Species Orchid, Grammatophyllum, Giant Orchid, Tiger Orchid

Per Irene Ngoo at Min's Garden @tropicaljungle in Singapore, about her 2 photos taken at HortPark in Singapore:
"For a moment, I h...Read Moread thought this was a Tiger Orchid (Grammatophyllum speciosum) tree. It’s so ginormous it practically wraps around the huge tree that one could not even see the trunk. This is by far the largest and densest clump of Tiger Orchid I have come across growing on a tree. Spotted this during my walk in the HortPark this morning. Grammatophyllum speciosum, also called giant orchid, sugar cane orchid or queen of the orchids, is listed by the Guinness Book of World Records as the world's largest and tallest orchid, with specimens recorded up to 7.62 metres in height and weighing more than 2 tonnes. It is often grown as an ornamental orchid in gardens, parks and roadsides for its attractive foliage and large flowers. It is cultivated as an epiphyte on street trees in Singapore, and it flowers in January or July, but most do not bloom every year. I have two such species in my own garden and one flowered two years ago, with an 8ft long spike carrying more than 100 flowers with tiger stripes on the petals. It was an awesome and unforgettable sight."

And Irene Ngoo wrote this about her own plants of Grammatophyllum speciosum in photos above: "This is my biggest orchid, Grammatophyllum speciosum, which is commonly called giant tiger orchid, or queen of the orchids. This species of orchid which is native to tropical Asia, is the world's largest orchid plant and blooms only once every three to four years. I have two of these. This one hasn't bloomed since I got it almost five years ago, while the other which came a year earlier, had bloomed twice in 2016 - in March and September. A double bonus! There were two spikes with more than 80 flowers on each stalk, reaching 6' long. It was a spectacular sight! The yellow flowers with dark red spots can grow up to 4" in diameter. The flowers remain in bloom for up to two months. The flower has a mild and pleasant fragrance that smells like a cross between jasmine and ylang-ylang flowers. "
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"Tiger Orchid (Grammatophyllum speciosum) has started blooming. The first flower has four metals instead of five, paving the way for a mass display in the days and weeks ahead. This is the largest orchid species in the world with specimens growing up to 2 tonnes and bearing up to 7,000 at a time! It is often grown as an ornamental orchid in gardens and parks for its attractive foliage and large flowers. It is cultivated as an epiphyte on street trees in Singapore. In Singapore, it flowers in January or July, but not every year. Mine last bloomed in 2016. The 10 cm-wide flowers are borne on an elongated shoot from the base of the stem. Both its sepals and petals are pale greenish-yellow with orange-brown spots, turning darker when older. The floral stalk can reach about 2 m tall and carries more than 50 long-lasting flowers. This species is best grown as an epiphyte, tied to the trunk of a large tree near the crotch, but it can also be planted in the ground or in large containers."