PINK HIBISCUS

Hibiscus rosa-sinensis, known colloquially as Chinese hibiscus, China rose, Hawaiian hibiscus, and shoeblackplant, is a species of tropical hibiscus, a flowering plant in the Hibisceae tribe of the family Malvaceae, native to East Asia. Hibiscus rosa-sinensis is a bushy, evergreen shrub or small tree growing 2.5–5 m tall and 1.5–3 m wide, with glossy leaves and solitary, brilliant red flowers in summer and autumn. The 5-petaled flowers are 10 cm in diameter, with prominent orange-tipped red anthers. Numerous hybrids have been developed in a variety of flower colours, such as this fine pink specimen.

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BOUGAINVILLEA

Bougainvillea in the Nyctaginaceae family is a genus of thorny ornamental vines, bushes, and trees with flower-like spring leaves near its flowers. Different authors accept between four and 18 species in the genus. They are native plants of South America from Brazil west to Perú and south to southern Argentina (Chubut Province). Bougainvillea are also known as Bugambilia (Mexico).

The vine species grow anywhere from 1 to 12 m tall, scrambling over other plants with their spiky thorns. The thorns are tipped with a black, waxy substance. They are evergreen where rainfall occurs all year, or deciduous if there is a dry season. The leaves are alternate, simple ovate-acuminate, 4–13 cm long and 2–6 cm broad. The actual flower of the plant is small and generally white, but each cluster of three flowers is surrounded by three or six bracts with the bright colours associated with the plant, including pink, magenta, purple, red, orange, white, or yellow.

Bougainvillea glabra is sometimes referred to as "paper flower" because the bracts are thin and papery. The species here illustrated is Bougainvillea spectabilis. The first European to describe these plants was Philibert Commerçon, a botanist accompanying French Navy admiral and explorer Louis Antoine de Bougainville (hence the generic name), during his voyage of circumnavigation, and first published for him by Antoine Laurent de Jussieu in 1789. It is possible that the first European to observe these plants was Jeanne Baré, Commerçon's lover and assistant whom he sneaked on board (despite regulations) disguised as a man (and who thus became the first woman to circumnavigate the globe).

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BILLBERGIA

Billbergia is a genus of flowering plants in the family Bromeliaceae, subfamily Bromelioideae. The genus, named for the Swedish botanist, zoologist, and anatomist Gustaf Johan Billberg, is divided into two subgenera: Billbergia and Helicodea. They are native to forest and scrub, up to an altitude of 1,700 m, in southern Mexico, the West Indies, Central America and South America, with many species endemic to Brazil. They are rosette-forming, evergreen perennials, usually epiphytic in habit, often with brilliantly coloured flowers.

The cultivar shown here is Billbergia 'Muriel Waterman' that was hybridised by the great American collector and enthusiast, Mulfor Foster, and introduced in 1946. The stout tubular rosette, is about 7.5 cm in diameter, opens out to a funnel at the top of some six to eight leaves. These are rose-maroon with transverse silver bands, making it one of the most colourful foliage billbergias. The showy flower spike consists of long pink bracts and striking blue flowers.

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CAPE PRIMROSE

A popular house plant, Streptocarpus, is an Afrotropical genus of flowering plants in the family Gesneriaceae (the Gesneriads). The genus is native to Afromontane biotopes from central, eastern and southern Africa, including Madagascar. The flowers are five-petalled, salverform tubes, almost orchid-like in appearance, and hover or arch over the plant. In the wild, species can be found growing on shaded rocky hillsides or cliffs, on the ground, in rock crevices, and almost anywhere the seed can germinate and grow.

For the home, there are now many hybrids of various colours and forms available. The genus is defined by having a spirally twisted fruit (from Greek via Latin, where strepto = twisted, carpus = fruit - Greek: Στρεπτόκαρπος), although this character is also found in some other Old World genera of Gesneriaceae. Although generally referred to simply as "Streptocarpus", or "Streps", the common name for subgenus Streptocarpus is "Cape Primrose", referring to the nativity of several species to South Africa and their superficial resemblance to the genus Primula. The common name for subgenus Streptocarpella is "Nodding Violet".

