They will/should come up (possibly not bloom)

you saw nothing in the cell pack.. above the media???

ken

Ken,
She got them at Costco as "roots". They were probably tubers in a bag, so she wouldn't see anything at all. And she already informed us it was an impulse buy. By definition it was not carefully considered. She's asking what she can expect this year.

I agree with Shadyplace. They'll sprout, but might not bloom. Then again, if they haven't been in moist soil, they might sprout and bloom late. Make sure they have a shady spot.

Martha

Shadeyplace - Thanks for your answer! I hope you are correct.

Ken - They were in a bag, just tubers I guess and not roots. Similar to how daylilies come a lot of times from online sources. I've had good luck growing maximilian sunflowers & daylilies in this way, but I wasn't sure if planting them during what would normally be their bloom time, if it would mess up their growth for the year.

Martha - You are correct. I didn't realize they were tubers though, thank you for clarifying that.

Yep, they are sure in a nice shady spot! Thank you for your response. I don't mind too much if they don't bloom this year, just hoping they do sprout so I know if they are duds or not. I've never purchased flowers from costco so I'm anxious to see how they do.

Well, its counter to the method & ways i've had great success with & that's to pot up first, then place in direct sunlight & lightly fertilize the roots at least once until growth appears. Once growth appears let it grow in sun until it just begins to get hot & then plant it in the shade, carefully, as the roots are brittle & so is any new growth not yet above ground yet.
Keeping well watered if inadequate rainfall, helps it to keep it from going dormant earlier, especially if it gets hot before or during start of summer, too.
Trying out Dicentra 'pink' this year, but bought early while peat in baggy was still moist & have a few flowers now. I'm in coastal Virginia & its been rather warm lately and they're doing fine..Make sure the tops are upright, when planting also...