User blog comment:CalimTheCrystalGem/Please help me with Pirate Seas Day 15/@comment-9944069-20170404004002

This is a good setup:

Sunflower

Cabbage-pult

Kernel-pult

Snapdragon

Wall-nut

Use any other plants as you wish.

First of all, you should get a few Sunflowers out on Column A once the first zombie comes. Put a Cabbage-pult in front of it, and another above it for the other zombie.

Complete your column of Sunflowers, then move on to Wall-nuts. Place them at the bottom row, Column E, as that is when the first Swashbuckler comes. Plant a Snapdragon there and get another Wall-nut out.

Get a column of Wall-nuts, Snapdragons, and Kernel-pults. Put the Snapdragons behind the Wall-nuts, and the Kernel-pults behind the Snapdragons. Plant the Kernel-pults later.