To their minds, a garden meant straight rows of single species, not a three-dimensional sprawl of abundance. And yet they ate their fill and asked for more, and more again.
I think that this shows that the colonists didn't understand the beauty and full extent of nature and how to properly farm from it. This would also be a surprise to them because they thought so low of these people and yet they showed them something new and how to do it better.
A sculpture is just a piece of rock with topography hammered out and chiseled in, but that piece of rock can open your heart in a way that makes you different for having seen it. It brings its message without a single word.
This again continues that message that actions and the intent of something can create a message on it's own. Like the sculpture conveying a message without word, plants do the same, and I think that in some cases this can also relate to people and how they act and present themselves to others.
Plants tell their stories not by what they say, but by what they do.
I thought that this a very thought provoking thing to say because I interpret it in a way similar to actions speaking louder than words. The plants tell their stories with the way that they act and their actions rather than their words.