I planted that particular Brodiaea many years ago. They are growing well in Chicago. In fact, I am adding 100 more of this Brodiaea in my garden this fall. Still have about 30 more to plant. So I am sure you can plant them in your garden without any problem.
Here's what it looks like in late spring-early summer:

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The Queen Fabiola is beautiful, and an excellent cut flower.
My absolute favorite vase arrangment this past summer included them. I had Lily "Conca D' Or'" paired with Gladiola "Jacksonville Gold", and then filled in with the Queen Fabiola. I love the look of the soft yellows with the periwinkle color. Plus, that lily bloom was huge measuring 8-10" across. I am thinking of buying more QF so that I have them for arrangments.

Danielle

-pitimppinai, you have been such a big help, thank you. I think I will plant them in one of my warmer micro-climate areas to be on the safe side. Yours are wonderful, nice pairing with the other plants. Is that a 'Vision Light Pink' Geranium you have with it?
Thanks again
CMK

You're welcome, christinmk. That is geranium lancastriense. It is really cute and a long bloomer.

I also have Brodiaea planted in my Zone 5 garden. I ordered it from Scheepers a few years ago, and did not notice at the time that their listing had it for Zone 6. I planted them anyway and so far they have all come back ItÂs maybe 3-4 years so far.