Is one of a number of plant species
which are presently being tested
for their suitability to be grown as Green Roof plants in the Durban
region that have initially shown good results. They all occur naturally
within a radius of 50 km of the Durban city centre
multicava occur naturally in shallow soils
in light to deep shade on rocky cliffs in the greater Durban
plants are small fast growing evergreen succulent mat-forming herbs,
as well as the leaves are highly succulent. They capable of rapid
to the fact that they reproduce, vegetatively, by seed and from
develop on the flower heads.
plants are extremely decorative groundcover having large dark green
and a neat growth habit. They produce large masses of small white to
over a very long period of time during winter months and early spring.
natural habitat they are able to withstand reasonable periods of
drought due to
their very succulent nature. From my experience of growing these plants
found them to be fairly drought resistant.
Disease and pest resistance
are generally disease resistant, however they often in particular the
and flower stems become infested with mealy bug which are mostly
and tended by ants. They are the larval host plants of two butterflies
family Lycaenidae, Leptomyrina hirundo (tailed black eye) and
gorgias gorgias (common black eye)
Suitability as Green Roof plants
results of the plants that are being tested under Green Roof conditions
plants certainly give the impression that they are going to be suitable
Roof ground cover plants under certain conditions. They appear to be
be used in mixed groundcover plantings that give them a little
the direct sun.
Biodiversity value in the Green
larval food plants for butterflies allowing these butterflies to become
resident. When in flower they attract large numbers of pollinating
particular honey bees and small butterflies.
Cautions and precautions in the
None that I am
aware of at the moment