Oklahoma Redbud
Old Gold Pfitzer
Oleander
Olive, Edible Olive
Orange Crush Daylily
Orange or Brown Sedge
Orchid or Purple Rockrose
Oregon Ash
Oregon Grape
Oriental Arborvitae
Pacific Coast Irises
Pacific Mist Manzanita
Pacific Sunset Flannel Bush
Pacific Wax Myrtle
Palace Purple Coral Bells
Pandora's Box Daylily
Paprika Fonos Bearded Iris
Parrasana Agave, Cabbage Head
Passion Vine
Patriot TM Lantana Classic-Passion