Gunnera tinctoria, known as giant rhubarb or Chilean rhubarb, is a flowering plant species native to southern Chile and neighbouring zones in Argentina.
Giant Rhubarb Care
Gunnera Tinctoria
Other names: Chilean Rhubarb



Invasive on the west coast of Ireland.
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How to Care for the Plant
Water
If grown in the right environment, with moist soil watering is rarely needed.
Pruning
We recommend cutting the flower spikes close to their base, with a gardening knife or pruning saw, in July or August.”
Fertilizer
That said, rhubarb is a heavy feeder, so apply compost annually or an all-purpose fertilizer according to the manufacturer's instructions early in the spring. If you live in a warmer region, mulching around the base of the plant will help keep the soil cool and moist. Keep the soil moist but not sodden.
Soil
When planting Riverside Giant rhubarb crowns, choose an area of full sun to partial shade with deep, rich, and moist but well-draining soil in the spring. Dig a hole that is wider than the crown and deep enough to that the eyes are 2-4 inches (5-10 cm.)
Temperature
Rhubarb is a perennial that loses its leaves in the fall and then requires a winter chilling period to produce in the spring. Rhubarb can be grown in USDA zones 3-7 and tolerates temps as low as -40 F. (-40 C.).
Container
Yes indeed, it is possible to grow rhubarb plants in containers.
Additional
Although Giant rhubarb is not poisonous to humans, the leaf blade and stem bear stiff bristles which can scratch skin.
Brazilian giant-rhubarb is very similar to giant-rhubarb with leaves reaching over 2 m across, leaf stalks with reddish bristles and spines and the inflorescence up to 1.2 m tall. Giant-rhubarb is spread throughout lowland areas especially in south-west England.Popularity
154 people already have this plant 42 people have added this plant to their wishlists
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