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Plant & Garden Varieties beginning with O Page 12 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 
Orixa japonica Succeeds in any fertile soil in sun or part shade[182, 200]. Survives in fairly dry shady conditions[200].
The leaves have a foetid smell[184]. They are distincly and pleasantly aromatic according to another r... [MORE] Ornithogalum narbonense An easily grown plant[90], it succeeds in any position[42] in ordinary garden soil[1]. Prefers a sunny position[200]. Succeeds in short grass[90], though this should not be mown from the time the bulbs start to... [MORE] Ornithogalum pyrenaicum An easily grown plant, succeeding in ordinary garden soil[1, 42], thriving in sun or shade[42]. Succeeds in dry soils and, once established, is drought tolerant[190].
Plants are hardy to about -20°c[200].
Gr... [MORE] Ornithogalum umbellatum An easily grown plant, succeeding in an ordinary garden soil[1, 42]. Tolerates partial shade[200].
Hardy to about -20°c[200]. The dormant bulbs are very hardy and will withstand soil temperatures down to at le... [MORE] Ornithopus sativus This species is occasionally cultivated as a green manure crop[50].
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. ... [MORE] Orobanche ammophyla We have very little information on this species and do not know if it will be hardy in this country. It probably requires a well-drained soil and should succeed in sun or shade.
A fully parasitic plant lacking... [MORE] Orobanche californica We have very little information on this species and do not know if it will be hardy in Britain, but judging by its native range it should succeed outdoors at least in the milder areas of the country. It require... [MORE] Orobanche cernua We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors at least in the milder areas of this country. It req... [MORE]
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Page 12 of 20 containing O Varieties 155 Varieties Listed in Total
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