THE CULTIVATION AND HABITATS OF SOME RARE SOUTH AFRICAN LEDEBOURIS INCLUDING
THE BEAUTIFUL RESNOVA MEGAPHYLLA
South Africa has a wealth of Ledebouria species found in many different
types of habitats. These range from cold climatically severe grasslands
in the interior summer rainfall areas of the country to narrow endemics
only known from one mountain top.
Some species are rare and vulnerable owing to habitat degradation and destruction.
This applies particularly to several dwarf species known from only a handful
of localities on the Mpumalanga escarpment.
The dwarf Ledebourias are particularly beautiful having very attractive
leaves and flowers.

Ledebouria galpinii in full flower. The leaves and bright pustulate flowers
make this species one of the most attractive of the dwarf early spring
flowering species.
Ledebouria galpinii, which is an endangered species is only known from
one mountain top west of Nelspruit in Mpumalanga. It has two unusual deep
mauvish brown or maroon densely pustulate opposite leaves. In common with
many dwarf Ledebourias found in mist belt escarpment regions it flowers
early in spring in September and October.

The leaves of Resnova megaphylla make it an attractive subject for ornamental
container planting.
Ledebouria lepida is another dwarf species found in shallow moist soil
over sheets of exposed rock. It occurs on the summit of the eastern Waterberg
to the south east of Vaalwater in the Limpopo Province. Unlike Ledebourias
galpinii this species comes into leaf and starts to flower only once the
first substantial summer rains fall in December and January. The flowers
are a very attractive bright lavender.

The typical habitat of Ledebouria hypoxidoides on hill tops around Grahamstown
in the Eastern Cape. The plants are found in open sunny patches amongst
bush and grass. Grahamstown is visible in the far distance of the photograph.
Ledebouria monophylla is found mostly on the Mpumalanga escarpment around
Graskop and further westwards towards Mount Sheba. It is one of the few
species that requires a thorough burning of its mountain grassland and
fynbos habitat before large populations of bulbs are stimulated into
mass flowering. Such occurrences sometimes only occur once every 3-5
years and during such periods the bulbs remain semi-dormant. After fire
there is a mass flowering simultaneous with the advent of the main summer
rains.
L. monophylla has one very characteristic rounded leaf, occasionally
two.
Two of the most attractive and unusual Ledebourias are Ledebouria hypoxidoides
and Ledebouria viscosa.

Resnova megaphylla displays a great deal of variability in its beautifully
spotted leaves.

Ledebouria hypoxidoides in flower in habitat near Grahamstown, Eastern
Cape.

The habitat of Ledebourias lepida on the summit of the Waterberg near
Vaalwater in the Limpopo Province. The plants grow in sandy soil at the
edges of sheets of exposed rock. This niche habitat becomes saturated
during the main summer rains from late November until late February in
years of average or above average rainfall. These conditions are ideal
for the growing flowering and seeding of Ledebourias lepida.
L. hypoxidoides is narrowly confined to the hills around Grahamstown
in the Eastern Cape. It has a crown of foliage resembling the broader
leaved Hypoxis species. The leaves are most attractive with a dense velvety
pubescence. The pubescence imparts a silvery sheen when the plants are
grown in strong direct sunlight. This plant, though rare in nature, is
readily propagated from seeds.
Ledebouria viscosa is an extraordinary plant with one, occasionally 2-3
erect broad leaves. These have a viscous secretion to which sand particles
adhere often giving the leaf a brownish appearance. This is another rare
species found on the sandy plains to the north west of the western end
of the Waterberg in the Limpopo Province. The habitat continues for many
kilometres to the north but the plants appear to be restricted only to
one small area of deep pinkish sand.
Perhaps one of the most elegant of all the larger Ledebourias is Ledebouria
agavoides (in ed.) This species has been found at one spot south of the
southern end of the Leolo Mountains in Sekhukhuneland, a region rich
in endemics. The plants have partly exposed bulbs, broad grey leaves
like the larger agave species and a particularly attractive large spike
covered with white flowers, borne in the early summer.
One of the most beautiful of all South African bulbs is Resnova megaphylla.
The broad leaves are extremely handsomely spotted and blotched with inky
blackish mauve and rich chestnut. Many leaves have underlying secondary
spotting of pale slate and ashy grey. The species is found growing quite
abundantly in a restricted area of hills just within the eastern boundary
of the Sekhukhuneland centre of floristic endemism.
All Ledebourias and Resnova megaphylla are readily propagated from seed.
An ideal sowing mixture comprises a third sandy soil, a third silt and
a third riversand with a small amount of Cultera
Germination Mix mixed in. (The equivalent to this germination mix is
likely to be available all over the world.) The seeds should be lightly
scattered across the surface of the soil and just covered with the sowing
medium.
The young bulbs develop quickly after germination. Wherever possible
large deep seed trays or deep pots should be used for the germination
process.
The young bulbs should be left in the propagation trays for the first
two seasons and then transplanted into containers or else garden situations
where they are to be permanently cultivated. The dwarf species of Ledebourias
usually flower in the second or third season when grown from seed, whereas
the majority of the larger bulbed species take 3 5 years to reach
flowering size.
Penrock Seeds and Penrock Plants specialises in Ledebourias and specially
selected clones of Resnova megaphylla. These may be purchased either
as seeds or bulbs.
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