Product 904 From 3775
Pure seed CHASMANTHIUM latifolium   Portion(s) (Image Rights)


Northern Sea Oats, Spangle Grass, Spike Grass
(UNIOLA latifolia)
Select Item No. ZA430


One Portion is usually sufficient for approx. 50 plants.
Please switch to gram for larger quantities.

Plant Description

Article Type: (pure seed)
Life Cycle: Perennial
Family: Poaceae
Origin: Eastern United States westwards to Eastern Kansas: woody slopes, moist thickets.
Special Features: One of the most adaptable of the North American grasses. Flat panicles of pendulous flowers, pale green at first, turning golden brown. Good as a cut flower and later it has outstanding autumn and early winter effect as the drying seed heads rustle in the wind.
Basic Colour: (green)
Flower Colour: pale green at first, turning golden brown
Natural Flowering Period: August - October
Winter Hardiness Zones: Z4 - Z10
Foliage: medium green and slightly arching
Growth Habit: upright, erect
Height with Flowers: 80 cm
Spacing between Plants: 60 cm
Soil Requirements: moist / well-drained / average
Characteristics: decorative fruit
Usage: suitable for cutting
Grams per 1000 seeds: 3.7037 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):
10 Gram
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): 72 / 128
Sowing Direction:

(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.

Best Sowing Date
(northern Hemisphere, Field condition):
Sowing to Germination: 4 - 8 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2") / 2-3 plugs per 15 cm (6")
Vernalization: No vernalization required for flowering in the first year.
Forcing: This species is not a suitable candidate for forcing.
Fertilizer: Medium (150-200 ppm)
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