Not recommended for Sunset zone 37 (stops at 34 and 39).
Blooms on new growth; Sunset recommends cutting nearly to the ground in spring, but Stoecklein specifically discourages this in favor of cutting back only to where new growth is emerging in mid-spring (as with borderline hardy crapemyrtles, etc.).
Missouri BG specifically mentions that brushing the foliage will release its aroma, which I suppose should not be surprising for a member of the mint family, but is still good to see confirmed after reading about so many plants whose leaves only smell when crushed/bruised/torn.
Sources: Sunset, Stoecklein, UConn, Missouri BG.
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