Oenothera berlandieri 'Siskiyou'
(ee-no-THER-a bur-LAN-dee-er-ee)
Pink Showy Primrose
Pink crepe-paper flowers; spring blooms linger into the summer
Zones: 6-9
Oenothera fruticosa
(ee-no-THER-ah fru-ti-CO-sah)
Sundrops
Bright sunshine-yellow flowers at 1-2' in early summer
Zones: 4-9
Ophiopogon planiscapus 'Nigrescens'
(o-fee-o-PO-gon plan-i-SKAH-pus)
Black Mondo Grass
Slow growing groundcover with truly black foliage
Zones: 6-10
Origanum compactum 'Nana'
(o-ree-GAH-num com-PAC-tum)
Compact Oregano
Tough and aromatic groundcover for dry sunny sites
Zones: 3-8
Origanum laevigatum 'Herrenhausen'
(o-ree-GAH-num lave-eh-GAY-tum)
Ornamental Oregano
Dark red stems, tiny purple flowers, great butterfly plant
Zones: 6-10
Origanum vulgare 'Aureum'
(o-ree-GAH-num vul-GAH-ree)
Golden Oregano
Chartreuse provides a bright spot in the garden
Zones: 3-9
Osmunda cinnamomea
(os-MUND-a sin-a-MOME-ee-ah)
Cinnamon Fern
In spring, spore-bearing fertile fronds look like sticks of cinnamon
Zones: 3-8
Osmunda regalis 'var. spectabilis'
(os-MUND-a re-GAY-lis var. spek-TAB-ill-iss)
Royal Fern
Large dramatic native fern for wet shady spots
Zones: 3-9
Oxalis regnellii 'Triangularis'
(ox-AH-lis reg-NELL-ee-eye)
Purple Wood Sorrel
Zones: 7-10
Oxydendrum arboreum
(ox-ee-DEN-drum ar-bore-REE-um)
Sourwood
Cascading summertime clusters, scarlet fall foliage
Zones: 5-8
