20/04/2026
Banksia marginata Silver Banksia is also a Victorian species...
๐บ๐๐๐ฉ๐๐ง๐ ๐ญ๐ง๐๐ข ๐ผ๐๐ค๐๐๐๐ง ๐๐๐ฉ๐๐๐ # 19
๐๐ ๐ฐ๐๐ฌ ๐ซ๐จ๐๐๐๐!
There are only 2 native Banksia species in SA. There are about 170 native species in Australia. So, no excuse for not being able to recognise ๐ผ๐๐ of our SA speciesโฆ.
Our two species of Banksia have to do a awful lot of heavy lifting. Their importance to wildlife is greater in SA than this number would suggest. Banksias provide copious essential nectar to honeyeaters, ants, many other insects, and numerous other birds for months each year, as the flowers open up sequentially.
In our higher rainfall areas Silver Banksias provide an important food resource for wildlife, particularly woodland birds! But Silver Banksias are now rare. Fewer Silver Banksias = fewer birds. Banksia numbers are declining as they grow on better soil which has been cleared.
And seedlings (which must taste like the wildlife equivalent of chocolate pudding) are eaten off by kangaroos, goats, and deer year after year.
๐ฆ๐ถ๐น๐๐ฒ๐ฟ ๐๐ฎ๐ป๐ธ๐๐ถ๐ฎ
Tallish shrubs to small trees, mostly smooth edged dark green leaves on top and narrow flower heads and cones, on good soils.
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Squat shrubs, saw-tooth edged light green leaves, broad stumpy flower heads and cones. Found overwhelmingly on sand (nutrient deserts). Desert Banksia is almost all our own, with a leakage over the border into western Victoria.
๐ฃ๐๐ข๐ง๐ข
A. Desert Banksia ๐ต๐๐๐๐ ๐๐ ๐๐๐๐๐ก๐ IBW5P 2nd Ed. p98-9
B. Silver Banksia ๐ต๐๐๐๐ ๐๐ ๐๐๐๐๐๐๐๐ก๐ IBW5P 2nd Ed. p98-9
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IBW5P thought there were about 70 Banksia spp. in Australia, but AVH lists 173 species! WA has gone from 60 to 150 Banksia spp as about 90 Dryandra spp have been placed in the Banksia genus. NSW has 17, Victoria 9, but still only 2 in SA.
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๐บ๐๐๐ค๐๐๐ ๐๐๐๐ฃ๐๐ ๐ต๐๐๐๐ ๐๐
Is Silver Banksia in your revegetation mix? Other species, such as Acacia pycnantha, Olearia ramulosa, and Dodonaea viscosa, get way more action that they deserve in planting projects....
Banksia marginata can be grown from viable seed (up to 80% germination with good seed). Trade Secrets: MUST be planted in cold weather late July to early August and MUST only use a low phosphorus fertiliser, if any, or they will be cactus. And who wants cactus. Thanks to Yvonne Gravier, Manager of the Kersbrook Landcare Group Nursery
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'Interrelationships'
Plants and animals work together to meet their needsโ - in this case, flower fertilisation in return for nectar.
โ๐๐ง๐ญ๐๐ซ๐ซ๐๐ฅ๐๐ญ๐ข๐จ๐ง๐ฌ๐ก๐ข๐ฉโ ๐ข๐ฌ ๐จ๐ง๐ ๐จ๐ ๐ญ๐ก๐ ๐ฆ๐๐ข๐ง ๐๐จ๐ง๐๐๐ฉ๐ญ๐ฌ ๐๐ง๐ ๐จ๐ฉ๐๐ซ๐๐ญ๐ข๐ง๐ ๐ฉ๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐๐ฌ ๐ญ๐ก๐๐ญ ๐ฌ๐ฎ๐ฌ๐ญ๐๐ข๐ง ๐ญ๐ก๐ ๐ง๐๐ญ๐ฎ๐ซ๐๐ฅ ๐ฐ๐จ๐ซ๐ฅ๐.
Based on Steve Van Matre (1979) Sunship Earth: An Earth Education program for getting to know your place in space, American Camping Association.
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