Creating A Drought Resistant Garden - New Zealand
Upcoming SlideShare
Loading in...5

Creating A Drought Resistant Garden - New Zealand



Creating A Drought Resistant Garden - New Zealand

Creating A Drought Resistant Garden - New Zealand



Total Views
Views on SlideShare
Embed Views



0 Embeds 0

No embeds



Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
Post Comment
Edit your comment

Creating A Drought Resistant Garden - New Zealand Creating A Drought Resistant Garden - New Zealand Document Transcript

  • Creating a Drought Resistant GardenDrought conditions are a fact of life in our changing climate.  Though most of us rely on tankwater, by following some drought-wise garden water tips there are many ways you can controlwater use and not have to give up gardening!When planning and planting your garden, plan for drier periods, and reduce or eliminatewatering requirements by using more drought tolerant plants and better gardening techniquesPractical hints to help your garden survive dry or drought conditions: - Use compost to condition your soil – this will improve the level of nutrients and structure inthe soil and therefore moisture retention and general health of plants to enable them to betterwithstand heat and drought stress. - Fertilise in early spring and avoid fertilizers that will promote rank leafy growth- any softgrowth will not survive the first dry spell and plants will struggle. If your soil is heavy clay thencultivate it deeply and add gypsum to the soil to help prevent it baking hard when dry. - Add Saturaid to improve water retention by 50%! Completely natural and organic – thisstuff is amazing! Renew it in late spring each year - Crystal Rain is a wetting agent that should always be added at planting time for plants thatmay be stressed by dry conditions - Mulch, mulch. mulch! Use mulches that will improve water retention like compost, bark,pea-straw and gravel. Apply mulch before the summer heat dries out the soil and you will find italways stays moist beneath the mulch blanket. Layers of wet newspaper or old woollen carpet,laid beneath your mulch will further increase moisture retention and extend the life of the mulch. - Lawns consume more water than most gardens so limit your lawn area, mow less oftenwhen it’s dry and set the blades on your mower higher to help prevent scorching and browningoff in your lawn. Saturaid can also be used on lawns - And remember – your garden is an investment so buying water to protect that investmentmay well save you money!WateringSo how can you save or recycle water, or use less? 1 / 12
  • Creating a Drought Resistant Garden - Water in the early morning, when there is less heat and wind, so less water is lost toevaporation.  Timers on automatic watering systems make watering very early much easier. - Dont use overhead sprinklers, which may lose over half the water to evaporation, Manualwatering, soaker hoses, or drip systems are much more effective.   Soaker hoses or dripsystems placed near plants provide a slow trickle of water to the root zone.  Cover these hoseswith mulch and lose even less water to the air, - Water deeply and less often rather than for shorter periods more often.  This allows waterto penetrate deeper encouraging deeper roots that are more resistant to drought.  Lawns andbedding plants should be watered to at least six inches deep.  Perennials, shrubs and treesshould be watered to at least 300mm deep.  Use a rain gauge to check - 25ml will wet a sandysoil to a depth of about 300mm. - Water established plants only if really needed and once they begin to wilt.  Manyperennials and woody plants may wilt, and not perform best if dry, but will survive.  This isespecially true if they were healthy and well watered prior to drought conditions. Collecting, Saving Water - Repair leaks in hoses and fittings.  This may be as simple as replacing the washers inhose fittings.  - Collect wasted and "gray" water from your household.  The latter is rinse water fromdishwashers and washing machines.  When adjusting the hot and cold in baths and showers,use a bucket to collect the water that would normally go down the drain before the temperatureis adjusted.  You also can collect and reuse water from dehumidifiers or window airconditioners. - Collect water from downspouts of gutters, or divert these directly into flowerbedsPlant SelectionWhen planning your garden try to use plants that are more drought resistant. There is awonderful selection of beautiful foliage and flowering plants that go into survival mode whenplaced in a hot and dry position.Seemingly contradictory in terms, all these plants will need a little water initially to establish theirroot systems in the soil.  But once established they become the camels of the plant kingdom. 2 / 12
