Here's an ATP link of Big Swing.
Sage (Salvia 'Big Swing') with info, pics, multi pics that include Big Swing and comments.
ATP info (that I took from FBTS when I added the info to this Salvia in the database)
Plant Height: 36 - 48 inches
Plant Spread: 24 inches
I'd allow 24 to 36 inches for spread, in my personal opinion. Don't know if the plants would get bigger in southern zones or not.
I grew Big Swing in containers every year. Had to replant, also.
Get your Big Swing at Flowers By The Sea.
http://www.fbts.com/salvia-x-b... Kermit states it is water loving and it is true!
Great Salvia!