David said: We discussed the flowers in class, check out your MM sheet. They have similar effects to the bark, but much, much milder. I use the flowers with Lemon Balm for children who are depressed. There is no safety data for pregnancy. You do not want new growth, you want branches that are at least an inch and a half to 2 “ diameter. At that point the bark is therbark I doubt you could separate inner form outer and it is not necessary. You do not need glycerin for the flower tincture, e/w same alcohol %.