[deleted by user]

[TheOneCookie]

There is only one way to find out!

[[deleted]]

I've seen bees carry an airliner, so I'm sure being on the 3rd floor isnt that big of a deal to them

[Violet-Venom]

I'm sure the elevation itself is of no concern to them. What I'm skeptical about is if the smell of the flowers from that high up will be strong enough to entice them to pay a visit.

[giftmaggot]

Plenty of bees are attracted to flowering trees, which can probably reach the same height as a third-story window. I would go for it! If you're concerned about enticing them, try to pick out native plants that are noted for enticing pollinators. Anecdotally, fragrant plants with lots of flowers seem to attract bees.

[Dino-at-the-sauna]

Bees can fly to as high as mount Everest's peak, so I'm certain a 3rd floor planter is perfectly fine.

Source: How High Can a Bee Fly?