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Many of us remember the dense leaf and star - influence flowers of the Hoya industrial plant sit in a window at grandma ’s sign of the zodiac .
The most common Hoya varieties and the one most often seen and grown as a houseplant isHoya carnosaandHoya carnosa variegata .

Hoya Plant with its flower clusters and star shaped blooms | Nikilev-DepositPhotos
The thick , waxy ellipse - shape leaves of green are rimmed with ruddy and white . The waxen texture of the leaves earns it the soubriquet “ variegate wax works . ”
Hoya Plant History
The popularity of the name “ Hoya ” hail from Thomas Hoy ( 17 – 1821 ) , nurseryman to the Duke of Northumberland . Hoy was the first to bring this superb tropic industrial plant into prominence .
Native to southerly India , this works is extremely prized and the subject of caption .
Hoya plants are from the Asclepias ( milkweed ) family . They are found throughout eastern Asia and Australia .

The accurate number of Hoya flora species is a mystery . Bailey ’s Standard Cyclopedia of Horticulture estimated 100 specie . heel at the end of the article are over 550 recognize specie .
Hoya Flowers Exquisite Creations
In baskets or a sunny window , the foliage of Hoya plants is unusually decorative . Their late spring and summertime porcelain and flowers are extremely prized .
Some consider Hoya flower among the most exquisite foundation of nature . They appear forge from ivory or porcelain , with glimmer centerfield of ruby and amethyst . The new flowers of Hoya carnosa carry a barely obtrusive , delicate , elusive , sweet fragrance .
The waxen ball of five - point double genius is geometrically perfect . This give way the Hoya works bloom an unreal aspect . Those see Hoya carnosa for the first time are pleasantly surprised to find it is real .
Unless they are in a hang basket , it ’s recommended to insert a trellis into their container , allowing the plants to rise and maturate .
Commonly Grown Hoya “Species”
Hoya australis – has Brobdingnagian , waxen , inscrutable - green waxy leaves measuring well-nigh four column inch across , and speckled with atomic number 47 . It is a vigorous , strong raiser , the vining kind with distinctly fragrant efflorescence , pink with ruddy jacket .
Hoya bandaensis – Sturdy plant with deep - green glossy leave of absence .
Hoya bella – is a handsome gnome , low grow metal money with slender upright branches that wilt down as they maturate ; non - climber , small leaves are duncical , dark green ; flower are white with purple centers . An sure-enough favorite .
Hoya carnosa – Old - timekeeper with glistening dark - dark-green ellipse - pointed leaves , propagate spray of faint pinkish flowers centered with a cherry star - crown . This one climb best by fall off its ethereal roots into a poriferous support like a moss pole .
Several variations of Hoya carnosa are available : the cultivar ‘ Exotica , ’ has light green farewell focus on with cream , sometimes pink - tinct . Another isHoya Krimson Queen .
Hoya carnosa variegata , the leaf are irregularly inch with creamy white , touched with garden pink in sun .
Hoya Compacta – also known as Hoya carnosa compacta , features distinct , curl foliage define it aside from thecarnosa plantfrom which it come up .
Hoya coronaria – is a climbing iron , not widely available , with waxy provide that re - curve and are hairy to a lower place . It has pallid stinker - chickenhearted flowers with red spots .
Hoya curtisii – a slowly - originate miniature succulent type , trailing repeated vine hoya hailing from the jungles of Malaysia , Thailand , and the Philippines .
Hoya imperialis – Stems and leaves dusted with down , gross profit loop ; large ruddy flowers with creamy center .
Hoya kentiana – has beautiful leafage and does n’t bloom often , but when it does , the fragile , fragrant blossoms are well worth the waiting .
Hoya Kerrii – Sweetheart Hoya , a slow - grow vine with affection - shaped leave .
Hoya keysi – has thick , close - jointed stem turn and operose , grizzly - green leaves covered with down , off - white bloom , a red groundwork .
Hoya Krimson Queenor Krimson Princess – new leaves are pinkish or white . The waxy leaves are dense and fleshy with a rounded cornerstone .
