Broadmor Plant Health Resource Center

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Updated Summer, 2026

What to know about Broadmor Landscapes

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The Current State Of Plant Health In Broadmor:

Updated by Cameron, ISA Certified Arborist
June 2026

Broadmor’s 35 to 50 year old landscape hits its hardest stretch in summer. We’re in peak heat with monsoon season active (June 15 through September 30), forecast hotter and wetter than normal, while the Valley stays in drought under Stage 2 water rules. The pattern across the neighborhood is consistent: aging ash in decline, Chinese elms carrying the canopy forward, and desert-adapted species proving their worth. Here’s what to focus on now.

Heat & Smart Watering Come First

High heat and warm overnight lows stress the whole canopy, and drought rules mean watering has to be efficient. Water mature trees deep and infrequent to the full root zone, and keep desert-adapted shrubs off any high-water or turf zones.

Monsoon Storm Prep for Aging Ash

Broadmor’s older ash trees are thinning, dropping branches, and the most likely to fail in a microburst. Have any ash over 30 years old, or showing upper-canopy dieback, professionally evaluated and thinned before the next storm. This is the top safety priority of the season.

Aging Ash & Borers

Summer heat accelerates decline in already-stressed ash, and boring insects move in as the trees weaken, showing as upper-canopy dieback, bark splitting, and frass at the trunk base. Get declining ash assessed now to decide whether targeted care can extend its life or whether replacement planning should begin.

Chinese Elm: The Bridge Canopy

Chinese elms are generally healthier than the ash and will carry Broadmor’s shade forward, so they are worth investing in. Keep them deeply watered, watch for elm leaf beetle activity in the heat, and monitor for Texas root rot, which spreads fastest in hot soils.

Palo Verde Root Borer

These large beetles emerge during monsoon, and their grubs feed on palo verde roots for years before symptoms appear above ground. Keep palo verde healthy and lightly thinned for wind resistance, since vigorous trees resist borers best.

Texas Sage, Tecoma & Hibiscus

Texas sage is at its summer best and declines if overwatered, so keep it low-water. Tecoma blooms hard in the heat with deep, regular water, while hibiscus needs steadier moisture and some protection from harsh afternoon sun to avoid heat scorch.

Summer Action Items for Broadmor Homeowners

1. Switch to deep, infrequent watering. Reach the full root zone of mature trees, and move Texas sage and other desert shrubs off high-water zones.
2. Storm-proof aging ash now. Have any ash showing decline professionally thinned and evaluated before the next monsoon push. Top safety priority.
3. Invest in your Chinese elms. Deep water, watch for elm leaf beetle, and monitor for Texas root rot to protect the neighborhood’s future canopy.
4. Thin palo verde for wind resistance. Light structural pruning reduces storm damage, and watch for root borer beetles after monsoon rains.
5. Book a summer health check. A walkthrough now catches storm-risk limbs and heat stress before they become emergencies.