lulax means indigo

Looking for another 'vegetable blue' I found this reference. I have seen 'lulax'  few times and see that Mappae Clavicula as translated by Smith and Hawthorne has this note:

or does it...

perhaps it just means a certain color blue?

Smith and Hawthorn 55

'vergaut'? Blue and yellow make green!

The term 'vergaut' was introduced to me by Elena Wyth when she asked a question about mixing indigo and orpiment on Facebook. I hadn't come across it before, so I went to the books!

There seem to be many medieval instructions for mixing orpiment and indigo but few call it vergaut, as far as I can see. Read more below to see what a brief search helped me find.

indigo

Indigo (Indigofera tinctoria)
                 4/13/15 Soaked seeds in water overnight.
                 4/14/15 Planted 2 seeds each in three 4" pots,
                         three seeds each in three 4" pots, none of these germinated.
                Planted more outside in pots 5/30/15, two seeds germinated and grew.
                  Plant matter never yielded blue