I have 25 seed grown babies, almost a year old, 6 purchased seedlings 2 years old, and 6 purchased plants 3 years old. I want to try putting the 3year olds outside for the summer. Will an umbrella be sufficient shade to acclimatize them to full Sun? I live in Ontario not far from Toronto. Here are pics of my adenium family from youngest to oldest which are the subject of my question.
