Arizona Sandstone Hyssop

Arizona Sandstone is a compact Agastache hybrid valued for warm orange flowers, dusky purple calyces, and aromatic foliage. It works at the front of a sunny border or in containers, where the small upright clump can flower through the warm season. ## Size and Seasonal Color [Proven Winners](https://www.provenwinners.com/plants/agastache/arizona-sandstone-hyssop-agastache) lists an 8–10 inch height and spread, orange blooms, and spring-through-fall flowering; the page’s summary highlights summer. The [University of Texas at El Paso Chihuahuan Desert Gardens plant list](https://www.utep.edu/centennial-museum/chihuahuan-desert-gardens/plant-lists/florafest2026-1_spring_plantlist_2026-04-01.pdf) calls it a perennial under one foot tall and wide, with pale orange and dusty purple flowers over licorice-scented foliage. ## Growing Conditions Choose full sun and freely draining soil. The Proven Winners profile lists low water needs and drought tolerance, plus attraction to butterflies and hummingbirds. It also reports USDA zones 6a–9b. Its page labels the plant type “annual,” while UTEP lists it as perennial and the brand supplies hardiness zones; gardeners should treat persistence as climate-dependent and check local winter conditions. ## Maintenance Water regularly while new plants establish, then reduce irrigation when roots are settled. Remove spent flower stems if you want to limit seed formation or keep the compact mound tidy.