On a steep lane above Shek O village, Wah King Garden Centre sells heirloom camellias passed down through three generations. Beyond the standard offerings of mass-market garden centres, Hong Kong holds a trove of secret gardens—specialist nurseries, community growing spaces, and tucked-away temple grounds—that serve as living libraries for subtropical horticulture. For the discerning urban gardener, these havens offer access to rare plant genetics, time-tested cultivation methods, and a direct line to the growers who know precisely which plants will thrive on a shaded balcony or a windswept rooftop.
Unlike the predictable stock of Ixora and bougainvillea found along Prince Edward’s Flower Market Road, these hidden spots supply everything from heritage Chinese camellias to tropical alpine succulents and perennial leafy vegetables. The knowledge residing in these enclaves is as valuable as the plants themselves. Every visit reveals another layer of how to garden successfully in a city where heat, humidity and limited space conspire against the inexperienced.
Heritage Camellias and Orchids at Family-Run Nurseries
Wah King Garden Centre specialises in Camellia japonica varieties rarely seen in the city. Cuttings of ‘Sawada’s Dream’, with its shell-pink formal double flowers, and ‘Hagoromo’, a blush-white semi-double, are propagated by the owner’s family and sold in terracotta pots for around HK$280. The nursery also maintains a small collection of native Hong Kong orchids, including Dendrobium densiflorum, the golden-bloomed epiphyte that clings to rocks in the wild. These plants demand the same conditions that the Shek O microclimate provides: strong indirect light, high humidity, and a gritty, free-draining mix of orchid bark and perlite. For gardeners without a south-facing hillside, Wah King’s staff recommend a blend of one part akadama, one part kanuma and one part pumice—available at Lung Fung Garden Centre in Yuen Long—to mimic the volcanic soils of the camellia’s native habitat.
“A camellia cutting takes three years to flower, but my father taught me that patience is the real skill,” says Wong Tai-ming, second-generation owner. “These plants are like family members—you pass them on.”
Beyond Shek O, similar quiet nurseries operate in the New Territories. Fung Yuen Butterfly Reserve Nursery near Tai Po, though known for its butterfly habitat, sells a curated selection of indigenous shrubs such as Rhododendron simsii (red azalea) and Ilex rotunda, a shade-tolerant holly that underpins many planting schemes. Purchases here directly support conservation work.
Perennial Vegetables and the Community Garden Network
Hong Kong’s community gardens form a parallel network of living grow-houses. The Tung Chung Community Farm, hidden behind high-rise estates on a reclaimed plot, is a working example of subtropical edible gardening. On open mornings, visitors can obtain cuttings of three invaluable leafy perennials that outlast the summer. Gynura bicolor (Okinawan spinach) produces burgundy-backed leaves that thrive in semi-shade; Gynura procumbens (longevity spinach) is even more resilient, rooting from a single node in moist soil; and Alternanthera sissoo (Brazilian spinach) forms a dense groundcover that can be harvested weekly. None of these are regularly stocked by high-street plant shops, yet community gardeners freely share propagules. For a reliable retail source, the weekend plant stalls at Kam Tin Organic Farm (accessible by green minibus from Yuen Long) sell plugs for HK$15–25 each. Prepare a large container with a mix of three parts coco peat to one part worm castings, keep the soil consistently damp, and place in morning sun only—the plants will bolt if overheated.
Similarly, the Ho Man Tin Community Garden in Kowloon is a treasure trove of heat-tolerant herbs. Volunteers cultivate Thai basil (Ocimum basilicum var. thyrsiflora), Vietnamese coriander (Persicaria odorata) and spearmint (Mentha spicata) varieties that have acclimatised to local conditions over decades. These gardens often hold seasonal plant swaps; membership is free but requires a commitment to maintain a small plot. The experience of seeing how these plants are grown communally—under shade cloth, with daily watering—provides a blueprint for balcony growers facing similar exposure.
