Isatis tinctoria - Woad
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  • Siliques of Woad
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Isatis tinctoria - Woad - Seeds

€3.00
Tax included

Isatis tinctoria - Woad
1 packet of 40 siliques

Quantity
Available

Description

  • Brassicaceae Brassicales
  • Caucasus, Naturalized in Europe
  • H 1.5m x L 1.5m
  •  Z4 
  • Biennial
  • Synonyms : Dyer's Woad, Glastum
  • 1 packet of 40 siliques

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Details

Isatis tinctoria is a fast-growing biennial plant, which thrives on dry soils, wasteland, stony grounds, etc. in open exposure and full sun

Seeds germinate in spring of Year 1, and quickly establish a taproot and a rosette of smooth, broad, brittle, and bright green leaves

Flowering takes place in the spring of Year 2
Very early in March, flower stalks emerge from the rosette of leaves
They are dressed in elongated, small, leathery, and glaucous green leaves, arranged in helix around the stem

The blooming is spectacular
Flowers are small, very abundant, and gathered in majestic panicles of 1.5m
They each have 4 green sepals and 4 bright yellow petals, the combination of the two colors giving the panicle a very fresh color, which contrasts beautifully with the bluish foliage
They are meliferous and very attractive to bees

An abundance of fruits (siliques), green then brown, appear a few weeks later
Siliques, containing seeds, are suspended gracefully over the entire panicle and give it a very decorative aspect

WARNING !
Plant known to be invasive in some regions, control its spread by preventing it from producing seeds

The seeds give an edible oil similar to rapeseed oil

Isatis tinctoria has some medicinal properties: Antibacterial, Antiviral, Astringent, Anticancer, Emetic, and Laxative
It was traditionally used in the Caucasus countries as a leaf decoction to treat wounds, tumors, boils, and fungal dermatitis, or as a syrup against measles

Isatis tinctoria is a dye plant, traditionally used to produce Indigo
In Western Europe, Dyer's Woad was cultivated on a large scale and since the Middle Ages, both as a source of Blue Pigment and for textile dyeing
It was long known for the latter use, by the Celtic populations of northern Europe, as well as by the Romans and other Peoples of the Empire
It is also possible to get a purple dye, caused by Indirubine

Hardy, Woad will grow in regions with a cold winter, contrary to other indigoferous plants, from tropical and subtropical climates

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Cultivation

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
A1

Sow the seeds of Isatis tinctoria at the very beginning of spring, directly in place, by dispersing the siliques in a fairly spaced manner (large plants) on a clean, loosened soil.
Bury them slightly by scratching the surface of the soil with a rake

For extracting Indigotine, harvest the leaves in June and July on Year 1
This is when you will get the highest Indigotine content, and the best indigo quality

There are several methods for subsequently obtaining the indigo color in dyeing

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Use for Dyeing

Learn to Use this Indigo Plant with our Courses:

Internship indigo Dye on Wool and Colorimetry

Internship Master Class: Compound Colors and Colorimetry

IsatisTinct-GRAINE

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