Here you have the care guide so that the natural dye lasts as long as possible:

Wash with cold water and with similar colors preferably by hand.

Use neutral pH soap (Easiest to get is coconut, mild or baby soap) Nut soap works great too and is a more natural option.
Do not apply the soap directly to the garment, dilute it with water first.

Natural dyes are sensitive to sunlight and this can deteriorate them over time.
Hung dry and in the shade.

Don't rub. If you want your pieces to be very dry, simply expand them very well when you hang them.

Color imperfections are normal as this garment is dyed using a natural, non-toxic process.

!Enjoy your little piece of nature!