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Oncosiphon grandiflorum
This tall, button-flowered annual is ideal for larger gardens and can be grown as a spring and summer annual....
Oncosiphon suffructicosum
Oncosiphon suffruticosum is an aromatic annual with masses of bright yellow flower heads, and is an important Cape herbal medicine....
Oplismenus hirtellus
An outstanding groundcover for those difficult shady areas under trees, the grass Oplismenus hirtellus makes an interesting textured carpet of deep green...
Orbea lutea
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Ornithogalum candicans
The summer hyacinth, with its fragrant bell-shaped flowers, is an ideal accent plant in a mixed bed and is also very suitable for cut flowers. It was previously...
Ornithogalum regale
The ever so graceful Ornithogalum regale is one of the summer flowering gems of the Drakensberg....
Ornithogalum saundersiae
The giant chincherinchee is an attractive, easily cultivated garden plant and produces eye-catching, long-lasting flowers that are very suitable for use...
Ornithogalum viridiflorum
With its pale green foliage and upright stems crowned with yellowish green, bell-shaped, flowers, Green Berg Lilies make wonderful, ornamental garden plants...
Oscularia caulescens
Oscularia caulescens is an easy-to-grow succulent groundcover, ideal as an accent plant in especially rockeries or pots and for low-maintenance and water-wise...
Oscularia deltoides
Oscularia deltoides is an easy-to-grow, succulent groundcover, ideal as an accent plant and for low-maintenance and water-wise gardens....
Oscularia piquetbergensis
Oscularia piquetbergensis, just like O. deltoides, is another easy-to-grow succulent groundcover for low-maintenance and water-wise gardens....
Osteospermum incanum subsp. incanum
A vigorous, sprawling, densely-branched, low-growing grey shrub that is suitably equipped to beautify coastal and interior gardens alike. Its grey leaves,...
Osteospermum moniliferum
A fast growing shrub with bright yellow daisies in autumn and winter followed by edible berries; a useful pioneer, screening plant and popular with birds...
Osteospermum monstrosum
Osteospermum monstrosum is arguably the commonest Namaqualand spring annual. Most people will have noticed these small plants with yellow flowerheads and...
Osteospermum scariosum
Osteospermum scariosum is a beautiful yellow daisy, the flowerheads often having a striking dark ring around the centre....
Otholobium virgatum
This is a mat-forming and low-growing, trailing, ground cover with masses of mauve-pink, pea-like flowers in spring....
Othonna arbuscula
A small succulent shrub from the arid areas of southern Africa, which has the appearance of a small tree or bonsai....
Othonna dentata
This blue-grey succulent shrublet is ideally suited to coastal gardens and deserves to be more popular with gardeners....
Othonna euphorbioides
A thorny, yet charming, mound-forming species of Othonna with striking yellow flowers to brighten your garden in the cold winter days....
Othonna perfoliata
An Othonna with striking yellow flowers, found lurking among tall vegetation, to brighten your garden in the cold winter days....