Image: The Garden through the Year, Graham Stuart Thomas
One of the great English gardeners, Thomas filled Garden through the Year with ideas and advice for every month.
In the chapter October, he writes that the way to grow asters, especially the variety 'Climax', is "to select single large-rooted offsets in spring and plant them in good soil at least two feet apart. The result will be great pyramids of blossom. . ."
He's a good man to read in the autumn.