Plants That Start with "O"

24 plants in this collection

№ 021
Osmanthus x fortunei 'San Jose' Fortune's tea olive, tall upright evergreen with finely toothed glossy leaves
Fortune's Tea Olive
Osmanthus x fortunei ‘San Jose'Fortune's Tea Olive

Osmanthus x fortunei 'San Jose' is a large, upright member of Fortune's tea olive, the garden hybrid that crosses the false holly, Osmanthus heterophyllus, with the sweet olive, Osmanthus fragrans. Among the fortunei clones, 'San Jose' stands apart for thinner, more finely toothed leaves and a taller, more upright habit, a plant that reaches for height where others spread.

Hardiness
Zones 7–9
Light
Full Sun / Part Shade
Height
20–30 ft.
Spread
10–16 ft.
Bloom
White
Plant type
Shrub
$23.00Currently unavailable
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№ 022
Osmunda regalis, royal fern, with bold arching twice-cut green fronds.
Royal Fern
Osmunda regalisRoyal Fern

Osmunda regalis, the royal fern, is a plant of stature and quiet nobility, at home where the woods remember water and time moves slowly. The genus Osmunda gives its name to an ancient family, the Osmundaceae, sometimes called the flowering ferns, with a fossil lineage that reaches back past the Jurassic; a royal fern in the garden is a living relic of a far older flora. The natural range runs from Nova Scotia to Florida in North America, and on through Europe, Africa, and Asia, making this one of the most widely distributed ferns on earth. Both the common name and the Latin regalis salute the same quality: among the largest and most robust of all North American herbaceous plants, the royal fern reaches four to six feet where truly content.

Hardiness
Zones 3–9
Light
Part Shade / Full Shade
Height
3–6 ft.
Spread
3–4 ft.
Plant type
Fern
Traditional use
pain relief, topical applications, respiratory support
$20.00Currently unavailable
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№ 023
Osteomeles schweriniae, bone apple, ferny evergreen foliage with small white flowers.
Bone Apple
Osteomeles schweriniaeBone Apple

Osteomeles schweriniae, the bone apple, is a refined evergreen shrub in the rose family, close kin to hawthorn, cotoneaster, and photinia, and a botanical rarity seldom seen in American gardens. The genus name joins the Greek osteon, bone, and melon, apple, a nod to the stony hardness of the little fruits, while the species epithet honors the German dendrologist Count Fritz von Schwerin. Native to the dry valleys and open slopes of Yunnan and western Sichuan in southwestern China, the shrub carries very small, ferny, pinnate leaves along dense, wiry, arching stems, giving a fine texture unusual among broadleaf evergreens.

Hardiness
Zones 7–11
Light
Full Sun / Part Shade
Height
2–5 ft.
Spread
2–3 ft.
Bloom
White
Plant type
Shrub
$25.00Currently unavailable
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№ 024
Oxydendrum arboreum, sourwood, drooping sprays of white urn-shaped summer flowers.
Sourwood
Oxydendrum arboreumSourwood

Oxydendrum arboreum, the sourwood, is one of the loveliest and most distinctive trees of the Eastern American woods, and among the very last to flower each year. The name tells the story twice over: Oxydendrum joins the Greek oxys, sour or sharp, and dendron, tree, while the common name echoes the same tang, for the leaves, twigs, and bark all taste sourly of oxalic acid when chewed. A member of the heath family alongside azaleas, rhododendrons, and blueberries, sourwood stands alone as the sole species in the genus, native to well-drained, acid woodland soils from southern Pennsylvania to the Florida panhandle and west toward Louisiana, most abundant in the lower Appalachians.

Hardiness
Zones 5–9
Light
Full Sun / Part Shade
Height
30–50 ft.
Spread
15–25 ft.
Bloom
White
Plant type
Tree
Traditional use
digestive health, respiratory support, general wellness
$23.00Currently unavailable
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