Traveling along
the
most
scenic coastal drive from Gordons
Bay to
Betty's
Bay (R44 Route) you will discover
The
Harold
Porter Botanical Garden,
situated in the heart of the unique
floral biome known as the "fynbos".
In this beautiful and pristine section
of the South Western Cape coastline,
the number of plant species per
square kilometer is greater than
anywhere else in the whole of Southern
Africa. The
Harold
Porter National Botanical Garden
is one of eights
National
Botanical Gardens
within the
National
Botanical Institute.
The primary function of this
Botanical
Garden is to grow
and display plants of the coastal
fynbos and strandveld.
What is fynbos?
Fynbos is evergreen shrubland
vegetation, characterized by small
leafed, drought tolerant tough
plants growing on poor soil. (The
name means "fine leafed"
bush.) It has extraordinary diversity
of species - more than 8 000,
including Erica's (shrubs with
small, fine leaves and delicate
tube-like flowers), Protea's (woody
shrubs with leathery leaves) and
always Restio's (reed-like plants
with no leaves). It is also rich
in bulbous plants (such as the
gladiolus species). There are
many endemic species.
Geology and vegetation
Geologically the whole are comprises
of Table Mountain Sandstone which
weathers into shallow, coarse,
sandy soils with outcrops of shale
in some areas. The water table
is very high during winter giving
rise to vlei's with dark acid
water stained by compounds leached
from the plants. Plantings in
the Garden reflect the different
types of vegetation in the different
areas:
Beach and dunes: Low wide shrubs
with extensive roots systems which
are able to bind the sand and
are also able to cope with the
severe conditions produced by
strong winds, sand blasting and
salt spray.
Coastal plains and vlei's: Restio's
and reeds and a host of other
species that thrives in permanently
or seasonally waterlogged conditions.
Mountains and slopes: Low growing,
wind blown shrubs, including Erica's
many members of the Protea, Daisy
and Pea families amongst others
and a large number of Restio's.
Geophytes are plentiful.
Forested gorges: Relict of afromontane
forest is: Cunonia capensis (Red
Alder), Curtisia dentate (Assegai),
Podocarpus latifolius (Real Yellowwood),
Platylophus trifoliatus (White
Elder) and Rapanea melanophloeos
(Cape Beech).
Fauna
The birds are a special joy in
the Garden. More than 60 species
have been recorded, including
the Cape Sugarbird and the Orange
Breasted Sunbird that is endemic
to fynbos. A bird list is available
at the entrance of the Botanical
Gardens. Mongooses and baboons
are often seen but there are also
other small mammals, e.g. otters
and dassies. Leopards are very
rare and are nocturnal as are
porcupines and genets. Sometimes
a number of reptile species can
be seen, including the puffadder
and tortoises.