Brugmansia seed typically germinate somewhere between 2 to 10 weeks – however sometimes seed can germinate faster or slower spending on germination conditions (temperature, light, moisture, etc.) so normally I let seeds sit for a year before I determine that they are no good unless I begin to see mold growing and then I toss them.
Brugmansia can flower in as little as 9 months under ideal conditions, however in colder climates it can take 18 months or more before you get your first flower.
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