I never have any luck with salvia and it's particularly upsetting because it was my grandmother's favorite. My earliest gardening memories are of helping her plant red salvia, candlestick plants and clematis in the spring. That was a really really long time ago. So my question is, after the flower spike is spent, is there some place in particular I should cut it off like you do when deadheading roses? My plants always end up too tall and leggy with poor blooming.