Pruning should be done during the summer right after flowering.
Try to plant in a location that enjoys partial sun and remember to water moderately. Swan Lake is generally regarded as a hardy plant, so this plant will grow or become dormant during the winter. Swan Lake needs a loamy soil with a ph of 6.1 to 7.8 (weakly acidic soil to weakly alkaline soil).By our calculations, you should look at sowing Swan Lake about 35 days before your last frost date.