Celery Stalks
Worked fine for me earlier today. Try the others as it’s a waste to spend pristine spores on them.
Since it’s so much more expensive than what Milton Book charges, it would make more sense to go to Cornucopian Fields instead.
This should be given back to Bjarni though. Celery Stalks are a r25 cooking ingredient. It doesn’t make much sense for it to finally show up in a level 25 – 35 map, when the player is likely to have no further need of the food.
If you are really desperate, the drop rate of Celery from Tiny Icy Bags is decent (compared to other account bound cooking ingredients) – sitting at 6%. I’ve even been throwing away tons of Celery as I can’t sell it and using it in a recipe usually devalues the other ingredients.