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|Origin:||India, China, Korea, Japan: forest edges, meadows, banks.|
|Special Features:||Large, lilac-blue iris-shaped flowers. Remarkabel drawing in the petal. Nice foliage in fresh light green. Clumpy growth without stolons. Rare. Easy to grow.|
|Historical:||Parts of the plant were used as cosmetics. IRIS tectorum was also cultivated on roofs and at stone walls.|
|Natural Flowering Period:||June - July|
|Winter Hardiness Zones:||Z4 - Z8|
|Foliage:||basal in fans, broadly sword-shaped, yellowish green.|
|Height with Flowers:||45 cm|
|Soil Requirements:||alkaline / average|
|Usage:||for the rock garden|
|Grams per 1000 seeds:||20 Gram|
|Seeds per Gram
(does not correspond to the number of plants!):
|Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
(16) See 15 with the exception of germination being slower and more irregular. This poses no problems.
(15) Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Do not cover very small seeds, but tightly press into the earth. Keep in cooler conditions after germination occurs.
(20) To obtain best germination results, seeds need temperatures of +22°C [72°F] or more. Moderate, but constant humidity is very important. Gunnera, however, prefers very moist (not wet) and warm (+24 to +30°C) [75 to 86°F] conditions.