The last thing you want to do is use hydrated lime in your soil. Its nothing like dolomitic lime, or calcitic lime. Hydrated lime is very alkaline, and will raise your soil ph up into the 9 or higher easily if over applied. Its not an easy lime source to work with, so I would avoid ever using it.
I used it once before after reading someone say it was the same as dolomitic lime..Well it obviously wasn't, and the plant came to an immediate halt in growth, and was completely stunted. Ph was over 9 when checked. Thankfully a flushing and repotting into new soil did the trick, but I dont want to see you experience the same thing, nor anyone else.