Microclimate Magic inside Temple Gardens
A different kind of secret garden hides within the walls of the city’s older temples. The side courtyard of the Kwan Tai Temple in Sham Shui Po, often overlooked by visitors heading to the main hall, shelters a collection of ferns and shade perennials that demonstrate how a confined urban space can be transformed into a cool, damp oasis. The key modifiers are a high north-facing wall, a flagstone floor that traps moisture, and a canopy of mature Ficus microcarpa that filters light. Under these conditions, Asplenium nidus (bird’s nest fern) and the crested form Microsorum punctatum ‘Grandiceps’ spread lushly without any supplementary irrigation. Clivia miniata, the Natal lily, pushes up trusses of orange flowers in deep shade—a reminder that many subtropical bulbs perform best when their roots are confined and their leaves receive nothing brighter than dappled light. Gardeners can replicate this by siting large glazed pots against a shaded wall, filling them with a mix of leaf mould and sand, and introducing a layer of living moss. All of these plants can be sourced from the specialist stalls on the upper floor of the Mongkok Flower Market, particularly shop number 27, which stocks several Clivia colour forms from HK$150.
“Temple gardens teach you that shade is not a limitation but a resource,” notes landscape designer and fern collector May Chan. “You can grow plants many believe impossible, simply by understanding the microclimate.”
Look also at the lesser-known garden behind Po Lin Monastery on Lantau, where monks cultivate a collection of Camellia sinensis (tea plants) and Osmanthus fragrans (sweet olive) that perfume the air. While the plants themselves are not for sale, the techniques are instructive: heavy mulching with bamboo leaves and regular applications of diluted soybean pulp fertiliser. A similar organic feeding regimen—using liquid seaweed and fish emulsion from Brighten Florist—will promote flowering in potted Osmanthus on an apartment balcony.
Rooftop Collections of Arid-Land Plants
Beyond the shaded retreats, a new generation of growers is turning industrial rooftops into hidden succulent sanctuaries. In Kwai Chung, a discreet operation known by word of mouth as Elysian Succulents sells mature specimens of Haworthia cooperi var. truncata, Echeveria laui and the miniature Lithops species that demand masterful watering control. The rooftop environment—baking sun, high summer rainfall—forces the grower to use an almost entirely mineral substrate: 90 per cent pum
Elysian Succulents represents a fascinating counterpoint to the shade-loving plants that dominate Hong Kong’s hidden gardens. Its proprietor, a former graphic designer named Kwan Yee-ling, began propagating succulents on her own rooftop in 2018 after becoming frustrated with the floppy, etiolated specimens sold at chain garden centres. Today, her collection comprises over 200 species, many of which are propagated from seed sourced directly from specialised growers in South Africa and Japan. The key to success in a subtropical climate, she insists, lies in the substrate. While many online guides recommend a generic cactus mix, Kwan uses a custom blend of three parts pumice, two parts akadama and one part coarse river sand—all available at Lung Wah Garden Supplies in Fanling. This gritty foundation ensures that water drains within seconds, preventing the root rot that claims most imported succulents within their first Hong Kong summer.
Visits to Elysian Succulents are by appointment only, arranged through a private WhatsApp group. On a recent Sunday, Kwan demonstrated her watering technique: a controlled drip from a narrow-spouted bottle applied only to the soil surface, never the leaves. “Many people kill their Lithops by watering from above—the water sits in the leaf fissures and causes fungal rot,” she explained, using a small brush to clear debris from a pot of Lithops lesliei ‘Green Jade’. She also favours bottom-watering for her larger Haworthia collection, setting pots in a tray of rainwater for exactly 20 minutes every ten days from November to March, then stopping entirely during the wet monsoon months. The discipline required offers a valuable lesson for balcony gardeners tempted to overwater: in a climate where humidity already provides much of the moisture, the grower’s primary task is subtraction, not addition.
