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Weird Plants: Amazon Water Lily

PimlicoDan
Published on May 18th 2019
16
Few botanical specimens are so grand, fascinating and difficult-to-grow that they have their own dedicated greenhouse at Kew Gardens, but the Amazon water lily is such a plant.
A close up of some Victoria amazonica in a pond

Amazon Water lily

Victoria amazonica

To see Victoria amazonica in full leaf and bloom at the height of the growing season is quite a spectacle.
Just a simple city home... the water lily house at the Royal Botanic Gardens, Kew.

Queen of the water lilies

Native to the shallower waters of the Amazon river basin, this giant water lily was first described in 1801, although its first published mention was in 1837, the year that Queen Victoria ascended the throne.
The plant was initially named Victoria regia, in the sovereign’s honour. During the 20th century, the current epithet of amazonica became more commonly used and eventually replaced it.
A flock of birds sitting on top of a body of water
The jacana, also known as the lily trotter, spends its life on the leaves of water lilies.

A grand dame

Floating plants, such as water lilies and sacred lotus are generally quite large, anyway, but Victoria takes it to the next level.
The floating leaves are up to three metres across and borne on stems that can grow up to eight metres in length.
The bright green leaves curve up at the edge and are spiny below to protect from nibbling fish.
A person swimming in the water
The leaves are so buoyant they can support the weight of a young child, as is often pictured (but not advised!).
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Blooms for beetles

As you’d imagine, the Amazon water lily produces massive flowers, around the size of a dinner plate.
They are relatively short-lived, only lasting 48 hours, but have a fascinating life-cycle. On the first evening, the bloom opens white and releases a perfume that attracts beetles.
The flower then closes up and keeps them imprisoned for 24 hours, after which the flower reopens, odourless and flushed pink. As the beetles are released, they carry away the plant’s pollen, avoiding self-pollination as they travel to look for new, white blooms on other plants.
A cake with green grass
Victoria amazonica is the national flower of Guyana.

The demands of an Amazonian giant

Victoria amazonica is limited to botanical gardens for good reasons. Firstly due to size and secondly, temperature and light demands.
Fascinatingly, for such a colossal plant, it is grown from seed. To put that much growth on in one season requires as warm, bright, humid and nutrient-rich environment as can be achieved with a minimum temperature of 29°C (85°F).
The sister species, the Santa Cruz water lily (V. cruziana) can tolerate slightly lower temperatures, as can the ‘Longwood Hybrids’.
Even in what seems like perfect conditions, the Amazon water lily can curl up its toes for no apparent reason. This 'toe-curling' may be another reason it’s such a joy to see a mature, healthy giant.
Here are some easier alternatives for cooler gardens:

Victoria’s cousin, Medusa’s sister

As Victoria is so challenging to grow, as a little home experiment you could try to grow the gorgon plant, Euryale ferox, instead.
Named after the Gorgon Medusa’s sister from Greek mythology, Euryale is tolerant of much cooler temperatures, yet will produce leaves similar to Victoria of over a metre across.
The leaves lack the rim of its cousin but are covered in spines that dwarf the insignificant flowers to add interest.
Euryale is an excellent choice for something unusual that lacks the regal demands of the Amazon queen.
IMAGE: Euryale ferox
Euryale ferox, or the fox nut, has been used in tradition Asian medicine for centuries.

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