{"product_id":"westringia-zena","title":"Westringia Zena","description":"\u003ch2\u003eWestringia ‘Zena’ (Coastal Rosemary Hybrid)\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is a cultivated form of the Australian native genus \u003cem\u003eWestringia\u003c\/em\u003e, commonly referred to as coastal rosemary due to its fine, needle-like foliage that superficially resembles that of true rosemary (\u003cem\u003eRosmarinus officinalis\u003c\/em\u003e). Despite this resemblance, it belongs to a completely different botanical family, the Lamiaceae, which it shares with many aromatic herbs. ‘Zena’ has gained popularity in landscape design due to its compact growth habit, soft grey-green foliage, and strong tolerance to drought, wind, and coastal exposure.\u003c\/p\u003e\n\u003cp\u003eThis plant is widely used in Australian landscaping, particularly in urban, coastal, and low-maintenance garden schemes. Its durability, neat form, and year-round visual appeal make it suitable for both residential and commercial applications, including mass planting, borders, hedging, and container use.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGeneral Characteristics\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is an evergreen shrub that maintains a dense and rounded structure throughout its life. It is considered a medium-sized shrub, though it can be kept smaller through pruning.\u003c\/p\u003e\n\u003cp\u003eTypical dimensions are as follows:\u003c\/p\u003e\n\u003cp\u003eHeight: approximately 1.5 to 2 metres at maturity\u003cbr\u003eWidth: approximately 1.5 to 2 metres\u003c\/p\u003e\n\u003cp\u003eUnder ideal growing conditions, the plant forms a naturally symmetrical mound, making it particularly desirable for structured landscapes or formal plantings. Compared to other Westringia varieties, ‘Zena’ is moderately vigorous but still controlled enough to maintain a tidy appearance without excessive pruning.\u003c\/p\u003e\n\u003cp\u003eThe foliage consists of narrow, linear leaves arranged in whorls along the stems. The leaves are typically grey-green to silvery, giving the plant a soft, muted tone that contrasts well with darker green plants. The underside of the leaves is often lighter, enhancing the overall silvery effect when moved by wind.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGrowth Rate and Establishment\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is considered a moderate-growing shrub. Its growth rate depends heavily on environmental conditions such as soil quality, sunlight, and water availability.\u003c\/p\u003e\n\u003cp\u003eIn general:\u003c\/p\u003e\n\u003cp\u003eEstablishment phase (first 6–12 months):\u003cbr\u003eDuring this period, the plant focuses on root development. Top growth may appear slow, but this stage is critical for long-term performance.\u003c\/p\u003e\n\u003cp\u003eEarly growth phase (1–3 years):\u003cbr\u003eThe plant begins to increase in size more noticeably, often reaching around 1 metre in height and width within 2–3 years under favourable conditions.\u003c\/p\u003e\n\u003cp\u003eMature size (3–5 years):\u003cbr\u003eFull size is typically achieved within 3 to 5 years. Growth may continue slowly beyond this point, but the plant will largely maintain its form.\u003c\/p\u003e\n\u003cp\u003eIn poorer soils or low-water conditions, growth will be slower but often results in a more compact and hardy plant.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFlowering\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ produces small, tubular flowers that are typically pale mauve, light purple, or white depending on conditions. The flowers are borne along the stems and are not large individually, but they appear in abundance.\u003c\/p\u003e\n\u003cp\u003eFlowering characteristics:\u003c\/p\u003e\n\u003cp\u003eMain flowering period: spring and early summer\u003cbr\u003eSecondary flowering: intermittent throughout the year in mild climates\u003c\/p\u003e\n\u003cp\u003eThe flowers attract pollinators such as bees and small insects, contributing to biodiversity in garden environments. While not grown primarily for its flowers, the subtle blooms add seasonal interest and soften the plant’s appearance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eLight Requirements\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ performs best in full sun but is adaptable to partial shade.\u003c\/p\u003e\n\u003cp\u003eFull sun (recommended):\u003cbr\u003eAt least 6 hours of direct sunlight per day promotes dense growth, compact form, and optimal flowering.\u003c\/p\u003e\n\u003cp\u003ePartial shade:\u003cbr\u003eThe plant will still grow, but may become slightly more open or leggy, with reduced flowering.\u003c\/p\u003e\n\u003cp\u003eHeavy shade:\u003cbr\u003eNot recommended, as the plant may lose density and overall health.\u003c\/p\u003e\n\u003cp\u003eIn coastal or high-heat environments, full sun is typically not an issue due to the plant’s natural adaptation to Australian conditions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWatering Requirements\u003c\/h2\u003e\n\u003cp\u003eOne of the key advantages of Westringia ‘Zena’ is its drought tolerance once established.\u003c\/p\u003e\n\u003cp\u003eDuring establishment (first 3–6 months):\u003cbr\u003eWater regularly to encourage root development. Typically, watering 2–3 times per week depending on soil type and weather is sufficient. The soil should be kept slightly moist but not waterlogged.\u003c\/p\u003e\n\u003cp\u003eAfter establishment:\u003cbr\u003eWatering frequency can be significantly reduced. In most cases, watering once every 1–2 weeks is adequate, particularly in well-drained soils.\u003c\/p\u003e\n\u003cp\u003eIn dry or hot conditions:\u003cbr\u003eOccasional deep watering is beneficial, especially during prolonged drought periods.