Ageratum Artist is a cutting raised plant rather than the seed raised version that you would buy in a 6 pack. It will produce a much bigger plant. Being a premium cutting raised you would expect to pay more for it so should be pushed for container use rather than planting in beds.

Asiatic lily will come back every year, can be used in pots or in the ground in a south facing position (i have some 6 years old in my garden).

Hope this helps a bit.