Hoya - O
- Ting Ting
- Aug 13, 2021
- 3 min read
Updated: Jan 17, 2022
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Hoya obcordata Hook.f. – E. Himalaya
Hoya oblanceolata Hook.f. – Assam, Sumatera
Hoya oblongacutifolia Costantin – Thailand to S. Vietnam
Hoya obovata Decne. – Indo-China, Sulawesi, Maluku
Hoya obscura Elmer ex C.M.Burton – Borneo to Philippines
Hoya obtusifolia Wight – Indo-China to W. Malesia
Hoya odetteae Kloppenb. – Philippines (Mindanao)
Hoya odorata Schltr. – Philippines
Hoya ofuensis Kloppenb. – Samoa
Hoya oleoides Schltr. – New Guinea
Hoya oligantha Schltr. – New Guinea
Hoya olosegaensis Kloppenb. – Samoa (Savai'i)
Hoya omlorii (Livsh. & Meve) L.Wanntorp & Meve – Pen. Malaysia (Perak), Sumatera, Borneo (Sarawak)
Hoya onychoides P.I.Forst. – Papua New Guinea
Hoya oreogena Kerr – Thailand
Hoya oreostemma Schltr. – New Guinea
Hoya orientalis P.T.Li – Philippines
Hoya ormocensis Kloppenb. – Philippines (Leyte)
Hoya ottolanderi Koord. – Jawa
Hoya ovalifolia Wight & Arn. – SW. & S. India, Sri Lanka
Hoya oxycoccoides S.Moore – New Guinea
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Hoya obovata
Decne.
Hoya obovata foliage. #HoyaObovata
(Photo credit: Katherine Lim from https://www.instagram.com/hoyafreak/ )
Leaves are obovate, thick leathery, to 8 cm long by 7cm wide. Upper surface mid-dark green, often with dull greyish silver flecks or markings, under surface of leaves light green.
Hoya obovata foliage and flowers. #HoyaObovata
(Photo credit: Orchid Hoya SG from https://www.facebook.com/orchidhoyasg/photos/pcb.557057225735157/557055779068635)
Brief notes:
Plant Growth Form: Climber, Vine & Liana Native Habitat: India, Indonesia, Thailand and Fiji.
Preferred Climate Zone: Tropical
Light Preference: Semi-Shade
Water Preference: Moderate Water
Soil Preference: Well draining soil
Propagation Method: Stem Cutting
Pest(s): Sucking Insects
Hoya obovata varigata
Propagation Tips
Rooting in perlite: https://www.facebook.com/groups/891827067940036/posts/1157916771331063/
(Tip from Jess Ong, member of Hoya Singapore)
Materials :- Glass bottle and perlite.
Method: No soil, no bark, no chips. No water in the bottle. Just spray them once or twice a day to keep the perlites moist. No need to immerse perlites in water.
Hoya obscura
Hoya obscura flowers. #HoyaObscura
(Photo credit: Katherine Lim from https://www.instagram.com/hoyafreak/ )
Watch a video of them blooming.
(Video credit: Hong Len G N )
Flowers are borne in clusters of 4 - 5 cm in diameter, with each cluster consisting of 20 - 30 flowers. The flowers have strong spicy fragrance at night. Flowers are pink or cream, pubescent.
Flower Colour(s): Cream / Off-White, Pink
Flower Texture(s): Velvety / Furry / Tomentose
Flower Grouping: Cluster / Inflorescence
Flower Location: Axillary
Flower Symmetry: Radial
Individual Flower Shape: Stellate / Star-shaped
Inflorescence Type: Umbel
Flowering Period: Free-Flowering, After Rain
Flowering Opening Time: Time-Independent
Flower Lifespan on Plant: Several Days
Flower Colour(s) Remarks: Color of inflorescence appears to be dependent on exposure to bright light during the course of development - in cultivated specimens, growers have observed that flowers that developed in full/ deep shade are dull pink, whereas those that developed in bright light/ exposed to some direct sunlight are cream or yellowish in color.
Hoya obscura foliage. #HoyaObscura
(Photo credit: Katherine Lim from https://www.instagram.com/hoyafreak/ )
The leaves are elliptic to obovate, measuring about 4 - 7 cm x 3 - 4 cm, thick with pinnate venation, and has round petiole. The leaf blade has mid-vein and lateral veins cream to yellow. The leaves turn red when exposed to sunlight.
Foliage Retention: Evergreen
Mature Foliage Colour(s): Green
Mature Foliage Texture(s): Smooth
Prominent Young Flush Colour(s): Green
Foliar Type: Simple / Unifoliate
Foliar Shape(s): Non-Palm Foliage (Obovate, Elliptical)
Foliar Venation: Pinnate / Net
Foliar Margin: Entire
Mature Foliage Colour(s) Remarks: Leaves attain reddish tinge when exposed to very bright light or direct sunlight
OVERVIEW
Brief notes: Sunny, moist
Plant Growth Form: Climber, Vine & Liana, Epiphyte
Lifespan (in Singapore): Perennial
Mode of Nutrition: Autotrophic
Native Distribution: Philippines and Borneo (Kalimantan and Sabah).
Native Habitat: Terrestrial
Preferred Climate Zone: Tropical
Light Preference: Semi-Shade
Water Preference: Moderate Water
Propagation Method: Seed, Stem Cutting
Pest(s): Sucking Insects:
Hoya obtusifolia
(image)
Brief notes: From mountain areas + moisture + humidity, sunny
OVERVIEW
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Hoya obtusifolia Green
Hoya obtusifolia Green foliage and flowers. #HoyaObtusifolia
(Photo credit: Orchid Hoya SG from https://www.facebook.com/orchidhoyasg/photos/pcb.557057225735157/557056485735231)
OVERVIEW
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Hoya obtusifolia (white)
(image)
OVERVIEW
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Hoya odetteae
(image)
OVERVIEW
Brief notes: Grows moist but not wet in shade.
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Hoya odorata
Schltr.
(image)
OVERVIEW
Brief notes:
Plant Growth Form: Shrub, Epiphyte
Lifespan (in Singapore): Perennial Native Distribution: Philippines
Preferred Climate Zone: Tropical
Light Preference: Semi-Shade
Water Preference: Moderate Water, Occasional Misting
Propagation Method: Seed, Stem Cutting
Pest(s): Sucking Insects
Hoya onychoides
(image)
OVERVIEW
Brief notes: Sunny
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Hoya ovalifolia
Wight & Arn.
(image)
OVERVIEW
Brief notes: Sunny
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