Crown of ThornsYear Round Pink Blooms That Thrive in Phoenix's Toughest Heat Crown of Thorns (Euphorbia milii) is one of the most reliable flowering succulents for the Phoenix Valley delivering vibrant pink blooms virtually every day of the year. This Madagascar native combines eye catching color with extreme toughness, thriving in full sun, reflected heat, and drought conditions that would wilt most flowering plants. Whether you're adding color to a Scottsdale

The finely textured

As a soft blue hybrid it can scar in a hard freeze

5-foot on-center spacing the clumps knit into a continuous waxy blue-green band within a season or two

and other pollinators each spring

Is Senita related to Totem Pole cactus

Foliage Evergreen — blue-green rosettes year-round Bloom Color Orange-red tubular flowers on tall spikes

White night flowers open in summer for moths and bats

In a hard frost below the mid-20s

Backfill with native soil — a 20% compost blend helps but avoid heavy amendments

Summer (May to Sep): Peak performance in extreme and reflected heat

Wildlife-Friendly Desert Gardens

Warm soil with cool nights mirrors its native Andean rhythm for strong root establishment