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Plant & Garden Varieties beginning with O Page 17 of 20 containing botanical plant names begining with the letter O. 155 Varieties Listed in Total 10 11 12 13 14 15 16 17 18 19 20 
Osteomeles obtusifolia We have almost no information on this species and do not even know its country of origin, though it is likely to be North or South America. The following notes are based on the general needs of the genus.
Pref... [MORE] Osteomeles schwerinae Succeeds a sheltered position in full sun in any fertile well-drained soil[166, 182, 188].
Plants usually require protection outside the mildest areas of Britain[11], they are hardy to about -5°c, though the s... [MORE] Osteomeles subrotunda Succeeds a sheltered position in full sun in any well-drained soil[166, 182].
Plants usually require protection outside the mildest areas of Britain[11], they are hardy to about -5°c[184]. They can be grown on... [MORE] Ostrya carpinifolia An easily grown plant, succeeding in most soils[11], and growing well on chalk[200]. It succeeds in full sun or semi-shade[188].
Plants are hardy to at least -20°c[200].
A very ornamental tree[1], but it is s... [MORE] Ostrya virginiana An easily grown plant, succeeding in most soils[11].Thrives in any good loam, including chalk[200], it does not demand much light. Prefers a deep open loam. A rather slow-growing tree[227].
Plants in this genu... [MORE] Oxalis acetosella Prefers moist shady conditions and a humus rich soil in shade or dappled sunlight[4, 9, 13, 27, 37, 200]. Dislikes very heavy and wet soils[17].
Plants are hardy to about -25°c[187].
A dainty woodland carpete... [MORE] Oxalis articulata An easily grown plant, preferring a sandy soil in a warm dry position[1, 27, 37]. It dislikes dry or heavy soils[37]. Dislikes lime[37]. Prefers a southerly aspect[37].
This species is only hardy outdoors in t... [MORE] Oxalis barrelieri We have almost no information on this species and do not know if it will be hardy in this country. The following notes are based on the general needs of the genus.
Easily grown in a sandy soil in a warm dry po... [MORE]
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Page 17 of 20 containing O Varieties 155 Varieties Listed in Total
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