Yes, excellent! Unsurprisingly, you have made a perfect sentence. But it is a very different sentence from the one we have here in that the description takes place on a particular afternoon and the author is describing flowers and flowers are plants (plants are more or less fixed to the ground, aren't they?). In our sentence we have a person who is described as though he were a plant - seated there in his garden for an eternity, except that 'every afternoon' is added."Near the stadium there was a garden, its flowers glowing in the afternoon sun."