In search of yellows

i have not achieved an acceptable yellow this season
using marigold
gazania
goldenrod.
 each plant gave me washed-out pale-not so attractive-yellows.

in the past i did get quite bright yellows from marigold

and went back to my earlier processes as recorded in notebooks

 

 no scientist, i am too right-brained so my notes are not 'scientific'
but here they show that i used a one-pot method of natural dyeing with alum on marigold

so i picked a pot of marigold before the weekend rain started

to give it another go