  • Creating a Drought Resistant GardenThe term "xeriscaping" refers to dry climate gardening.  Many people associate this term withdeserts, cacti, and succulent plants but it definitely does not mean "zero-landscaping."Plants for dry conditionsA plants foliage is one key as to where the plant will thrive in nature. - Plants with grey or silvery foliage tend to be very adaptable to the dry conditions ofsummer including Cistus (rock rose), Convolvulus, aromatic Lavenders and Rosemary; Arctotis,the beautiful native daisy bushes -  Olearia, Pachystegia and Brachyglottis and for brilliant, boldeffects, Phlomis. Pachystegias are also adapted to dry, sunny areas because the hairs reflectlight and act like insulation, keeping the plant from overheating - Plants that have small leaves are very efficient at producing food and lose relatively littlemoisture such as Corokia, Pittosporums, Californian Ceanothus and Sophora microphyllia(Kowhai) - Waxy or fleshy leaves, such as those of succulents and cacti are designed to hold water;echeverias, sedums, aloe and dracaenas  - For that tropical look go no further than the New Zealand icon, the cabbage tree (Cordyline australis) or look at palms and yucca. - The abundant selection of Flaxes, Astelias, Coprosma, Libertias, Phormiums and Carexprovide that native flamboyant foliage and effect - Australian banksias and grevilleas; South African proteas, leucospermums andleucodendrons are wonderfully drought-resistant. Many of these are frost tender and perfect forthe milder dry climate of the North. - Wonderful perennials that thrive in drier conditions are structural and spiky Echiumfatuosum, bold and brilliant Arctotis and Hemerocallis - Some shade trees will grow happily once established without needing extra water – andwill conserve water for other plants. Silk trees (Albizzia julbrissin), Lagerstroemia and of courseour own Pohutukawa are good examples that thrive in the northern climateDrought Hardy PlantsThe following plants are commonly known to be drought hardy once established and arereasonably readily available. This list is by no means exclusive 3 / 12
  • Creating a Drought Resistant GardenAcacia (Wattle)A genus of shrubs and trees that tend to be thorny and pod-bearing with distinctive flattened leaves and Anigozanthus (Kangaroos paws)Summer flowering with varied colours from a dull yellow to combinations of green and red or orange. The ArctotisExceptionally long flowering season from spring right through autumn. Adaptable, will grow in very poor  4 / 12
  • Creating a Drought Resistant GardenArthropodium (Rengarenga lily)sun or shade, foliage looks good year round with masses of long stemHappy in dry, poor soils, grows in Small root palmBangalow ball makes it suitable for planting near buildings, paths and in pots. Abundance of greyiiBrachyglottis bright yellow daisy like flowers during summer on a backdrop of grey-green felted foliage Cactus and distinctive plants adapted to arid environments ranging from small and globular to tall and cUnusual Bottlebrushes (Bottlebrush)Callistemons are woody shrubs from 0.5 m to 4 m tall with spectacular flowers that are irresistible to nec  5 / 12
  • Creating a Drought Resistant GardenCarex easy care native New Zealand sedge A hardy Ceanothus (Californian Lilac)Fragrant colourful evergreen shrubs with pretty violet-blue flowers Chinochloa flavicans (mini Toetoe) green, weeping foliage and tall spikes of fluffy white flowers throHardy evergreen native grass with deep Cistus (Rock rose)Compact rounded shrub with grey-green leaves and clusters of varied coloured flowers from spring throu Convolvulus mauritanicusA vigorous evergreen perennial with lavender blue flowers from spring to autumn and soft, gray-green le CoprosmaA large number of species of small leaved or divaricating shrubs in a variety of coloured foliage with sma  6 / 12
