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Eucalyptus paliformis - Wadbilliga Ash (New South Wales) This very attractive small to medium-sized ash comes from a very restricted area and is rare in cultivation.  It has green, narrow leaves, less oblique than those of most ashes, and sometimes develops multiple trunks.  Rather slow-growing at first, and requires excellent soil drainage.  One of the hardiest true ashes once it achieves some size, withstanding temperatures down to 6°F.
Photos of Eucalyptus paliformis

Eucalyptus parvula (formerly parvifolia) - Small-leaved Gum, Kybean Gum (New South Wales, Victoria) This is one of the very hardiest non-snow-gum eucs along with E. gunnii.  Generally a rather small tree of 35 - 55'; in cultivation it is somewhat variable and may grow into quite an impressive-sized specimen with considerable crown diameter and attractive spreading, semi-weeping branches.  In addition, it has attractive smooth bark.  The adult leaves are generally small, seldom exceeding 3" in length; and pointed, and juvenile leaves are also usually small, but are not always pointed; there is some variation.  Both juvenile and adult stems are used for cut foliage.  Like E. gunnii it will also grow in waterlogged, infertile soils; and it is lime-tolerant, and it hybridizes freely with other species.  Very adaptable, suitable for a wide variety of soil types and situations, and heat-tolerant when well-irrigated; hardy to -5 to +5°F.
Photos of Eucalyptus parvula

Eucalyptus pauciflora - White Sallee, Cabbage Gum, Snow Gum, Weeping Gum, Jounama Snow Gum (Australia) This well known but confusing group of gums grows all across the alpine and subalpine regions of eastern Australia.  There is immense variation in E. pauciflora and it has therefore been divided into six subspecies; however, in some references the subspecies are listed under their own names rather than the species E. pauciflora.  I have decided to keep them all under E. pauciflora here, because the variation within each subspecies can be confusing, and because there are often forms of E. pauciflora found that do not seem to key out to any of the specific subspecies.  They can be recognized by their smooth bark and thick-textured, usually semi-pendulous leaves with parallel veins.  They tend to take a bit longer than the other gums to establish and usually do not start making fast growth until they have been in the ground a couple of years (if they ever do--some forms are slow-growing).  All of the trees/shrubs in this group are fairly cold hardy, but they vary in cilmate adaptability and habit.  Furthermore, it must be remembered that their relatively slow growth means they take more time to recover from severe frost damage than some of the other hardy eucs.  All are reasonably heat tolerant if they are well-irrigated and given good drainage.  They are also tolerant of exposure to wind and salty air.

Photos of Eucalyptus pauciflora ssp. niphophila
Eucalyptus pauciflora ssp. niphophila is also featured in Milligan Seeds and Trees Gallery: (tree in habitat) (small tree) Photos of Eucalyptus pauciflora ssp. debeuzevillei
Eucalyptus pauciflora ssp. debeuzevillei is also featured in Milligan Seeds and Trees Gallery: (flower buds) Photos of Eucalyptus pauciflora ssp. pauciflora
Eucalyptus pauciflora ssp. pauciflora is also featured in Milligan Seeds and Trees Gallery: (flower buds) Eucalyptus pauciflora ssp. acerina is featured in Milligan Seeds and Trees Gallery: (bark)

Eucalyptus perriniana - Spinning Gum, Dargo Gum, Round-leaved Snow Gum (New South Wales, Victoria, Tasmania) In spite of growing in three Australian states and being reasonably well known in cultivation, this species is relatively uncommon in the wild.  The outstanding feature of this species is the circular juvenile leaves which completely encircle the stem, while the stem passes through the center of each leaf and out the other end!  It also makes a very attractive, fast-growing, ornamental tree as an adult, very rapidly achieving a height of around 30 - 55'.  The adult leaves are long and colored an attractive shade of blue-grey.  Tasmanian provenances are slightly are slightly less hardy, but have the most attractive juvenile leaves, which are relatively small, perfectly round, and often assume shades of lavendar-blue.  Quite adaptable to a wide variety of climates, and very hardy.  -2 to +6°F.
Photos of Eucalyptus perriniana
Eucalyptus perriniana is also featured in Milligan Seeds and Trees Gallery: (leaves) (tree in habitat) (tree in habitat)

Eucalyptus piperita - Sydney Peppermint (New South Wales) A medium to large sized, single trunked, ornamental tree preferring dryish sites and having fibrous bark like other peppermints.  Guessing hardy to about 10 to 15°F.

Eucalyptus polyanthemos - Red Box (New South Wales, Victoria) Although not very hardy, this species is worth mentioning because of its frequent use in the floral industry.  The juvenile leaves are elliptical, somewhat wider than they are long, but are not stem-clasping--rather, they hang semi-pendulously from short petioles.  Adult leaves are slightly longer but not much different.  This species probably cannot be expected to reach tree size outside of zone 9, but it still makes an excellent cut foliage plant in colder areas, where it will freeze to the ground periodically.  14 - 18°F.
Photos of Eucalyptus polyanthemos

Eucalyptus pryoriana - Rough-barked Manna Gum (Australia) This is actually a miniature, rough-barked variant of E. viminalis.  There are probably no provenances of this species that rival E. viminalis in hardiness.  Guessing hardy to 12 - 18°F.

Eucalyptus pulchella - White Peppermint, Narrow-leaved Peppermint (Tasmania) An attractive ornamenal with smooth yellow, white and grey bark and fresh green-whitish leaves that smell of peppermint when crushed.  Very adaptable, tolerating some drought and coastal conditions; but not very well known outside of Australia and New Zealand.  Guessing hardy to 8 to 15°F (??)
Photos of Eucalyptus pulchella

Eucalyptus pulverulenta - Silver Mountain Gum, Silver-leaved Mountain Gum, Silver Gum, Powdered Gum (New South Wales) This species comes from a very restricted area and only a few groves remain in the wild.  But it is so common in cultivation that there is no threat to its preservation.  This is the species most commonly used for cut foliage production in flower arrangements, and there will always be a high demand for its preservation in the floral industry.  The silvery-grey juvenile foliage is what you usually see when you buy "eucalyptus" at a floral shop or see a eucalyptus wreath prior to treatment.  As a landscape tree it is not the most attractive euc: the juvenile foliage is kept through adulthood and the tree assumes a very scraggly, awkward habit, casting very little shade.  It is not exceptionally hardy either, tolerating temperatures down to 6 to 13°F before it freezes to the ground.

Photos of Eucalyptus pulverulenta
Eucalyptus pulverulenta is also featured in Milligan Seeds and Trees Gallery: (leaves) (tree)

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