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Provide a bright, indirect location that offers a reliable level of humidity, air circulation and temperature. A position that offers more than two hours of strong direct light must be kept off the cards, due to their susceptibility to sun-scorch. A site within three metres of a north, east or west-facing window, or below a skylight window is the ideal area.
The rule of thumb with Lipstick Plants is to allow the top couple of inches to dry out in between irrigations - once the pot begins to feel light, it's time for another water. Reduce this further during winter to replicate their dormancy period. Whilst in bloom, avoid the use of cold water due to the species' sensitive nature to cold temperatures. Under-watering symptoms include little to no new growth, a much-needed transplant, and drying leaves - these issues are caused by too much sunlight, a much-needed transplant or pure forgetfulness. Over-watering symptoms include yellowing leaves that soon drop off, no or little growth and root rot.
High humidity needs to be empathised greatly. A weekly mist, or introducing a humidity/pebble tray will help replicate its natural habitat in the Brazilian forests. Botrytis petal blight and southern blight are caused when excess moisture (from misting or messy irrigations) is allowed to settle in the cubbyholes of the flowers or vines.
Use a fertiliser high in potassium to prolong its flowers during the summer - an excellent example would be Tomato Feed. Regular fertilisers will still do the job but will favour foliar growth instead. For the rest of the year, houseplant feed or a standard fertiliser can be used for supplementation, at monthly intervals.
Trying to re-bloom a Lipstick Plant is relatively easy, with those that have a cool room without artificial light at night being on the upper-hand. Repotting isn't usually mandatory if you want it to re-bloom - in fact, this may hurt the chances. Only repot every two to three years and after the flowers have elapsed. To get it to bloom during the summer months, think back to its previous dormancy period served in the autumn and winter. The ukhouseplants' acronym, SHORT, will help you through this process.
The following steps should be done in the autumn and winter when Lipstick Plants enter their dormancy.
Be sure to provide a bright location with no direct sun over this period. Although the winter sunlight won't necessarily hurt the plant, you can easily fall in the trap of under-watering, potentially weakening it. In order for the plant to fully become seasoned, avoid the use of artificial lighting during the night.
Reduce irrigations so that the majority of the soil becomes dry. Remember, they should only be watered from the bottom-up as rotting foliage are a common issue with cooler temperatures.
While it's bloom, use a Tomato fertiliser to provide nourishment of potassium. During the dormancy period, only supplement once or twice to carry it through until the following spring, using a general houseplant fertiliser.
This one is to remind you that everything needs to be reduced - especially the temperature.
This is the most significant step; reduce the temperature down by around 5℃ compared to the summertime or place in a room that's around 15℃ (59℉). The drop in temperature should ideally last until the inflorescence finishes blooming, although it can still be transferred into the main house as long as it sits on a pebble tray. You'll be at a significant disadvantage if the ambient temperature is kept constant throughout the year, as Lipstick Plants will only respond with flowers in cooled environments. Never exceed the minimum temperature as it could lead to plant death or yellowed foliage at a bare minimum.
Dry soil is a big issue when cultivating Lipstick Plants. Despite their ability to withstand short-lived droughts, persistent dry spells will considerably weaken the plant, causing shortened blooming times. Be sure to avoid direct sunlight and potentially create a watering-schedule if you're a forgetful gardener.
Green Aphids are also a common issue. These small, lime-coloured critters can easily blend in with the foliage, thus leading to rapid infestations. They are most likely to infest the juvenile growth or the flowers themselves, and can cause mottled lesions. The best way to prevent an attack before it becomes a threat is by keeping the windows and doors shut, with regular pest inspections. For those that have already bitten the dust, click on this link to learn about addressing these issues.
A lack of leaves on the soil’s top could be the product of excess moisture settling on the foliage. Although watering from the top is best, it's recommended to use the bottom-up method if you're a messy waterer. For specimens that have a bare head, improve growing conditions by using this method and increasing the light levels and air circulation. Take vine cuttings to promote a bushier appearance above the soil line - scroll down to 'Propagation for more information. Finally, always remove yellowed or rotten debris from the soil as it could harbour both bacterial and fungal diseases which will continue the plant's decline.
