THE JOY OF GROWING IN THE TROPICS

An increasing number of plant collectors and enthusiasts are urban dwellers,
living in the typical high-rise condominium and apartment blocks flourishing
the city skyline. Spurred by the pandemic, people are attempting to reconnect
with nature through the nurturing of plants

Plants, text and images by Justin W. Khoo

Humans have been seeking out connections with the natural world for centuries. The way we perceive nature shapes the way we engage with it. Driven by our obsession, plants have been collected and cultivated not only as a source of food and building material but also as possessions. Historically, plant hunting expeditions to the far reaches of the world may have started the international trade and exchange of plants but the steady progress of horticultural technology and the subsequent taming of plants through cultivation created the ‘house plant’ as a ubiquitous object, commonplace in everyday living.

House plants have become a commodity that is now actively traded and exchanged throughout the world. An exotic Anthurium that would have originated from the misty depths of the Amazonian cloud forest can now be admired in an air-conditioned living room of a 50-storey condominium in downtown Kuala Lumpur. Although the cheapening of plants through mass propagation techniques such as tissue culture has made them more accessible to people, it has relegated some plants into seasonal decorative objects that are part of the throw-away culture.

Here in Malaysia, we are blessed with a tropical climate in which a good variety of plants can be grown with great success. We need to understand some of the cultural requirements of a plant in order for them to fully thrive. Ideally, under our care, we would be able to provide the optimal conditions that would mimic a plant’s native habitat which it has evolved to grow in.

An increasing number of plant collectors and enthusiasts are urban dwellers, living in the typical high-rise condominium and apartment blocks flourishing the city skyline. Spurred by the pandemic, people are attempting to reconnect with nature through the nurturing of plants. City living should not be a hindrance to the keeping of plants. Although it may present some challenges, it forces the inhabitant to analyse their domestic setting and choose the plants that would be most suited to growing in that particular area. It is important to note the direction a room or balcony faces, the amount of indirect or direct sunlight it receives, whether it gets rained on and if it has good air circulation.

As of late, the notion of ‘rare’ plants as objects of desire have come to light. But what defines a ‘rare’ plant? Are they the ‘Critically Endangered’ plants as defined by CITES (the Convention on International Trade in Endangered Species)? Or more often, they are plants whereby the demand for them is outstripping supply, creating a scarcity in the market and driving up its prices. While many common plants can be picked up from a plant nursery or market, these ‘rare’ ones are not as easily acquired or readily offered, thus creating a market for specialist plant suppliers and a burgeoning community of plant addicts. With some knowledge and patience, these less common plants can be just as satisfying to grow and even with relative ease. A few of these exotic plants which are rewarding to care for are highlighted below:

