The earliest I've ever had a Hippeastrum bloom, by its own cycle, was in February. The bulb was a hybrid, Minerva... and I chose to grow it like a houseplant, allowing it to rest or actively grow on its own natural schedule. A couple of years, it decided to send up scapes in February, as the days grew longer in my northern climate.

The usual cycle is purchasing in autumn, followed by a Christmas blooming... only because the bulbs are primed to bloom by the grower. But when allowed to revert to their natural bloom cycles, I find most will bloom around early spring, some closer to late spring or early summer, depending upon certain variables.

I hope you'll post photos as your bulbs bloom... I've not heard of a couple of your choices, and I'm interested to see what they look like!

By the way... nice blog! I can't wait to read more! :-)