There are a few odd Asian species of Streptocarpus that however do not belong in the genus. Molecular systematics has shown conclusively that they are not true Streptocarpus and should be placed in another genus. DNA studies have shown that, despite not having a twisted fruit, the genus Saintpaulia (African Violets) evolved from within the Tanzanian Streptocarpus subgenus Streptocarpella. This particular hybrid with the striking dark blue flowers is "Anderson's Crows' Wings".

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BUTTERFLY GINGER

Hedychium is a genus of flowering plants in the ginger family Zingiberaceae, native to lightly wooded habitats in Asia. There are approximately 70-80 known species, native to Southeast Asia (Thailand, Malaysia, Indonesia, the Philippines, etc.), southern China, the Himalayas and Madagascar. Some species have become widely naturalised in other lands (South Africa, South America, Central America, the West Indies, and many of the islands of the Pacific, Indian and Atlantic Oceans) and considered invasive in some places.

The genus name Hedychium is derived from two ancient Greek words, hedys meaning "sweet" and chion meaning "snow". This refers to the fragrant white flower of the type species H. coronarium. Common names include garland flower, ginger lily, and kahili ginger. Members of the genus Hedychium are rhizomatous perennials, commonly growing 120–180 cm tall. Some species are cultivated for their exotic foliage and fragrant spikes of flowers in shades of white, yellow and orange. Numerous cultivars have been developed for garden use, of which 'Tara' has gained the Royal Horticultural Society's Award of Garden Merit. 

Hedychium greenii (shown here) is a small to medium sized ginger, usually growing only 1 metre tall, but sometimes up to 1.6 m, if grown in optimal conditions. The foliage is very attractive, reddish-purple stems and undersides of leaves and dark green on the upper sides of the leaves. The flowers are bright red but the flower heads are smaller than many other Hedychiums. Its bright colour and flower shape have given it the common name "red butterfly ginger".

Hedychium greenii is unique among butterfly gingers by producing prolific small plantlets from the flower heads. You can pull off these plantlets after they mature a bit and stick them in the soil about 2 cm, and they will root readily forming new plants. This makes them easy to propagate, and it is a very good thing. Hedychium greenii requires a little more shade than other Hedychium species. It has a tendency to dry out in much sun, unless regularly watered. Its native habitat is moist, even marshy ground, and it should be kept very moist for best flowering. Hardiness ratings all the way from zone 7 to zone 9.

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CHINESE GLORY BOWER

The Chinese Glory Bower flower is a sumptuous garden plant that is known by a variety of formal, scientific names: Clerodendrum philippinum, Clerodendrum fragrans var. multiplex, Clerodendrum fragrans, Volkameria fragrans, Clerodendrum fragrans var. pleniflorum. It is a native of China and Japan, which has been naturalised in tropical and subtropical climates. 

It is a shrub, up to 2.4 metres tall with heart shaped leaves, up to 25 cm long. It propagates with underground runners, and can be invasive. The Chinese Glory Bower usually encountered in nurseries has double very fragrant pink or white flowers, 2 cm across. The wild form is single-flowered. The flowers are most fragrant in the evening and attract butterflies. When the leaves of flowers are bruised they can exude an unpleasant pungent odour.

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TITAN ARUM

Amorphophallus titanum (titan arum) has a massive inflorescence (flowering structure) consisting of a spathe (collar-like structure) wrapped around a spadix (flower-bearing spike). The spathe is the shape of an upturned bell. It is green speckled with cream on the outside, and rich crimson on the inside. It has ribbed sides and a frilled edge, and can be up to three metres in circumference. The flowers are carried on the lower end of the greyish-yellow spadix. At the base of the spadix, within the protective chamber formed by the spathe, is a band of cream male flowers above a ring of the larger pink female flowers.

When the flowers are ready for pollination, the spadix heats up and emits a nauseating smell. This stench is so bad that the Indonesians call the plant ‘the corpse flower’. Analyses of chemicals released by the spadix show the “stench” includes dimethyl trisulfide (like limburger cheese), dimethyl disulfide, trimethylamine (rotting fish), isovaleric acid (sweaty socks), benzyl alcohol (sweet floral scent), phenol (like Chloraseptic), and indole (like human faeces). The inflorescence rises from a tuber, a swollen underground stem modified to store food for the plant. This tuber, more or less spherical in shape and weighing 70 kg or more, is the largest such structure known in the plant kingdom.

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