Hummingbird Mint likes full sun but apparently tolerates light shade. I can’t speak to that from experience because mine were south facing in the fullest full sun possible.

On the listing for Agastache “Ava” on the High Country Gardens website, it says to plant it in “enriched” garden soil. However, I think this is probably a mistake, unless I’m misinterpreting “enriched.” At the bottom of that same page it recommends average or sandy garden soil and in an article about planting agastache on their website, it recommends “lean, well-drained soils,” as well as “gravel mulches.” They also note that because this is a xeric (waterwise) plant, after the second growing season, “deep but infrequent watering” is the way to go.

I completely agree–Hummingbirds are a joy!

Catmint and hummingbird mint are both members of the Lamiaceae (mint) family which is why they both have fragrant leaves. I am no expert on these plants by any means as I have had mine for only one year! However, I don’t think they spread the way mint does. Mint produces no seed; it reproduces through underground stolons (which is why people often plant mint pot and all in order to keep it contained, as Robin recommended). There was a note on the High Country Gardens website that explained that if you plant different agastaches together, you might get some seeds that germinate. These are usually weak and inferior, so they recommend just pulling them up. Anyway, I only have hummingbird mint, I don’t have any other agastaches, so I am hoping that this won’t be a problem for me. We’ll see.

I tore up a lot of my flower beds last year with the remodel we did so that I’m going to have to be replanting quite a bit this spring.