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
Gladiolus dalenii are an extremly common plant found growing throughout Durban area often in disturbed areas and cultivated
An upright growing
geophyte. The strap like leaves followed by the flowers emerge during
the growing season from an underground corm.
Gladiolus dalenii is very easily
propagated from numerous cormlets which develop from the base of the
main corm as well as from seed.
plants are being grown for their very attractive
these plants are not particularily drought resistant they have done
well on the deeper soils probably due to the fact that there is plenty
of rain during their sort growing period. Once they have flowered and
produced seed the above ground portions of the plant die back leaving
the corm deep in the soil where it requires little or no water until
the following growth period
Disease and pest resistance
Thrips can be a problem
Suitability as Green Roof plants
plants are valuable feature plants in green roof plantings where the
soil depth is in excess of 75 mm. One of the factors that has made them
suitable as a green roof plant is that their vegetative period
corresponds with the rainy season and their dormant period with the dry
season in Durban.
Biodiversity value in the Green
All plants that
will grow successfully on a green roof have biodiversity value.
Cautions and precautions in the Green Roof
No particular precautions known.