Hoya cucullata
HOYA SP. is a great epiphyte to grow as well, and what is best about them is that many of them are native to and around the region of Malaysia. They are excellent for growing as hanging plants as in nature they grow amongst tree trunks in search of a place to grip onto for access to sunlight. They come in assorted leaf shapes and patterns and occasionally reward the grower with a cluster of waxy blooms (hence their common name: Wax plants), most of which have a sweet fragrance. Best grown in our climate in an airy media like coconut chips which allow it to retain some moisture without overwatering.
Hoya caudata Sumatra
EPIPHYLLUM SP. is a type of epiphytic jungle cacti. (Epiphytes are plants that grow on the surface of another plant. They are not parasites and do not pose a threat or derive nutrients from the host plant). Pictured is Epiphyllum guatemalense monstrosa which is a compact plant well-suited to growing in a pot with a very coarse media of bark, pumice and perlite, whereby the water can run through freely. They should be allowed to dry out in between waterings to prevent root rot. They flower infrequently but their short-lived blooms are fascinating as they tend to open at night time and fade by the next morning.
Haworthia cooperi
HAWORTHIA SP. is a group of succulent plants particularly suited to growing on brightly lit balconies. These space-saving slow-growing plants feature jewel-like leaves which catch the sunlight (pictured Haworthia cooperi). Haworthias need to be grown in a succulent growing media which is usually a gritty mixture of sand, pumice and lava rock. Like most succulents, they should be protected from our tropical rain as excessive moisture is detrimental to the plant and thus should only be watered sparingly when completely dry.
Epiphyllum guatemalense monstrosa
ALOE SP. should be familiar to most people. While we know the common Aloe vera which is grown as a medicinal plant, there is an array of other plants within the same Aloe genus which are highly decorative and a joy to grow. Hybrids such as Aloe ‘Christmas Carol’ (pictured) feature unique leaf colouration. Being sun-worshippers, they enjoy as much direct sunlight as possible. Their bright flowers that emerge from the centre rosette are a bonus as they stand proud of the plant and open in succession. Again, as a variant of succulents, they must be watered sparingly in our humid climate and grown in a loose, gritty growing media.
Brassavola cuculata
Aloe Christmas carol
ORCHIDS are an extremely popular group of plants oftentimes bought in bloom for decoration and then discarded after they fade. A good practice to grow an orchid plant past its bloom is to carefully remove the plant from its growing vessel and media and tie them to a branch or trunk of a tree to provide it with a surface to grow onto and some dappled shade. Except for some, most orchids are epiphytes and growing them in this way would allow them a chance to re-bloom. They can also be grown mounted to a piece of wood and hung up in a dwelling. This resembles their growth on a host tree while allowing the flexibility for them to be relocated. Pictured is the spidery flower of the diminutive Brassavola cucullata that is grown attached to a piece of driftwood.
Philodendron tortum
TILLANDSIA SP. is a group of epiphytic plants belonging to the Bromeliad family. Also typically called ‘Airplants’, they are unique in that they obtain their water and nutrients through their leaves and only use the roots as an anchor to the host plant. The more silvery the appearance of the Tillandsia, the more direct sunlight they require to grow. They are watered by simply misting the leaves or dunking the entire plant in water. It is crucial to give them plenty of good air circulation to thrive. They are well suited to be grown on a breezy and sunny balcony rather than in an enclosed room. One of the most sought after varieties is Tillandsia sxerographica (pictured), a robust air plant that grows to a considerable size prized for its sculptural appearance.
Alocasia azlanii

ANTHURIUMS, PHILODENDRONS AND ALOCASIAS have become extremely coveted plants by collectors. All are from the Araceae family of plants prized for their diverse leaf forms, colour and growth habit. The demand for them may have pushed up their value; they are still highly sought after. Except for a few which originate from the cool, humid cloud forests of South America, Anthuriums and Philodendrons are well-adapted to our lowland tropical climate. It is important to know where the individual species hails from to ensure its suitability for growing:

ANTHURIUM RADICANS X DRESSLERI (pictured) is a hybrid with stunning heart-shaped pebbled leaves with a sleek sheen. Unlike other Anthuriums commonly grown for their flowers, this hybrid is cultivated for its showy foliage. They do well in a media of pumice and coconut chips which maintain a good amount of humidity while preventing it from being waterlogged. As they are understory plants, they should be grown in indirect light to prevent the leaves from scorching.

Justin tree-hugging Tillandsia duratii d

PHILODENDRON TORTUM (pictured) on the other hand is an example of an unusual plant from its genus. It contrasts from other Philodendrons with its skeletal shaped leaves which at a glance may look more palm-like. As a vining epiphyte, they achieve their potential when given a trunk or moss pole to clamber onto, producing larger leaves. When grown as a climbing plant outdoors, they can be given ample amounts of water.

ALOCASIA AZLANII (pictured) is a recent discovery that has made its way into the horticultural world. Native to Borneo, this Alocasia has stunning waxy deep green leaves with iridescent red venation. They can be slightly challenging to grow as they are sensitive to overwatering and pest pressures. Best grown in a highly aerated media like coarse pumice with some coconut chips and to avoid overly wet and soggy soil. They should be monitored frequently to prevent the attack of pests, particularly spider mites.

Anthurium radicans x dressleri
Understanding the origin and natural habitat of a plant informs us of how we can attempt to emulate their growing conditions in the wild. Even the most seemingly self-sufficient plants, when given proper care and attention can flourish. It is also important to note that the environments our plants are grown here in Malaysia vary immensely from the temperate conditions of the Western world and therefore the care tips and cultural requirements too will differ significantly, as our scorching sun and higher humidity and temperatures will dictate what we can or cannot grow. While this may sound daunting, there is a thriving local community of plant hobbyists that can be connected with on social media platforms, with people who are more than willing to share their knowledge of plant care and culture experiences. The sharing of this awareness will undoubtedly aid in one’s comprehensive journey of plant parenthood.

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