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  • Euphorbia
    • characias subsp. wulfenii   CAG00819
      Height1.2mWidth1.2mFlowering SeasonSpringWaterLLightSun
      Euphorbia characias subsp. wulfenii
      $12.00earn 60 points

      A drought hardy evergreen, shrub-like perennial. The stout reddish stems, clothed in glaucous grey green leaves, arise from a central rootstock. In their second year large heads of chartreuse flower-like bracts are produced above dense whorls of foliage.

      Cut back spent stems to base as they do not flower again.
      As seen on TV and in books, magazines....... Extremely tough and highly ornamental both in foliage and flower.
      Loves coastal conditions and easily grown in any reasonably drained sunny site elsewhere.

      Differs from ordinary E. characias in that the small flower in the centre of the bracts are yellow instead of red.

      Seedlings from select forms in the nursery, expect some variability, especially in size, but the standard should be high, reject those dull of flower or palsy of leaf. I would clone them but I have yet to see a cutting grown plant perform well, typically just flowering themselves into oblivion with little tolerance for dryness, anticipate ~15 good years out of a seedling.

    • dendroides   CAG01595

      (Tree spurge)
      Height2.5mWidth2.5mFlowering SeasonSpringWaterLLightFull Sun
      Euphorbia dendroides
      $12.00earn 60 points

      Undoubtedly one of the greatest and hardiest of the genus. The dome like crown of branches atop the central trunk becomes denser and more magnificent with time. During spring each branch bears a cluster of small green flowers, each held in showy, bright chartreuse bracts, then with rising summer temperature the narrow, soft green, glaucous leaves flare yellow, orange and red before being shed to conserve moisture over summer when its structural form can be most admired.

      At home in limestone soil around the Mediterranean Sea it will happily tolerate all but poor drainage and heavy shade though lean soil, drought and exposure yield the finest form and colour.

      Prune not. It is properly shrubby with persistent branches, unlike herbaceous types (e.g. E. wulfenii).

  • Limonium
    • minutum   CAG01351
      Height15cmWidth30cmFlowering SeasonSummerWaterLLightSun
      Limonium minutum
      $12.00earn 60 points

      A bun forming species from the Iberian peninsula with tightly packed rosettes of small, dark green, spoon shaped leaves and producing a thicket of finely branched flower stems bearing many tiny, pale lavender, starry flowers all summer long.

      A quick hair cut in autumn to remove the flowering stems returns the plant to its sculpted form and makes sure new winter growth will receive plenty of sunlight.

      Almost indestructible, it is at home in any well drained sunny site and is perfect for planting between loose paving or wall cracks where it will self seed gently for that cottage garden look and be content with the reflected heat.

      Unfortunately deeply penetrating roots make it completely useless for pots.

  • Potentilla
    • recta ‘Warrenii’   CAG01557

      (Sulphur cinquefoil)
      Height20cmWidth40cmFlowering SeasonSp - SuWaterM - HLightSun - L. Sh.
      $12.00earn 60 points

      A charming species that makes a verdant slowly spreading mound of serrated, five lobed, palmate leaves, studded with small citric yellow, five petalled, saucer shaped blooms.
      For edges or even the middle of paths, where it will tolerate the occasionally stray footfall, or a simulated European meadow with a couple of Cranesbills (Geranium pratense and G. sanguineum), Little bluestem (Schizachyrium scoparium) and some Spiked speedwell (Veronica spicata ‘Blue Sensation’) to round out the palette.

      More moisture loving than most but also more amenable in our climate, often self sowing in any brightly lit soil.

  • Rudbeckia
    • laciniata   CAG00567

      (Cutleaf coneflower)
      Height2mWidth60cmFlowering SeasonSu - AuWaterM - HLightSun
      Rudbeckia laciniata
      $12.00earn 60 points

      An exuberant perennial from the American tall prairies at its very best in the dog days of summer when lesser plants are flagging. Lush mounds of deeply divided, dark green leaves steadily rise through the growing season to be finally topped at the end of summer by elegantly branched heads of long stemmed daisy-like flowers with a green central cone and down swept bright yellow petals. After several weeks of bloom, irreverent of dry heat so long as moisture is available, the petals fall and the attractive cone-like seed heads then remain on display until removed adding height and seasonal interest all winter if desired.

      Evergreen in Perth but colder regions may find it less so.

      Easily grown in any soil with lots of sun, unfazed by clay. Water availability during the growing period dictates height but considerable dryness is tolerated, more so after flowering.

      Self seeds well in over irrigated sites and the seedlings are typically more vigorous than old congested clumps which are probably best divided or even discarded after several years.

