One simple rule to make window boxes like these more interesting plant a thriller (something tall), like a spiky cordyline; a spiller (something to trail over the sides), like white bacopa; and colorful fillers, like yellow million bells, coral twinspur, and orange snapdragons.

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One simple rule to make window boxes like these more interesting plant a thriller (something tall), like a spiky cordyline; a spiller (something to trail over the sides), like white bacopa; and colorful fillers, like yellow million bells, coral twinspur, and orange snapdragons.

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