Tow things

1.ok easy everysaturday night just go to the mussium and go to the cafe (first door to the left) and he will be there.
2.technically you can plant it anywhere you like, but if you plant it near the ocean it has more of a chance of growing so I suggest planting it somwhere near the ocean but not in the sand

Hope I helped ^_^

Down stairs at The Museum is KK Slider. Plant coconuts on land down by the water. Like maybe 4 rows from the water.

If you go to the cafe in The Museum he will be there. You can plant it anywhere but it grows quicker by the water. Hope this helps.

K.k. Slider will be at the cafe every saturday night between 8.00-11.00. This always works, plant your coconuts at the parts of the beach that separates the land from the sea. hope that helped!

1.K.K. Slider will be at the cafe known as the 'Roost' in the downstairs room in The Museum.
2. Plant your coconut near the beach, like not on the sand but before it. It's the land that separates from the sea. Thanks,
mynintendo22 The Animal Crossing fan and Genius!!

I have never found K.K. On this edition of Animal Crossing.
The coconut needs to be planted on sand, but not directly butted up against anything (even the ocean,) and it needs to be watered every day until it's fully grown.