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This striking groundcover is a delightful perennial with masses
of large white daisy flowers throughout summer. It forms small clumps
(±5 cm x 12 cm) of attractive lush green leaves. The leaves
are linear (long and narrow with nearly parallel sides) with occasional
irregular blunt teeth on the margins. The leaves and stems are covered
with small white hairs.
The flowers are held erect above the leaves, a single daisy at the
tip of a long, strong, flowering stem. The petals are pure white
almost shiny above and mauve with blue lines beneath. The disc-florets,
in the centre of the flower are tipped with black and open to bright
yellow. Each flower lasts for a few days and remains open during
the evenings and on cloudy days. Flowering starts in spring (August)
and continues through to autumn (March). This lovely plant was collected
in the Drakensberg where it grows in the rocky grasslands along
the mountain slopes.
Growing Osteospermum jucundum 'White Moon'
Osteospermum jucundum 'White Moon' is a must have for every
garden and especially for gardeners that love white flowers. It
is easy to grow forming a tight, neat green carpet decorated with
many pure white flowers throughout the summer. It must be planted
in full sun and in fertile, well-composted soil where it receives
regular watering throughout the year. Osteospermum jucundum
'White Moon' is most effective when planted in groups of at least
3 to 5 plants. At Kirstenbosch it is planted en masse to fill the
gaps after the spring annuals have finished flowering, in small
groups in the herbaceous borders and as a groundcover along the
edges of paths. The dark green foliage contrasts beautifully with
silver or grey foliage such as that of Plecostachys serpyllifolia.
For an all white show in mid summer combine it with Wahlenbergia
rivularis 'White Balloons',
Salvia chamelaeagnea 'Summer Snow', Scabiosa incisa
'White Carpet' and Hebenstretia dura 'White Ribbons' - all
special selections promoted by Kirstenbosch. These white flowers
cool the warm summer days and are visible till late in the evening
for visitors to enjoy.
New plants of Osteospermum jucundum 'White
Moon' can be propagated from cuttings that root well at any time
of the year.

More about Osteospermum jucundum
The identification and classification of the genera Osteospermum
and Dimorphotheca is rather difficult and confusing.
Osteospermum jucundum was previously described and is also
known as Dimorphotheca jucunda of which only pink flowering
forms have been described. There is now some dispute as to the correct
identification of this plant, some botanists preferring to place
it with the species Osteospermum caulescens that has white
flowers. Until the dispute is resolved, we are sticking to the original
identification. There are about 45 species of Osteospermum
found in south and tropical Africa, St Helena, Somalia and SW Arabian
Peninsula; 35 are found widespread throughout southern Africa.
The common name of bergbietou or bloubietou (mountain
bietou and blue bietou respectively) comes from bietou, the
original Khoikhoi name first recorded in 1814 for a species of Osteospermum.
Today bietou is very generally applied to many members
of the daisy family, in particular Osteospermum and Dimorphotheca.
It is usually applied with a qualifying prefix, to distinguish
one from another, as in this case berg- (mountain) because it is
found in the wild in the mountains, and blou- (blue) possibly because
of the blue-black centres of the flowers of some colour forms or
because it looks very similar to some species that have purplish-blue
flowers. In some instances the name is used specifically for species
that are toxic to livestock, and yet is also applied to others that
are very palatable and highly nutritious, or at least non-toxic.
Bietou has also given its name to a farm and the surrounding district,
the Biedou, near Clanwilliam in the Western Cape.
References:
- Smith, C.A., 1699, Common Names of South African Plants, Dept.
of Agricultural Technical Services, Botanical Survey Memoir No
35, Government Printer.
- Leistner, O.A. (ed.), 2000, Seed plants of southern Africa:
families and genera, Strelitzia 10., National Botanical Institute,
Pretoria
Liesl van der Walt
Kirstenbosch NBG
December 2001
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