Worm castings soil : need to flushing?

Hi!

I'm growing my first weed with 30% worm castings and 70% soil mix and it is 5th week of flowering.

Water is given once a week, and I used only Dynagro Bloom for nutrient and It has been given three times only so far and I'm not going to give her more nutrient until havest because I found some nute burn.

Do you think I need to do flushing?
Thank you guys

If you stop feeding @ 5 weeks, and plan to go for an 8 or 9 week flower period, I don't think you'd need to flush - or - at least I probably wouldn't.

Interesting read about people actually preferring the non-flushed results: