I don't know as I haven't grown these yet. I did find one post about globemaster. You might want to PM some of those who have grown it if you don't get any further responses.

I bought 3 Globe Master bulbs back when they 1st came out. They are an awesome flower due to their extended bloom period. I leave the dried heads through mid August sometimes earlier (depending on how they look) for garden interest. Then I dig them up and each bulb now has a sidekick which I remove and then replant. I have a huge crop now and get lots of comments about them.

I've never grown them so can't offer advise, but I'd like to try them. Did you all plant them in full sun and what kind of soil?