Attaching bamboo for a short garden fence

I'm looking to create a small 1-2ft high fence as a divider for my garden (mostly decorative), using some extra bamboo I have leftover from a recent pruning.

Here's roughly what I'm aiming for (still needs to be evened out, cleaned up, etc): https://imgur.com/a/qZzsQXX

Note that I live in the Pacific Northwest, so this fence will need to hold up under frequent rain.

What's the easiest way to attach the bamboo together in a way that will last outdoors? Is there a wood glue that will work for outdoor use, and still look clean? Or will I need to drill holes in each individual bamboo piece if I want this to stay up?