I copied my response on another thread to hear. I decided I was getting way off topic from seedling blooms.
First, I did a amazon search "white photography umbrella" and found many white umbrellas. Next, I'm very interested in the one that has a light stand and the umbrella for $29. I read the reviews and some say cheap but then I found some folks that say it lasted for years and the price is amazing. I will not have any help in taking pictures, so i figured I could use the light stand, minus the bulb, outside in the daylilies. I know wind will be a huge issue with this, but that aside, I think I can make it work. With it they have a light reflector that can be bought at the same time for $16.75. It's like a big hoop with cloth in different colors. Would this be useful. Ok, with all this, I'll provide a link and you can tell me what you think.
https://www.amazon.com/dp/B000GX484U/