I went through about 20-30 beehives before I acquired the knowledge.

You can found this one in this area. Next to Heidel.

알레한드로 농장 북쪽 쿠쿠새 나오는 곳에서 얻었습니다. 일반타격이 되는 벌집나무가 따로 있습니다. 작은 벌, 벌집 2개의 지식 모두 일반 공격으로 획득 가능 했습니다.

There is no more behives nerby Heidel. Checked it today by looking with knowledge.

I found at least 7 of them just north of Florin, hanging from Ash Trees. You'll need a matchlock to shoot them down. BTW if you see any small trees marked "Beehive" they don't drop anything, I believe they're for quests.

Side note: This area north and north/northwest of Florin has a lot of Ash Trees so it's good for collecting sap. Ash Sap is in high demand so you can sell or save to use later for elixirs.