This is two years past, and I'm sure the original poster and replyers have long forgotten about this thread. But I wanted to leave my comment in case any new readers came across this...
Different brands of celery have different flavors. (Also, there are a few different types of celery lmao but let me not confuse you) Mostly, it's in the brands. I don't believe each brand grows their "own strain", not at all! I just think you know what to expect from each brand.
Think of strawberries for example, they're the easiest ones to imagine. I'm sure at most grocery stores, you'll see a sale like $2.99 per unit for example... But when you look down at the strawberry section, you'll probably see more than one strawberry company there. You'll see 50 that say "Cascadia" or another 30 that say "Something Farms" etc etc and maybe even a bunch more called "Organic Something"...
And if you look closer you'll see that one of the brands has massive strawberries... Or you'll remember that one of the brands always has really particularly sweet strawberries....
That's what I mean.
With celery... It's easy to forget, and it's almost imperceptible. I ONLY noticed it from the celery juicing craze from 2018-2019.
My local grocery store was having a sale (the craze was dying down end of 2019). I was buying 5 bunches at a time and the brand had a purple logo. Each bunch was giving me about 12-14oz. It was also really salty, earthy and delicious.
One day, I see there's a couple different brands there. All still the same sale price. The other brand is a well known company with a dark green logo, and I get the idea to just compare them for fun. Big mistake lol. Each bunch is giving me about 18-20oz. Which you would think is great!!! The stalks are lighter green, huge and fat, But UGH the flavor is watered down.... And so I can't tell... Are these fresher, full of more water.... Or are they seriously LACKING in any nutrients??? Are they better or worse?? And all I could think was DANGIT, I miss the full flavoured salty celery juice of that other brand. I got used to my weird picklejuiceflavoredthingamajig hahaha
I started thinking.... This one is probably the one you would get at a diner/restaurant with no flavor that goes super great dipped with ranch or blue cheese.
And having worked in restaurants for over 10 years, one thing I know is that state laws kinda control where we get our produce from. Our selections are limited. So if we get celery from somewhere.... It'll probably be the same celery supplier/brand for years to come. Also there's a HIGH chance that the neighboring restaurants (ALL across the state, actually) will be using the same supplier... Not guaranteed. But they (the supplier) will put their bids in, and there's a good chance they'll win all of our restaurants' businesses.