Plant-Growing Container for a Sill
This page is the CodyCross answer for the clue below from Wild West, Group 434, Puzzle 5 (Riding Sidesaddle).
Question is: Plant-Growing Container for a Sill
and the answer is: WINDOWBOX
Word Meaning:
WINDOW BOX — A narrow box filled with earth, placed on a windowsill and used for growing plants.
Definitions from Wiktionary.