Indigo spires doesn't flop for me, unless it's not getting enough sun, then it reaches.

In sun, the guaraniticas do not flop. Any problems with wind?

Salvia chamaedryoides, S. reptans, and S. villosa are Chihuahuan desert and mountain species with blue flowers. S. coahuilensis is dark indigo, S. muelleri is royal purple, and the lycioides x greggii forms (San Isidro - lavender; Los Lirios - dark purple) are pretty reliable. All of these are low shrubs that can tolerate sun. They do need good drainage and occasional deep watering during drought.

Salvia clevelandii * Blue Sage
Salvia columbariae * Chia
Salvia dorrii * Purple Desert Sage
Salvia guaranitica 'Costa Rica Blue' * Anise Scented Sage
Salvia 'indigo spires'
Salvia leucantha * Mexican Sage
Salvia leucantha midnight * Purple Mexican Sage
Salvia mohavensis - Mojave sage
Salvia muelleri * Royal Purple Sage
Salvia muirii * Muirii Sage
Salvia officinalis * Common Sage
Salvia pachyphylla - Rose Sage
Salvia nemorosa plumosa * Woodland Sage
Salvia 'Purple Majesty'
Salvia semiatrata

Salvia nemorosa 'Marcus'

Randy

"black and blue" salvia (also it is true blue, not purple!)