{"product_id":"sun-opener-seeds-heimia-salicifolia","title":"Sun Opener Seeds | Heimia salicifolia","description":"\u003cp\u003e\u003cstrong\u003eAustralian Grown • Organically Cultivated • Traditionally Known as Sinicuichi\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e Standard Pack with approximately 100 seeds or Best Value Pack with approximately 300 seeds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBotanical Name:\u003c\/strong\u003e \u003cem\u003eHeimia salicifolia\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso Known As:\u003c\/strong\u003e Sinicuichi, Sinicuiche and Willow-leaf Heimia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Source:\u003c\/strong\u003e Australian grown from organically cultivated stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Character:\u003c\/strong\u003e Exceptionally fine seed. Pack quantities are approximate because the individual seeds are extremely small.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Type:\u003c\/strong\u003e Bushy perennial shrub with slender willow-like foliage and small golden-yellow flowers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMature Habit:\u003c\/strong\u003e Commonly develops to around 2 to 3 metres under favourable conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sun Opener\u003c\/h2\u003e\n\u003cp\u003eSun Opener is a deceptively delicate shrub with an unusually rich botanical and ethnobotanical history.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHeimia salicifolia\u003c\/em\u003e develops a densely branching habit with narrow willow-like leaves and small golden-yellow flowers carried from the leaf axils. These are followed by rounded dry capsules containing large numbers of remarkably fine seeds.\u003c\/p\u003e\n\u003cp\u003eThe seeds themselves measure only fractions of a millimetre. For that reason, our 100 and 300 seed packs are supplied as approximate quantities rather than represented as individually hand-counted.\u003c\/p\u003e\n\u003cp\u003eFor collectors of unusual flowering and ethnobotanical plants, Sun Opener offers considerably more than its history alone. It is an attractive warm-climate shrub with fine foliage, bright flowers and a compact branching form that responds well to cultivation.\u003c\/p\u003e\n\u003cp\u003eSacred Plants Australia supplies Australian-grown, organically cultivated \u003cem\u003eHeimia salicifolia\u003c\/em\u003e strictly as viable seed for horticultural propagation.\u003c\/p\u003e\n\n\u003ch2\u003eDid You Know?\u003c\/h2\u003e\n\u003cp\u003eHistorical accounts of Sun Opener record one of the most bizarre paired sensory phenomena in ethnobotanical literature. In 1886, Mexican pharmacy student Juan B. Calderón devoted his professional thesis to Sinicuiche while investigating extraordinary reports associated with the plant. Historical descriptions tell of the visual world taking on a pronounced golden yellow cast while ringing bells, human voices and other nearby sounds seemed to come from much farther away than they actually were. Later ethnobotanical and scientific literature continued to record this remarkable pairing of altered colour perception and auditory distance as one of the defining mysteries surrounding Heimia salicifolia.\u003c\/p\u003e\n\n\u003ch2\u003eOrigins \u0026amp; Ethnobotanical History\u003c\/h2\u003e\n\u003ch3\u003eFrom Texas to South America\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eHeimia salicifolia\u003c\/em\u003e is native across a remarkable span of the Americas, extending from south-eastern Texas through Mexico to Jamaica and parts of tropical South America.\u003c\/p\u003e\n\u003cp\u003eAcross that range it occurs in warm environments including seasonally dry landscapes and moist sites associated with streams and waterways.\u003c\/p\u003e\n\n\u003ch3\u003eNames Across the Americas\u003c\/h3\u003e\n\u003cp\u003eThe plant accumulated an extraordinary collection of regional names as people encountered it across different parts of its range.\u003c\/p\u003e\n\u003cp\u003eIn Mexico, Sinicuiche is the best-known traditional name. The \u003cem\u003eDiccionario de americanismos\u003c\/em\u003e traces the word to Nahuatl elements interpreted as “foot” and “twisted”, with related forms including Sinicuil and Sinicuilche. The spelling Sinicuichi later became widely established internationally.