  • Salvia

    (Sage)
    Lamiaceae

    A genus whose popularity has risen exponentially in recent times. Offering a diverse range of form and colour there is a Salvia for nearly every garden situation with more and more being discovered and described all the time. The count now stands somewhere in excess of 1000, including subspecies, according to The Plant List. They are found on every continent except Antarctica.

    From a gardeners perspective they can not all be treated the same, they come from many different climates after all, but as a rule of thumb can be grouped into winter rainfall and summer rainfall species and with few exceptions they all prefer well drained soil.

    Soft leaved species from Central and South America are usually autumn and winter flowering. Coming from summer rainfall areas they typically need protection from dry heat and the accompanying high light intensity and they vary in their tolerance of winter damp. As with most plants the larger the leaves the more water they require, this also dictates how fast they grow with many growing several metres in a single season.

    Species from south western North America, South Africa, the Mediterranean and the Canary Islands are all winter growers and are tolerant or demanding of dry heat and summer drought. Slower growing but usually longer lived these all tend to have small, densely haired, silver or grey leaves or a combination of these traits which help them conserve moisture. Most of these require no additional water in Perth and are well adapted to our climate. They tend tend to flower from spring into summer.


    Prune back to where vigorous new basal growth is seen, never to dead wood, they appear to store little food in their stems and without leaves stand a chance of starving to death or at least struggle to regenerate. The exception is those few that are tuberous or clump forming, these can be cut to ground level once the stems start dying back in late autumn.
    • roemeriana   CAG00595

      (Cedar sage)
      Height30cmWidth30cmFlowering SeasonSp - AuWaterM - LLightLight Shade
      $12.00earn 60 points

      A charming small perennial Sage, found amongst limestone in Cedar forest, in Texas, Arizona and into Mexico. The shrubby mounds of softy haired, toothed, heart shaped, grey-green leaves, bear short, rigid stalks of bright red, hooded, two lipped, tubular flowers, endlessly throughout the warmer months. Generally dies down to a tuft of basal leaves over winter.

      Trim of the spent flower stalks to promote flowering and cut down to the point of new growth once flowering has finished in winter.

      Relatively short lived, 3-4 years, but should readily self seed in well drained soil.

      Great for naturalizing in light shade under trees where it will perform well once established, even with considerable dryness over summer.

  • Verbena
  • Aethionema
    • grandiflorum   CAG01867

      (Persian stonecress)
      Height30cmWidth30cmFlowering SeasonSpringWaterLLightSun
      CURRENTLY UNAVAILABLE

      Small mounds of elliptical, waxy blue leaves smother in clusters of palest pink flowers followed by attractive papery seed pods.
      Essentially a small, shrubby, ridiculously drought hardy, self seeding, perennial Alyssum. What more could you want.
      For any baking well drained position.
      Trim hard when desired to remove spent stems.

  • Agastache
    • foeniculum   CAG01835

      (Anise hyssop, Licorice mint)
      Height1.2mWidth1mFlowering SeasonSu - AuWaterMLightSun
      CURRENTLY UNAVAILABLE

      A vigorous, clumping, Winter dormant perennial. Strong, square, stiffly erect stems, bear pairs of dark green, softly textured, sharply toothed, broadly lance shaped leaves which are strongly scented of licorice. All Summer and Autumn fat spikes of purple, tubular flowers are borne in great profusion to the delight of many nectar feeding insects.

      Cut to the ground in Autumn or enjoy the seed heads over Winter.

      Great for the tall border, or the back of a shorter one, perhaps with Salvia azurea and Monarda fistulosa.
      The fast growing mounds of leaves in Spring are alone, enough to make it worthy of garden space.

  • Anethum
    • graveolens   CAG02805

      (Dill)
      Height1.2mWidth40cmFlowering SeasonSpringWaterLLightFull Sun
      Anethum graveolens
      CURRENTLY UNAVAILABLE
      SEEDS

      A culinary herb grown throughout Europe and much of Asia the fresh leaves, flowers and stems are typically used to flavour fish and vegetables, in soups and of course to flavour Dill pickles. The dried seeds can be used in a similar fashion, store well and so are available for use year round.

      A very hardy, winter growing annual in Perth and best scratched in directly where it is to grow in autumn or early winter when the weather has cooled down, irrigation is unnecessary. Colder regions may have to resort to spring sowing. The rosette of soft, feathery, glaucous leaves elongates on a stiff hollow stem over the course of the growing season to be topped in spring by branching, flat, umbrella-like heads of soft sulphur yellow flowers. Attractive and lends a little whimsy to any garden.
      The dried seed heads can remain attractive long after the seeds have fallen or been collected.

      Self sows freely in any bare soil that receives copious sunshine. If you can resist eating it all you too can have a self sustaining population.

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