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More eucalyptus

Posted 09-24-2017 at 02:14 AM by Nn2036

Originally Posted by B87 View Post
For drought and cold tolerance I would also suggest...

Olea europaea
Eucalyptus pauciflora
Eucalyptus gunnii

yes, have already discussed the two eucs (very nice plants I agree) and their potential plus several others. the olive may (or may not, LOL) be potentially a bit dicey as a long-term ornamental let alone a fruit producer and over here is generally regarded as normally hardy to 15f and generally ONLY in areas where those kind of temps are rare and temporary---though it can come back from the base and trunk from injury sustained at somewhat lower temps for sure. FWIW, this plant is very very rare in western Oregon and Washington (those there is some experimentation with "new" hardier varieties) in nominal USDA 8 and 9 climates of parts of the PNW.

IMHO, the "zone 7" rating can be more a hindrance than a help sometimes in situations like this. being based SOLELY on average low temps. it cannot fully account for all the other factors (precipitation, humidity, heat) that are ALSO a potential limiting factor to plant performance let alone survival in a particular spot. sadly, a "one size fits all" system like USDA zones is not necessarily a big help when choosing plants without further reference to influences like the other factors just mentioned. I would hasten to add that there is no system around that is universally applicable and any rating or zone recommendations as to plants must be tempered by and tested against a look-see and survey of what is REALLY growing in a particular place as opposed to what "should" grow there and yes, some (or even a lot) of experimentation and "zone pushing". just how much experimentation really happens is dependent on how much time, money, and energy the gardener wishes to invest acquiring, planting, and caring (including potential extra protection of those plants) or providing optimum conditions extra water, better drainage, or whatever an otherwise "mostly adapted" plant needs to survive in a given place AND how much trial and tribulation "he" wishes to endure IF some of the plants turn out less well than either the environment of his additional care can sustain.

"keen" or experimental gardeners can be rather like gamblers----hoping for a horticultural "jackpot" where they succeed with some otherwise different, new, or untried, or "crapping out" when the gamble fails---but it does keep them alert, interested, AND as often as not humble, LOL.
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