The recently discovered Wollemi pine was a topic of discussion on the Don Burke gardening radio program recently. This fossil conifer has been a source of considerable disappointment to many gardeners since its release. One could reasonably think that a species of tree that has survived for 200 million years, according to the accompanying care guide, would be fairly hardy, but this is not the case. These trees cannot handle heavy rainfall, drought, or full sun. They are easily stressed, and prone to phytophthora root rot, as well several other soil diseases.
The tree I received last Christmas was soon re-potted into a slightly larger container with some coco peat, compost and worm castings as fertiliser, and a little coarse river sand. After re-potting, the tree was positioned on a verandah on the northern side of our house, but it quickly became apparent that it was not happy in a warm environment, and was transferred to the verandah on the south side where it has survived, but has made only a couple of centimetres growth. The care guide gives no real indication of the species’ fussy moisture requirements other than the vague advice to “check moisture levels regularly”. Neither did the care guide state that soil in the area where the trees were discovered could have a pH as low as 4, which is too acidic for most plants to survive, or that a coir supplier had developed a special potting mix for these trees.
Don said that little information on the species had been available, resulting in the death of a lot of purchased Wollemi pines, and asked a spokesman from Sydney’s Botanic Gardens why the tree had been released for sale prematurely. The spokesman’s response was that it was to prevent people from damaging the discovery site when attempting to obtain a specimen of these trees. This reasoning would be easier to accept if they didn’t charge such exorbitant prices for these pines.
My advice, if you would like to grow a Wollemi pine, is to visit the web site below and find out if you can provide suitable conditions for this plant before outlaying any money.