Please note : These are non-exhaustive tips , since each plant will react differently depending on its environment. If your plant is doing very well and your maintenance does not follow this sheet to the letter, don't change anything . Pay attention to the moods of your plants first and foremost!
Hoya Australis maintenance sheet:
It will have difficulty with hard water
It behaves like a succulent
Up to 5 m (if staked )
Family: Apocynaceae
Origin: Australia
Rapid growth
Exposure : Bright – no direct sun, except possibly early morning or late afternoon
Flowering : from May to October, white flowers and red/pink heart, in a bright location. Fragrant, I read jasmine. The flowers will always come out on the same peduncles so do not cut them
Mist : from time to time, to clean it (if it is rainwater, otherwise watch out for traces of limescale). Do not wet the flowers. Be careful, the water placed on the foliage must be allowed to dry between two mistings (risk of fungal diseases). In winter in particular, it is not necessary below 18°C. Namely, misting is not used to increase humidity for more than a few minutes. For that :
Humidity : It will appreciate the company of other plants. You can place it on a layer of clay balls with a bottom of water. The best thing is to offer it a humidifier or a greenhouse obviously.
Watering in spring/summer : moderately once every 7-10 days, the substrate must be dry on a knuckle.
Watering in autumn/winter : moderately, wait until the substrate is dry. The leaves will be a little thinner when it needs watering. Don't wait for them to dry out either.
Temperature : Ideal between 18-22°C. Do not drop below 16°C. In winter, in a room around 15°C. In very hot summers, it will need to be soaked: place the entire terracotta pot in water. You can take it outside and bring it in if the nights are cool.
Repotting : In April every two to three years, if the plant is cramped (roots sticking out)
Soil : you have several possibilities: a mixture of cactus soil, orchid substrate and perlite. Or a mixture of peat, coconut husk and perlite. Or, only pozzolan, or clay balls. Or even lechuza pon, found online. Prefer a terracotta pot to drain excess water
Pruning : As soon as the leaves become small and spaced, to allow it to conserve its energy, it would be better to cut above the almost bare stems
Liquid fertilizer : I read that it was not necessarily necessary but you can offer tomato fertilizer (or at least rich in potassium) from April to September every two weeks, then stop completely. Useless if the potting soil is recent and already contains fertilizer (wait at least one month). Liquid fertilizer should always be applied to previously watered soil. To encourage flowering, you can offer it a fertilizer rich in phosphorus.
Cuttings : in spring, you can cut hoyas in pozzolan, at 24°C. Cut below a node that has aerial roots
Concerns:
-Its leaves turn yellow and fall: soil too dry or too wet. Adjust watering. Otherwise, see here .
-Its leaves soften: lack of water or cold
-Its leaves dry out in places: it probably receives too much light or not enough water. It can also be due to a lack of humidity
-The leaves dry out : air too hot and dry
-If the leaves are deformed : stress during growth; often during movement or a substrate that is too heavy. It may also be a room that is too cold
-If you don't have flowering : lack of light or fertilizer
Sensitive to red spiders and mealybugs
Namely: Non-toxic. Very sensitive to excess water because its leaves are reserves. She hates being moved. Its stems, which grow without leaves, are made to hold on: they will produce leaves later, or die.
There are many cares and tips that generally apply to almost all indoor plants , such as avoiding drafts, draining the substrate, avoiding installing near heat sources, avoiding direct sunlight ... To find out about them, I advise you to read my article Basic plant advice sheet . Otherwise, in general, the articles on the Advice page.
It is a climbing plant, but also drooping. See Drooping Plant
Other varieties: see Hoya
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