Root rot is a common issue among specimens sat in too dark environments with prolonged soil moisture. Symptoms include rapidly yellowing leaves, mouldy soil, stunted growth and a rotten brown base. Take the plant out of the pot and inspect health below the compost line. If the roots sport a yellow tinge, you're good to go, but if they're brown and mushy, action must be taken immediately. More information about addressing root rot can be found on this link.
Never situate one within four metres of an operating heat source, for instance, a heater or fireplace. Due to the heightened temperature, the plant will soak up far more moisture than those situated in cooler locations, increasing the chance of droughts and browning leaf-edges.
Too much sunlight will lead to sun scorch, with typical signs including browning or crispy leaves, dry leaf-edges, sunken leaves or stunted growth. Although too little light will cause over-watering issues, excess sunlight will be a detriment to the plant as well. If yours has fallen short of this, reduce the amount of the sun considerably and always be mindful of environmental shock (when two locations offer too different growing conditions). Remove some of the affected leaves and increase waters slightly.
As mentioned before, powdery mildew and southern blight are major threats among heavy foliage plants when excess moisture is allowed to sit on compacted foliage. Remove the affected areas and improve the growing conditions by situating the plant in a brighter location and keeping the leaves dry.
There are over one hundred and fifty known species of Aeschynanthus, all of which have distributions in Eastern Asia, such as the Solomon Islands and Papua New Guinea. They're part of the Gesneriad family that holds genera like Streptocarpus, Saintpaulia (African Violets) and Gloxinia. The genus was first classified in 1823 by William Jack, who used the Greek words aischuno, meaning 'to be ashamed of' and anthos referring to its flower that can resemble male phalli.
15º - 26℃ (59º - 79℉)
H1a (Hardiness Zone 13) - Must be grown indoors or under glass all year round. Never allow temperatures to dip below 15℃ (59℉) or permanent damage may occur in the likes of flower loss, stunted growth and blackened or yellowed leaves.
Up to 1m in height (length) and 0.8m in width, with the ultimate height being reached in 3 - 6 years.
Remove yellow or dying leaves, and plant debris to encourage better-growing conditions. While pruning, always use clean utensils or shears to reduce the chance of bacterial and fungal diseases. Never cut through yellowed tissue as this may cause further damage in the likes of diseases or bacterial infections. Remember to make clean incisions as too-damaged wounds may shock the plant, causing weakened growth and a decline in health.
Via Seed or Vine Cuttings
Lipstick Plants will put out flowers during the summer that can last several weeks. The shape of the flowers mostly resembles a red lipstick, which is thanks to the shape of the developing buds. Supplement using a potassium-based feed during the start of spring to encourage the chance of flowers; Streptocarpus Feed is an excellent choice as it holds an ideal blend of both nitrogen (foliar growth) and potassium for flower development.
Repot biannually in spring using a 'Houseplant' or 'Gesneriad' labelled potting mix and the next sized pot with adequate drainage. Lipstick Plants are far better being potbound for several years due to the heightened risk of root rot and repotting-issues (like transplant shock), so only repot if you feel it's wholly necessary - restricted root growth will also increase the chance of blooms, too.
Hydrate the plant 24hrs before the tinkering with the roots to prevent the risk of transplant shock. For those situated in a darker location, introduce an extra amount of perlite and grit into the deeper portion of the pot to downplay over-watering risks. Click on this link for a detailed step-by-step guide on transplantation, or via this link to learn about repotting with root rot.
Keep an eye out for spider mites, mealybugs, aphids, whitefly, root mealybugs, scale & thrips. Typical diseases associated with Lipstick Plants are leaf-spot disease, botrytis, powdery mildew & root rot. Click here for more information about how to identify and address any of these issues.
This plant is classified as poisonous, so if small sections are eaten, vomiting, nausea, and a loss of appetite may occur. Consumption of large quantities must be dealt with quickly; acquire medical assistance for further information.
If you need further advice with indoor gardening, never hesitate to send us a message or leave a comment in the section below. This could be about your own specific plant, transplantation into a bigger pot, pests or diseases, terrarium ideas, & more!