\u003c\/p\u003e\n\u003cp\u003eOverwatering considerations:\u003cbr\u003eWestringia does not tolerate poorly drained soils. Excess moisture can lead to root rot and reduced plant health. It is preferable to underwater slightly than to overwater.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSoil Requirements\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is highly adaptable to different soil types, provided drainage is adequate.\u003c\/p\u003e\n\u003cp\u003eIdeal soil conditions:\u003c\/p\u003e\n\u003cp\u003eWell-drained sandy or loamy soil\u003cbr\u003eNeutral to slightly alkaline pH\u003c\/p\u003e\n\u003cp\u003eIt can tolerate:\u003c\/p\u003e\n\u003cp\u003eSandy coastal soils\u003cbr\u003ePoor or low-nutrient soils\u003cbr\u003eLight clay soils (if drainage is improved)\u003c\/p\u003e\n\u003cp\u003eIn heavy clay soils, it is recommended to improve drainage by incorporating organic matter or planting on a raised mound.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePruning and Maintenance\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ responds very well to pruning, which helps maintain its compact shape and encourages denser growth.\u003c\/p\u003e\n\u003cp\u003ePruning guidelines:\u003c\/p\u003e\n\u003cp\u003eLight pruning:\u003cbr\u003eCan be done regularly throughout the year to maintain shape.\u003c\/p\u003e\n\u003cp\u003eHard pruning:\u003cbr\u003eCan be carried out if the plant becomes woody or overgrown. It tolerates rejuvenation pruning well.\u003c\/p\u003e\n\u003cp\u003eBest timing:\u003cbr\u003eAfter the main flowering period in spring or early summer.\u003c\/p\u003e\n\u003cp\u003eRegular trimming makes this plant ideal for low hedging or formal shapes. Without pruning, it will naturally maintain a rounded form but may become slightly looser over time.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFertilising\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is not a heavy feeder and generally performs well without excessive fertilisation.\u003c\/p\u003e\n\u003cp\u003eRecommended approach:\u003c\/p\u003e\n\u003cp\u003eApply a slow-release fertiliser once or twice a year\u003cbr\u003eUse a native plant fertiliser that is low in phosphorus\u003c\/p\u003e\n\u003cp\u003eOver-fertilising can lead to excessive soft growth, which may reduce the plant’s natural resilience.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTolerance and Hardiness\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is valued for its ability to withstand challenging conditions.\u003c\/p\u003e\n\u003cp\u003eKey tolerances include:\u003c\/p\u003e\n\u003cp\u003eDrought tolerance: high once established\u003cbr\u003eWind tolerance: excellent\u003cbr\u003eSalt tolerance: suitable for coastal environments\u003cbr\u003eFrost tolerance: moderate (light frosts are generally tolerated)\u003c\/p\u003e\n\u003cp\u003eThese characteristics make it particularly suitable for exposed sites where other shrubs may struggle.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eUses in Landscaping\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is highly versatile and used in a variety of landscaping applications.\u003c\/p\u003e\n\u003cp\u003eCommon uses include:\u003c\/p\u003e\n\u003cp\u003eLow to medium hedging\u003cbr\u003eMass planting for ground coverage\u003cbr\u003eFeature shrubs in garden beds\u003cbr\u003eCoastal plantings\u003cbr\u003eContainer planting\u003c\/p\u003e\n\u003cp\u003eIts consistent form and muted foliage colour make it a useful structural plant that pairs well with both native and exotic species.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSpacing Recommendations\u003c\/h2\u003e\n\u003cp\u003eWhen planting as a hedge or mass planting, spacing is important to achieve the desired density.\u003c\/p\u003e\n\u003cp\u003eFor hedging:\u003c\/p\u003e\n\u003cp\u003ePlant approximately 1 to 1.5 metres apart depending on how quickly coverage is desired.\u003c\/p\u003e\n\u003cp\u003eFor mass planting:\u003c\/p\u003e\n\u003cp\u003eSpacing can range from 1 to 2 metres depending on the scale of the project.\u003c\/p\u003e\n\u003cp\u003eCloser spacing results in faster coverage but may require more pruning over time.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eLongevity\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is a long-lived shrub when grown in suitable conditions.\u003c\/p\u003e\n\u003cp\u003eWith proper care, it can thrive for 10–20 years or more. Regular pruning and good drainage are key factors in maintaining plant health over time.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePests and Diseases\u003c\/h2\u003e\n\u003cp\u003eThis plant is generally low-maintenance and resistant to most pests and diseases.\u003c\/p\u003e\n\u003cp\u003eOccasional issues may include:\u003c\/p\u003e\n\u003cp\u003eRoot rot in poorly drained soils\u003cbr\u003eMinor insect activity such as aphids or scale (rare and usually not severe)\u003c\/p\u003e\n\u003cp\u003eOverall, it is considered a very hardy and reliable plant.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eWestringia ‘Zena’ is a robust, adaptable, and visually appealing shrub suited to a wide range of landscaping applications. It typically grows to around 1.5 to 2 metres in both height and width, reaching maturity within 3 to 5 years. It requires minimal watering once established, thrives in full sun, and tolerates challenging conditions such as drought, wind, and coastal exposure.\u003c\/p\u003e\n\u003cp\u003eIts low maintenance requirements, combined with its neat form and year-round foliage, make it a practical choice for both residential and commercial landscapes.\u003c\/p\u003e","brand":"The Nurso","offers":[{"title":"200mm","offer_id":51570846794024,"sku":null,"price":22.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/6847\/6200\/files\/ChatGPTImageMar28_2026_05_52_10PM.png?v=1774684360","url":"https:\/\/www.thenurso.au\/products\/westringia-zena","provider":"The Nurso","version":"1.0","type":"link"}