Promoting Non-Invasive Plants to Protect California’s Natural Beauty, Wildlife and Communities

PLANTRIGHT_LOGO_large JPGInvasive plants damage California’s land and impact people. They reproduce quickly—outcompeting native plants and animals, increasing flooding risk, and escalating fire danger. Nearly 50% of all known invasive plants are of horticultural origin. That’s why collaborating with nursery professionals is key to solving this costly problem.

PlantRight unites a diverse alliance of horticultural industry leaders—including The Home Depot in California, Lowe’s, Orchard Supply Hardware, and local, independent garden centers—to protect our state’s unique biodiversity by promoting non-invasive plants. Keeping invasive plants off store shelves means Golden State taxpayers avoid exacerbating the over $80 million annual burden of removing horticultural pests from our wildlands.

Periwinkle is a fast-growing plant that crowds out other vegetation and degrades wildlife habitat.

Periwinkle is a fast-growing plant that crowds out other vegetation and degrades wildlife habitat.

PlantRight is partnering with leaders in California’s nursery industry to find cost-effective ways to stop the sale of known and emerging ornamental invasive plants and prevent the introduction of new ones to protect California’s unique biodiversity and natural beauty. Key components of our strategy include:

  • Engaging retail nurseries, landscape professionals, and horticultural growers to voluntarily remove known invasive plants from their inventories and replace them with non-invasive alternatives. Learn more here.
  • Preventing the introduction of new invasive plants by deploying PRE (Plant Risk Evaluation), the first WRA (Weed Risk Assessment) tool designed specifically for the horticultural industry that is faster, easy to use, and 98% accurate in predicting invasive behavior by region. The PlantRight PRE equips propagators with the ability to determine a plant’s invasive risk level (to know before they grow) for the region and marketplace in which it is being evaluated.
  • Conducting an annual statewide survey of California nurseries and plant retailers in partnership with the UC Master Gardener Program to assess the availability of invasive plants and guide PlantRight’s strategy in promoting safe, noninvasive alternatives. See the results of our 2014 survey, which shows that more than 80% of the surveyed nurseries were not selling invasive plants on PlantRight’s original list.
  • Providing science-based information to California’s nursery industry that is clear, practical and accessible.
  • Reinforcing positive behavior by recognizing nursery and landscape professionals who are: protecting California’s natural spaces; protecting taxpayer wallets, and Planting Right!

Visit the official PlantRight website to find out how you can help protect California by avoiding invasive garden plants.


Landscape photo courtesy of faroutflora.


  • Secured committments from The Home Depot, Lowe’s and Orchard Supply Hardware to stop selling invasive plants on PlantRight’s list
  • 75% reduction in sales of the worst 19 invasive plants on PlantRight’s list. PlantRight is now focused on removing the final four plants from store shelves
  • 70% reduction in the number of small, medium and big-box retailers statewide selling invasive plants
  • Developed weed-assessment tool with a 95% accuracy rate in screening out new invasive plants



Steering Committee Members

Plant List Sub-Committee Members

Plant Risk Evaluation (PRE) Advisory Group

Industry Partners

7 Day Nursery

Altman Plants


American Society of Landscape Architects – Northern California Chapter

Association of Professional Landscape Designers, California Chapter

Ball Horticultural

Bay Friendly Landscape & Gardening Coalition

Belmont Nursery

Big Oak Nursery

California Association of Nurseries and Garden Centers

California Invasive Plant Council

California Landscape Contractors Association

California Native Plant Society

City Farmers Nursery

Eco Landscape California

Green Acres Nursery & Supply

Grower-Shipper Association

The Home Depot Garden Centers, California

Horticultural Research Institute


McShane’s Nursery and Landscape Supply

Mission Blue Nursery

Monrovia Growers

Orchard Supply Hardware

Papenhausen Hardware & Nursery

Santa Barbara Botanic Garden

Sloat Garden Center

Solana Succulents

UC Davis, Arboretum

UC Davis, California Center for Urban Horticulture

UC Davis, Department of Plant Sciences

UC Division of Agriculture and Natural Resources

UC Master Gardener Program

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