Checking indigo leaves for color…not yet. No sign of blue yet when leaves are crushed, just chlorophyl green. Anyone have any other suggestions for checking for indigo other than the “crush and look for blue” method for either of these species?
Persicaria tinctoria on the left, indigo suffruticosa on right.
And the indigo suffruticosa is two heights, the one that overwintered is over 4′, in the foreground you can see this year’s seedlings at about 12″. Curious to see if older plant still yields indigo. And I do provide plant supports, because the wind sometimes really blows here in the Texas Hill country and if a major stalk breaks my gardener’s heart will suffer in sympathy.