\u003c\/p\u003e\n\u003cp\u003eIn Brazil, \u003cem\u003eHeimia salicifolia\u003c\/em\u003e has been recorded as abre-o-sol, literally “sun opener”, as well as erva-da-vida, or “herb of life”.\u003c\/p\u003e\n\u003cp\u003eFarther south, the remarkable name quiebra arado, or “plough breaker”, became associated with the species in Argentina and neighbouring regions.\u003c\/p\u003e\n\n\u003ch3\u003eA Plant Still Yielding Scientific Surprises\u003c\/h3\u003e\n\u003cp\u003eScientific interest in \u003cem\u003eHeimia salicifolia\u003c\/em\u003e did not end with the nineteenth century.\u003c\/p\u003e\n\u003cp\u003eIn 2008, researchers isolated two previously undescribed alkaloids from the species alongside seven compounds already known to science, with several structures confirmed using X-ray crystallography.\u003c\/p\u003e\n\u003cp\u003eIn 2019, another investigation reported six previously undescribed alkaloids together with eighteen known compounds.\u003c\/p\u003e\n\u003cp\u003eMore than a century after the plant first attracted formal scientific attention, researchers were still identifying compounds within it that had never previously been described.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHistorical and ethnobotanical information is provided for educational context only. This product is sold solely as viable seed for horticultural propagation and is not offered for human or animal consumption.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eGrowing Guide\u003c\/h2\u003e\n\u003ch3\u003eHow to Grow Sun Opener from Seed in Australia\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBest Time to Start:\u003c\/strong\u003e September to January. In tropical and reliably frost-free subtropical areas, sowing can extend beyond these months whenever consistently warm propagation conditions and good natural light are available.\u003c\/p\u003e\n\n\u003ch3\u003ePrepare the Growing Medium\u003c\/h3\u003e\n\u003cp\u003eUse a clean, fine-textured seed-raising mix that retains even moisture while still draining freely.\u003c\/p\u003e\n\u003cp\u003eFill a shallow seed tray, propagation cells or small pots and thoroughly moisten the mix before sowing.\u003c\/p\u003e\n\u003cp\u003eAllow excess water to drain, then gently level the surface. A smooth surface is particularly important because Sun Opener seed is exceptionally fine.\u003c\/p\u003e\n\n\u003ch3\u003eSurface Sow the Seeds\u003c\/h3\u003e\n\u003cp\u003eNo soaking or scarification is required.\u003c\/p\u003e\n\u003cp\u003eScatter the seeds thinly across the prepared surface. Because they are extremely small, a folded piece of clean paper can help control the flow while sowing.\u003c\/p\u003e\n\u003cp\u003eGently press the seed into contact with the moist growing medium.\u003c\/p\u003e\n\u003cp\u003eDo not bury the seeds.\u003c\/p\u003e\n\n\u003ch3\u003eProvide Warmth and Light\u003c\/h3\u003e\n\u003cp\u003ePlace the tray in a warm position with bright filtered light.\u003c\/p\u003e\n\u003cp\u003eAim for approximately 22 to 26 °C during germination.\u003c\/p\u003e\n\u003cp\u003eProtect the exposed seed surface from harsh direct midday sun and drying heat.\u003c\/p\u003e\n\u003cp\u003eA clear propagation cover can help maintain stable humidity while the seeds germinate.\u003c\/p\u003e\n\n\u003ch3\u003eMaintain Even Surface Moisture\u003c\/h3\u003e\n\u003cp\u003eBecause the seeds are surface-sown and exceptionally fine, do not allow the upper layer of growing medium to dry during germination.\u003c\/p\u003e\n\u003cp\u003eKeep the mix consistently moist but never saturated.\u003c\/p\u003e\n\u003cp\u003eUse a very fine mister or gentle bottom watering so the seeds and newly emerging seedlings are not displaced.\u003c\/p\u003e\n\u003cp\u003eIf using a propagation cover, provide regular ventilation once germination begins.\u003c\/p\u003e\n\n\u003ch3\u003eGerminate, Pot On and Acclimatise\u003c\/h3\u003e\n\u003cp\u003eSpecies-specific research recorded an average germination time of approximately 9 to 10 days under controlled conditions.\u003c\/p\u003e\n\u003cp\u003eUnder practical home-growing conditions, emergence may occur across approximately 1 to 3 weeks. Continue maintaining warmth, light and even moisture rather than disturbing the growing medium if germination is not immediate.\u003c\/p\u003e\n\u003cp\u003eThe first seedlings are extremely small. Allow them to develop several true leaves before carefully transplanting them into individual small pots containing a free-draining potting mix.