Don't try to hard I would say! It is a weed in my garden, a welcome one, but still a weed! I started by pure luck after several attempts, buying fresh seed and sowing exactly as the packet said in the greenhouse, planted the plants out in a sunny corner, and since then, I have had angelica. It flowers late summer and stands over 8 foot tall, then in the wind, all of the seeds fall to the ground and germinate very quickly. The trick might be therefore to sow in the autumn and don't cover the seed.
