines. Will get 2 to 3 feet tall and spread 6 to 8 feet wide over time. Pads were used medicinally.
Opuntia basilaris v. caudata
Compact variety. Smaller pads than the species, often heart-shaped. Will stay as low as 1 foot tall, but will spread 4 feet wide.
Opuntia basilaris x santa-rita
Thin purple pads, red blooms; Glochids, no central spines. Low growing, sprawling
Opuntia cochenillifera
Nopalea cochenillifera
Prickly pear to 10′; low-spine, delicious edible pads