  • Creating a Drought Resistant GardenCordyline australis(Cabbage tree)Iconic native plant with tall slender trunk and crowns of strap like leaves and ability to withstand a wide v CorokiaNative evergreens with varied coloured foliage from silver, grey-green through to chocolate, useful for he Cotoneaster dammeri with white flowers and red berries, often used as ground coverClimbing evergreen shrubDracaenas (Dragon Trees)Group of tree-size species with stout trunks and stiff, broad-based leaves, growing in arid semi-desert ar Echium fatuosumExcellent foliage plant with gorgeous big purple-blue flower heads in spring.  7 / 12
  • Creating a Drought Resistant GardenEucalyptus flowering gum trees that establish in poor soils and arid climatesRapid growing Euphorbia glauco (Sea spurge)Coastal plant of ecological importance with a wide creeping habit, foliage varies from pastel green to vivi GriseliniaMedium sized tree with leathery, bright green leaves and tiny green and yellow flowers followed by smal Hibiscus richardsonii with creamy yellow flowers in summer Perennial coastal herb JuniperusThese evergreen feature trees are all very hardy and tolerant of extreme conditionsLagerstroemia (Crepe myrtle) pink or magenta r in late summer.Satiny trunk with flowers in white,  8 / 12
  • Creating a Drought Resistant GardenLavenderSummer blooming perennial shrubs with many small fragrant spikes of flowers that attract bees and con All year – NZ withLibertiacolourIris bright golden strappy leaves and white flowers in spring followed by lasting golden se LiriopeLow growing grass like evergreen ground cover with masses of flower spikes in summerLomandra and almost indestructible, low growing softly weeping foliage with attractive flower spikes in sEvergreen MesembryanthemumProstrate succulent herbs covered with showy pink or white flowers that open during the day Metrosideros (Pohutukawa)Hardy evergreen trees with distinctive brilliant flowers in early summer  9 / 12
  • Creating a Drought Resistant GardenOlearia native shrub or tree with white to cream daisy flowers and leathery or glossy leaves that are wFlowering PittosporumHardy evergreen selection of natives with varied foliage suitable for quick screening or hedging PhormiumNZ Native with wide variety of hybrids in a range of colours and styles Podocarpus (Totara) with thick stringy bark and brownish to bright green leavesTall, slow-growing trees Portulaca (Sun Plant)Trailing annual with sprawling stems , succulent, leaves and  large flowers in an array of bright, beautiful PseudopanaxRemarkable small trees with varied foliage and distinctly different juvenile and adult forms. Native to scru  10 / 12
  • Creating a Drought Resistant GardenRosemaryWoody perennial herb with fragrant evergreen needle-like leaves and tiny lavender flowers Sanvitalia (Creeping Zinnia) zinnia like flowers all summerTrailing annual with tiny yellow SedumLarge number of species of leaf succulents, varying from annual and creeping herbs to shrubs with wate SucculentsA variety  of waterVitex lucens (Puriri)green glossy palmate leaves and large colourful tubular flowers in winter. Very impNative tree with dark  11 / 12
  • Creating a Drought Resistant GardenWestringia brevifoliashrub with white flowers, dark green foliage  and a covering of short hairs on new gEasily grown shapely Xeronema callistemon (Poor Knight’s Lily)Stunning slow growing plant with fans of flax-like leaves and striking red flowers on tall stems in spring  better than most.  this African HardiesAnd by categorySouth is a paws) plants (by no means exclusive) that tolerate drought conditionsAustralian and – grass)list ofAnigozanthus (Rengarenga lily)Leucadendron(KangaroosBanksias and flaxes (Mini toetoe)Callistemon flavicansEucalyptus (MondoGrevilleas Iris)Leucospermum Daisy)Proteas (NZ TreeWestringia insignis (Marlborough Rock Daisy)Evergreens (Totara)JuniperusGrasses richardsoniiCarexLucens (Puriri) (Poor Knight’s Lily)Chinochloa callistemonLiriopeLomandraOphiopogonPhormiumNativesArthropodiumCoprosmaCordylineCorokia and bushesGriselinia (Californian Lilac)HibiscusLibertiaMetrosiderosmauritanicusOlearia(Rock Rose)Pachystegia greyiiPittosporum (Crepe myrtle)PodocarpusPseudopanaxVitex fatuosum (Sea Spurge)Xeronema glaucoPerennials coronarius - MockorangeArctotisCoreopsis and CactiGeraniumHemerocallisLavenderPhlomisShrubs PalmBrachyglottisCeanothusCistusConvolvulusCotoneasterEchiumEuphorbiaLagerstroemiaEricaPhiladelphusSucculentsMesembryanthemumPortulacaSedumTropicalsBangalowDracaenasYuccas 12 / 12