Talk:Growing Power/@comment-33129956-20170918064818/@comment-2601:448:4300:296B:7412:3F14:3F28:3A85-20170919031603

The non-asshole answer to your question:

Yes it does, but only if you cast it while you see the Growing Power buff active.

Growing Power won't effect abilities that were already cast. On the other hand, a warframe ability boosted by Growing Power will keep its higher strength for the entire duration of the ability.