Costco Flowers Prep

I am looking into it as well. They usually recommend cutting the stems (45 degree angle) and keeping it in water with a special food powder dissolved inside. They sell them online, or may come with the costco flowers, not sure, but it increases the longevity.
My friend did her own bouquet (came out great), but she didn't order the flowers, she bought roses the day before at a costco and then went to a florist to buy some greenery and a few special flowers.

I have heard nothing but good things about Costco flowers... I think they recommend having them delivered 2 days prior. And I'm pretty sure they give you detailed instructions about storing/caring for them.

I'm ordering bulk flowers as well but from a local flower farm... I'll pick them up the day before and have been told to trim them and keep them in fresh water in the basement where it's cool but not in a fridge as it's too cold.

All I know about storing real flowers is that they do best in a fridge! But ya... that's all I know...

I spoke to the flower Lady at Costco and she said for Wedding orders, that you need to place your order 3 weeks in advance which was all I asked about.

I found some great flower care advice on fiftyflowers.com.
I haven’t ordered flowers yet but am strongly considering Costco. I’m looking forward to reading the responses to your post!