FYI, 2 years ago I bought a few Lucifer and Emberglow bulbs. All but one Emberglow survived plenty of sub-zero temps w/out snow cover (planted in May). Last year I bought a potted up Lucifer, which most garden centers carry, and an Emberglow which most consider not hardy here. Both potted put on a huge early show this year and the bulbs the woodchucks didn't get flowered a month later. Both the potted and bulbs are doing great this year with last winter being a lot like lake effect territory. Lots of snow cover and bitter cold. -21F six miles north!
The yellow looks stunning and I'll try some in the spring.