Za uporabo so korenine od rastlin, starih vsaj tri leta. Ker nimam primernega vrta, kjer bi ga lahko gojila toliko časa, sem ga vsadila v nekaj večjih loncev. Enega bom skušala prezimiti, dva sem izkopala in z drobnimi koreninicami barvala.
Postopek vzame kar precej časa, saj je treba koreninice temeljito očistiti.
Last summer I grew madder "Rubia tinctorum" for the first time. This plant contains alizarin in its roots which imparts a beautiful red colour to wool, silk and cotton. Roots from plants at least three years old are appropriate for use. Unfortunately, I don't possess a garden suitable for growing madder for three years so I planted seedlings in several larger flower pots. I'll try to overwinter one of them. I took two plants out of the pots and used the tiny roots to dye.
This is a rather time-consuming process since the tiny roots have to be meticulously cleaned.
I placed the roots from one plant in a gauze bag and those from the other plant directly into a glass jar, and poured hot water in both.