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Re: Tree Sotol
Posted by George in Bandon Oregon
on 9/19/2018, 8:07 pm, in reply to "Tree Sotol
think it's actually natural for the flower spike to change colors as the flowers age and (like many flowers fade and brown. hopefully as the flowers "die" you may see seed capsules developing. OTOH, if you see green leaves at the middle and top of the plant (as opposed to lower "old" leaves that naturally turn yellow and brown)that have dark spots on the green leaves and the leaves themselves turning yellow or shriveling----you may have problems with disease, excess soil moisture/poor soil drainage. FWIW think dasylirion (and nolina) along with many yuccas do not die back after flowering. hope this is of some interest and help.
the upper southern oregon coast
USDA zone 9a (Sunset zone 5)
DRY cool summers and WET cool winters
grow eucalyptus, banksias, telopeas, grevilleas, bottlebrush, mexican pines and oaks