Hoya lacunosa – blossom with a rich , cinnamon scent appear from bound through dip .
Hoya latifolia ( cinnamonum ) – eggs - mould coppery leave with paler veins .
Hoya linearis – long tendrils covered with near , slenderly furred leave-taking .
Hoya longifolia shepherdi ( angustifolia ) – Slender leaves indent at the center vena so they ’re almost fold ; frail display of white heyday accented with bright wine .
Hoya macrophylla variegata – mouse species with light - vein , copper - green leaves white flowers .
Hoya motoskei – Free - flowering vine ( considered the true Hoya carnosa ) has elliptical leaves of lighter green unequally speckle with silver , with clusters of pink - white-hot flowers with maroon center .
Hoya multiflora – a stout , climbing plant with big leathery leaf and wan yellow center ; ‘ Silver Leaf ’ is a variety of Japanese rose with dark green leaf mottle with silvery pink . ; red stems ; haired flowers the color of vintage wine , with a crown of silver - pinkish stars .
Hoya obovata – lovely lead - shaped blooms are white to pale purple with pinkish or cherry-red centre .
Hoya publicalyx – A fast - grow , rambling vine with farsighted , narrow , glossy leaves . The common name ‘ Pink silver grey ’ comes from the production of a protective paint called Anthocyanin .
Hoya wayetii – attractive foliage that produces sweet - smelling bunch of mauve bloom in spring .
Hoya Plant Care: Questions and Answers
Question : Is The Hoya Plant Poisonous To Humans ?
resolution : Read our article – Are Hoya Plants Toxic ?
Related : Hoyas are one of the House Plants Safe for Cats ?
What To Do When Your Hoya Plant Is Not Blooming?
Question : I have an 8 - year - old HoyaHindu rope plantvine , growing long climbing vines but never flowers . What can I do to make it produce flowers?HB , Minnesota
Answer : Many family Hoya growers can not get their sweetheart flora to flower . Hoya plant flourish best in bright indirect light , in humid air , with ample wet at the root . But Hoya plant demand a break .
More on : Hoya light needs here .
During wintertime , keep the plants cool , 50 ° degrees Fahrenheit , and rather dry . continue high temperature , plant food ( liquid ) , and moisture promote leafage and stalk ontogenesis and prevent the formation of prime bud .
After the buds are set , you’re able to increase the temperature again slightly .
Hoya Plant In Soil Not Flowering, Long Cutting Growing in Water Does Flower – Why?
Question : I have two plant of Hoya motosekei . The original industrial plant is growing in soil . I took a long cutting and take root it in a glass of piss . It is still uprise in the weewee , sit on the window sill .
The flora in the glass of water blossom . The one in the territory does not . Do you have any idea why ?
Answer : The first important item to commend is that the Hoya heyday only “ shows up ” on long shoot . second , the wax industrial plant bloom will do best when placed next to the glass on the windowpane sill as well .
in person , I would pot up the blooming plant in well - draining ground like an African violet pot sensitive . Place both plants in the windowpane , keep them well watered , and next outflow , you should see more blooms .
Full List Of Hoya Species
Below is a tilt of 557 Hoya plant life character of hoyas metal money , subspecies , and varieties recognized by The World Checklist of Selected Plant Families atKewas of September 1 , 2017 .
Family : AsclepiadaceaeCommon Name : Wax Flower PlantsOrigin : Indonesia , New GuineaLight : Medium light , no verbatim sunlight , Bright ignitor ( some variety)Temperature:60 ° – 80 ° degrees Fahrenheit . Can tolerate 55 ° degrees Fahrenheit without damage . urine : Allow the surface of the potting mixture to dry out out between wateringsHumidity : High Humidity ( ideally around 60%)Fertilizer : employ melted houseplant fertiliser every 2 months during the growing seasonSoil : Potting medium with good drainagePests : mealy bug , Aphids , Plant Scale , Spider Mites – use Neem oil color for control