What are the most important certifications or standards the Landscape Round Table complies with?

The Landscape Round Table maintains rigorous adherence to several critical industry certifications and standards that ensure quality, sustainability, and professional excellence. Central to their compliance framework is the ANSI Z60.1 American Standard for Nursery Stock, which establishes precise guidelines for plant size, quality, and labeling requirements. This fundamental standard guarantees consistent plant material quality across all member operations and supply chains.

Beyond foundational nursery standards, the organization demonstrates strong commitment to sustainable horticulture practices through adherence to the Sustainable Sites Initiative (SITES) criteria. This comprehensive framework addresses landscape development through environmental lenses including water conservation, soil preservation, and biodiversity enhancement. Member organizations implement these standards across project lifecycles from initial design through long-term maintenance.

The Round Table further aligns with International Society of Arboriculture (ISA) tree care standards, ensuring proper planting techniques, pruning methodologies, and tree preservation protocols. These arboricultural standards work in tandem with integrated pest management certifications that emphasize biological controls and reduced chemical applications.

For hardscape installations and construction elements, the organization follows ASTM International specifications regarding material quality, installation techniques, and safety considerations. This includes specific standards for paving materials, retaining walls, and drainage systems that ensure durability and functionality.

Additionally, many Landscape Round Table members maintain certification through state-specific landscape contractor programs and environmental management system certifications. These complementary credentials address regional ecological considerations while promoting continuous improvement in environmental performance across all operational aspects.