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The gunnera, also known as gunnère or giant rhubarb, is a plant with interesting foliage, almost essential at the water's edge.
In summary, what you need to know:
Last name : Gunnera manicata
Family : Gunneraceae
Type : Perennial
Height : 2.5 m
Exposure : Sunny
Ground : Wet
Foliage : Decreased or persistent depending on climate
Flowering : May to September.
Maintenance is easy, the decorative effect of gunneras is guaranteed!
Planting takes place preferably in spring. Choose a place with good humidity, preferably at the edge of a pond.
- The gunnera likes rather rich and humid lands.
- The gunnera needs sun but tolerates light shade.
- The gunnera fears strong and / or too cool winds
The multiplication of gunnera is carried out by division of the tuft in spring by cutting the rhizomes.
The gunnera seedlings is done in spring and in a cup kept slightly damp at the same time.
- The sowing is long (almost 90 days) so you have to be patient
Size and maintenance of the gunnera
Relatively hardy, gunerra nevertheless fears frost when it reaches -10 ° (or even less if it is prolonged).
- The foliage disappears as soon as the thermometer drops below 0 ° C.
- Remove all leaves in the fall by cutting back as short as possible.
- Its leaves are used to protect the stump in cold winters and frosts.
Gunnera in pot
The growing gunnera in pots is possible under certain conditions.
- The land must be rich and therefore fertilized regularly.
- The pot must be of a substantial size if you want to keep your gunnera for several years.
The roots must always be damp but should not be left in the water as this will rot.
- Provide a large saucer for your pot that you keep constantly filled with water.
- Water regularly without flooding the roots.
To know about the gunnera
Originally from South America and Brazil, this perennial with nearly 45 different species is very spectacular.
It offers a very large foliage as well as its flowering, whose spikes can reach up to 1.5 m high.
Its culture does not require no special care except that it must be protected from the cold in winter and installed near a water point.
If we often call the gunnera giant rhubarb, make no mistake, its leaves and stems are not edible.
Smart tip about gunnera
In the fall, use the leaves you cut to protect the stump from the winter cold.
Photo © I-Wei Huang