I keep finding water sprinklers that will "water a 100 radius area" or
"will water a 30 foot radius area"..
which is great if you have a large yard.. but I have a very small area
to water.

I need a way to water an area about 4 feet by 50 feet .. there are
plenty of tall and bushy plants in the area (this is the flower garden
next to my home)
what would you suggest for a good way to water this kind of area?