\u003c\/p\u003e\n\u003cp\u003eGradually acclimatise established seedlings to stronger light.\u003c\/p\u003e\n\u003cp\u003eIn frost-prone parts of Australia, wait until the risk of damaging frost has passed before planting young plants into their permanent outdoor position.\u003c\/p\u003e\n\n\u003ch3\u003eGermination Notice\u003c\/h3\u003e\n\u003cp\u003eWhile we provide detailed growing instructions, successful germination depends on environmental factors such as season, temperature, moisture, growing medium and care. Because these conditions are outside our control, Sacred Plants Australia cannot guarantee germination outcomes. By purchasing our seeds, you acknowledge and accept these variables.\u003c\/p\u003e\n\n\u003ch2\u003ePlant Care \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLight:\u003c\/strong\u003e Grow in full sun to part shade. A bright, sheltered position encourages strong branching and flowering. Introduce young plants gradually to intense direct sun.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater:\u003c\/strong\u003e Maintain reasonably consistent moisture during establishment and active growth. Do not allow young plants to dry completely, but ensure excess water can drain freely and avoid prolonged waterlogging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSoil:\u003c\/strong\u003e Use fertile, moisture-retentive but well-drained soil. In containers, choose a quality free-draining potting mix with sufficient organic matter to maintain even moisture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeeding:\u003c\/strong\u003e Feed moderately during active growth with a balanced fertiliser or suitable organic amendment. Avoid excessive feeding, particularly while plants are young.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCool Conditions:\u003c\/strong\u003e Sun Opener performs best in warm conditions. Frost can damage or kill back upper growth, although established plants may regenerate from the base. Protect young plants and container-grown specimens during severe cold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Trim as required to maintain a compact, branching form. Remove frost-damaged or weak growth in early spring before strong new growth begins.\u003c\/p\u003e\n\n\u003ch2\u003eShipping \u0026amp; Biosecurity\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eACT\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNSW\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNT\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQLD\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSA\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTAS\u003c\/strong\u003e\u003cbr\u003eConditions apply\u003cbr\u003ePlease verify current Tasmanian small-weight seed import requirements before ordering.\u003cbr\u003e\u003ca href=\"https:\/\/nre.tas.gov.au\/biosecurity-tasmania\/plant-biosecurity\/small-weight-seed-imports\"\u003eView Tasmanian seed import requirements →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVIC\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWA\u003c\/strong\u003e\u003cbr\u003eAvailable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINTERNATIONAL\u003c\/strong\u003e\u003cbr\u003eConditions apply\u003cbr\u003ePlease confirm your destination's import requirements before ordering. International post is available where permitted. Sacred Plants Australia does not provide phytosanitary certificates.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eLast Reviewed: 1 October 2026\u003cbr\u003e\u003ca href=\"\/pages\/biosecurity-import-information\"\u003eBiosecurity \u0026amp; Shipping Information →\u003c\/a\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"Sacred Plants Australia","offers":[{"title":"Starter Pack • 100 Seeds","offer_id":53908026261798,"sku":"SOS-100","price":14.95,"currency_code":"AUD","in_stock":true},{"title":"Best Value Pack • 300 Seeds • Save 33%","offer_id":53908026294566,"sku":"SOS-300","price":29.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1035\/7656\/8102\/files\/sacred-plants-australia-sun-opener-seeds-heimia-salicifolia-flower-hero.png?v=1790747786","url":"https:\/\/sacredplants.com.au\/products\/sun-opener-seeds-heimia-salicifolia","provider":"Sacred Plants Australia","version":"1.0","type":"link"}