Catalog 06: Commercial & Industrial | Urban Green Initiative

Site Type

Commercial & Industrial

Corporate campuses, industrial buffer zones, and commercial property perimeters requiring ESG impact, pollution tolerance, and low maintenance.

This catalog is designed using the Houston Miyawaki Forest Design Guide species selection criteria — all species validated for Houston's USDA zones 9a–10a and the specific site conditions of this catalog type.

Site Specifications

Planting Density 3.5 plants/sq meter (~325 plants per 1,000 sf)

Planting Window October–March

Self-Sustaining By Month 18–24

USDA Zones 9a–10a (Houston)

Species Composition

Recommended species mix

All species are native to the Houston region and validated for this site type. Percentages represent target proportions of total planting count.

22%

Emergent

30%

Sub-Canopy

30%

Shrub

18%

Ground Cover

Common Name	Scientific Name	Layer	% Mix	Notes
Live Oak	Quercus virginiana	Emergent	12%	Houston's most iconic tree; extraordinary tolerance for urban stress, salt, and wide soil pH range
Cedar Elm	Ulmus crassifolia	Emergent	10%	Most alkaline- and drought-tolerant elm; outstanding urban tolerance and interesting flaking bark
Eastern Redbud	Cercis canadensis	Sub-Canopy	12%	Spectacular magenta-pink spring blooms; multi-season interest for high-visibility corporate sites
Mexican Plum	Prunus mexicana	Sub-Canopy	10%	Earliest native flowering tree; fragrant white February blooms; very adaptable to alkaline clay
Carolina Cherry Laurel	Prunus caroliniana	Sub-Canopy	8%	Dense glossy evergreen; outstanding year-round screening and nesting cover — site-restriction notes apply
Texas Lantana	Lantana urticoides	Shrub	12%	Outstanding butterfly attractor; long bloom season; premier perimeter planting for commercial sites
Carolina Buckthorn	Frangula caroliniana	Shrub	10%	Multi-season interest bridging shrub and sub-canopy layers; white spring flowers, fall berries
Fragrant Sumac	Rhus aromatica	Shrub	8%	Low spreading habit with golden-orange fall color; site-restriction notes apply — see Species Guide
Dakota Mock Vervain	Glandularia bipinnatifida	Ground Cover	10%	Profuse pink-purple blooms spring–fall; thrives on poor, disturbed soils; low-growing and non-aggressive
Drummond's Phlox	Phlox drummondii	Ground Cover	8%	Spectacular mass of pink/red/purple blooms March–May; rapid visual impact for new plantings

Site-Specific Guidance

Key considerations for this site type.

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ESG Reporting Package

UGI provides annual ESG metrics for each sponsored forest: carbon sequestration (tons CO₂), stormwater retention (gallons/event), native species count, and heat island reduction. Data is independently verifiable and media-ready.

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Corporate Visibility

Position the highest-aesthetic species (Eastern Redbud, Mexican Plum, Carolina Cherry Laurel) at building-facing edges and main entrances. Forest interior can prioritize ecological density over ornamental value.

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Industrial Buffer Zones

For industrial sites, increase Carolina Cherry Laurel, Cedar Elm, and Carolina Buckthorn density on buffer perimeters — these species provide maximum pollution absorption and physical screening. Maintain 10-foot clear zone along property lines.

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Employee Engagement

Corporate forests work best when employees participate in planting day. Research shows 15-minute forest exposure reduces cortisol by 20–30%. Design a maintained walking path through the forest for ongoing employee wellbeing benefit.