Hoya mitrata 'Splash' Ø10.5cm

Hoya mitrata 'Splash' - A rare, myrmecophytic collector's Hoya from the tropical forests of Borneo and Southeast Asia, prized for its large, thick, ovate leaves generously splashed with metallic silver. Produces two distinct leaf types - including the famous ant-sheltering 'cabbage' clusters - plus clusters of distinctive crown-shaped flowers with waxy white coronas and reddish-purple centres. Intermediate care; rewards patience with an appearance unlike any other Hoya. Not toxic to pets! Growth and development Hoya mitrata is a twining, epiphytic climber with a moderately vigorous growth habit once established. Stems are slender but firm, reaching up to 1.5 metres in length with support. The distinctive dimorphic leaf arrangement means the plant looks architecturally interesting even as a young specimen - the clustered domatia leaves creating textural variety alongside the larger, silver-splashed foliage leaves. Growth rate is moderate; this species requires more patience than beginner Hoyas like lacunosa or pubicalyx, but rewards it with a truly singular appearance. It performs well on a trellis or hoop, or can be allowed to trail from a hanging basket where the large, silver-spotted leaves create dramatic cascading effect. Cuttings can be slow to root and establish, so new growers should expect a settling-in period before rapid growth begins. Care Requirements: Light: Bright, indirect light is essential - both for overall vigour and for maintaining the full intensity of the silver splash pattern. In adequate bright light, the silver markings shimmer and intensify; in lower light, they fade and contrast diminishes. A position near a bright, filtered window is ideal. Morning sun is tolerated well and can enhance silver expression; harsh afternoon sun risks leaf scorch. This species is somewhat less shade-tolerant than many Hoyas - consistent bright light is not optional for best results with the 'Splash' cultivar. Water: Allow the top half of the substrate to dry out between waterings before watering thoroughly. Hoya mitrata is moderately sensitive to overwatering - soggy soil leads quickly to root rot. The thick, leathery leaves store some water, giving the plant reasonable drought tolerance for brief periods, but consistent moisture management matters more here than with more forgiving species. Water less frequently in autumn and winter. Always use room-temperature water; avoid cold water shocking the roots. Never allow the plant to stand in stagnant water. Soil: An airy, fast-draining epiphytic mix is essential. A blend of orchid bark, perlite, and coco coir provides excellent drainage while retaining just enough moisture. Standard orchid mix or a quality cactus mix amended generously with perlite works well. This species has evolved on tree bark and rock faces where roots experience regular air circulation - avoid any dense, peat-heavy medium that retains moisture. Terracotta pots aid drainage and are preferable to glazed ceramics for this species. Temperature: 18-27°C is the ideal range, with optimal growth between 20-25°C. This is a strictly tropical species that does not tolerate cold: avoid temperatures below 13-15°C and protect from cold drafts, air conditioning vents, and winter window chill. Consistency of temperature encourages steady growth and supports flowering. Suitable for USDA zones 11-12 outdoors; must be grown indoors in temperate climates. Humidity: 50-80% relative humidity produces the best growth, most vibrant silver expression, and supports overall leaf health. This species appreciates higher humidity more than some easier Hoyas. Average household humidity (40-50%) can be tolerated if watering is careful, but a humidifier or grouping with other plants significantly improves performance. Good air circulation remains important to prevent fungal issues - do not mist leaves directly. Feeding: Apply a balanced liquid fertilizer at half strength every 4-6 weeks during the active growing season (spring through summer). A low-nitrogen, bloom-boosting formula can encourage flowering on established specimens. Do not fertilise in autumn and winter. Avoid salt build-up from over-fertilisation by flushing the substrate with plain water occasionally. Fresh potting mix provides adequate nutrients for the first 2-3 months after repotting. Botanical Info: Family: Apocynaceae (subfamily Asclepiadoideae) | Genus: Hoya | Species: Hoya mitrata Kerr (1940) | Cultivar: 'Splash' (silver-splashed foliage selection) | Synonyms: Hoya wallichiana Decne. (1844), Hoya darwinii Loher (1910) | Common Names: Crown Hoya, Mitre Hoya, Ant-Plant Hoya | Type: Epiphytic / Lithophytic Twining Climber | Native Range: Southern Thailand, Peninsular Malaysia, Sumatra, Borneo | Zone: USDA 11-12 (indoor cultivation in temperate climates) | Flowering: White corolla with creamy-yellow tips, erect waxy white corona with reddish-purple inner lobes, 8-25 per umbel, mildly sweet-scented, summer (sporadic) | Growth Rate: Moderate |