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On the weekend, I treated my three eldest to an overnight camp in Nannup, about 60km southeast of Busselton. We pitched our tent near Barrabup Pool, which was once an old timber milling community.
One of the key attractions of this location is its acacia dealbata forests that transform wooded areas into shaded moss growing micro-climates. Acacias are one of the few plants that are flowering at this time and the bright yellows against their grey-green foliage are outstanding. These Wattyl's are a formidable defence against light entering through their canopy and therefore swamp everything apart from fungi and moss from growing.
Acacia dealbata is a glorious tree that can be readily grown as an ornamental in your garden. Of the more than 1300 species of acacia dealbata is very attractive, not only in the setting shown below but also grown individually in gardens. Dealbata has a slender trunk reaching anyway from 6-8m (19-26ft) and flowers profusely through winter and early spring.
Acacia dealbata requires an annual rainfall of 200mm (7.8in) and grows well under the canopy of other trees. If you plan to grow this acacia in groves then expect that plants grown below them will struggle to survive. Acacia dealbata prefers cool moist winters which rules out most rainforest plants as undergrowth.
If you suffer from hayfever or sinus problems then most acacias (wattyls) will be hard to live with in your garden. The flower's high pollen content can irritate allergy sufferers from late winter to mid spring. If this is the case, then you are probably better off admiring acacias from a distance, or while they're not flowering.
Comments
Hi Stu
Isnt the Acacia Dealbata an introduced plant in the SW forests having migrated there from Victoria? Also 200 mm per year seems to be quite low as this would not sustain a forest. Deserts are defined by an annual rainfall of less than 250mm.
Posted by: Norm | July 25, 2006 8:49 PM
Yes Norman. The dealbata is an introduced species originating in New South Wales, Tasmania and Victoria. It is actually considered a weed in Southwest forests due to its rampant growth and destruction of natural undergrowth.
My apologies concerning the rainfall. It should have read 1200mm (47mm) per annum.
Posted by: Stu | July 26, 2006 6:42 AM
Acacias, the glory of Aussie winters. Although as we were driving around central Victoria a couple of days ago, we didn't see nearly as many in bloom as in previous years. Wonder why?
Posted by: Val | July 26, 2006 2:06 PM
Beautiful scenery. Nothing like the smell of the forest. I'm paralyzed now and get close when I'm near the lake. Miss those hikes through the trees though.
Posted by: Repellent Review | July 26, 2006 11:17 PM
I am definitely enjoying them from afar via that picture... to escape our July heat and rest on the cool moss-covered logs beneath the acacias would be wonderful!
Posted by: blackswamp_girl (Kim) | July 27, 2006 12:44 AM