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Gunnera manicata

Giant Rhubarb, Giant Gunnera

Seed count: 60-75   
Gunnera manicata
Gunnera manicata
Native Region: Southern Brazil, Columbia
Zone Range: 07-10
Preferred Climate: Temperate
Harvest Date: Sunday 04 October, 2015
Seed count: 60-75

Gunnera manicata, native to the Serra do Mar mountains of southeastern Brazil, is perhaps the largest species, with leaves typically 1.5-2 m (5-6 ft) wide, but exceptionally long, up to 3.4 m (11 ft), borne on thick, succulent leaf stalks (petioles) up to 2.5 m (8 ft) long.

A true giant among perennials, this plant can produce leaves almost 3m (10ft) across on stems as long. Good soil with steady moisture, by a pond or stream perhaps, and a great deal of space, is all you need to enjoy this magnificent plant.

It germinates best in very moist, but not wet, conditions and temperatures of 22 to 29°C. For maximum freshness, please keep seed refrigerated in its original packaging until it is time to plant. Sow seed in containers in a coldframe. Gentle bottom heat can improve germination, 16-20°C (60-70°F). Grow on in any good moist garden soil. Mulch the large crowns with the leaves in regions where winter temperatures are likely to drop below -5°C (20°F) A heavy mulch can help these plants survive -17°Celsius (0°F).

Harvest Date: Sunday 04 October, 2015
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   Thursday 18 January, 2018       24,696,515 requests since Thursday 18 September, 2003   

* US ORDERS: Unfortunately due to permit process issues, we have reluctantly discontinued shipping seeds to the US.