CALTHA palustris

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GOLD NUGGET SEED ® CALTHA palustris   Seeds

CALTHA palustris

Kingcup, Marsh Marigold, May-Blob, Meadow Bright, Souci d'eau
Select Item No. CG044

Also available as:

1000 Seeds


The minimum order quantity for this article are 200 seeds.

There are no units prepacked, any seed amount ( > minimum quantity) is weighed individually.

Plant Description

Article Type: (GOLD NUGGET SEED ®)
Life Cycle: Perennial
Family: Ranunculaceae
Origin: Northern Hemisphere
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: The beloved flowers - the color of butter - and the glossy green heart-shaped leaves, once used in salads by early settlers in the USA. A plant perfectly suited for stream banks or at the edge of pools. Plant of the Year 1999 in Germany.
Historical: Pliny and Virgil commonly used the name Caltha for yellow flowers, possibly for Caltha palustris. Palustris indicates that it is from moist areas.
Basic Colour: (yellow / gold)
Flower Colour: deep yellow
Natural Flowering Period: April - May
Winter Hardiness Zones: Z3 - Z7
Foliage: heart-shaped, shiny green, toothed margins
Growth Habit: clumping
Height with Flowers: 30 cm
Spacing between Plants: 30 cm
Soil Requirements: boggy
Characteristics: toxic plant / medicinal plant
Usage: water or marshplant
Grams per 1000 seeds: 0.67568 Gram
Seeds per Gram
(does not correspond to the number of plants!):
Plug tray recommended size(s): open flats
Sowing Direction:

(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.

Best Sowing Date
(northern Hemisphere, Field condition):
Sowing to Germination: 3 - 4 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2")
Fertilizer: Medium (150-200 ppm)
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