NIGP 59533: Grates, Guards, and Other Protective Devices for Trees and Shrubs

NIGP 59533 Grates, Guards, and Other Protective Devices for Trees and Shrubs (Item) covers protective and support infrastructure for trees and shrubs in municipal and county settings. State and local governments procure watering devices, tree guards, and related protective equipment under this code to support newly planted trees and street tree establishment programs. The City of Tampa's RFQ for 400 Tree-Mendous Tree Diaper watering devices exemplifies the scope: self-recharging water bags specified to establish newly planted trees, with strict brand and no-substitution requirements. Purchasing bodies include city parks and recreation departments and county facilities and landscape management divisions, though activity appears episodic rather than continuous across a large issuing-body base.

Recent solicitation activity is concentrated in the Southeast. The City of Tampa (Florida) posted an RFQ on September 14, 2026 for 400 watering devices with a response date of September 16, 2026; the City of Jackson (Michigan) issued an IFB on July 21, 2026 for furnishing, delivering, planting, and maintaining approximately 200 street trees across a minimum of 15 species for Fall 2026 planting, with bids due July 14, 2026 and Davis-Bacon prevailing wage compliance required. DeKalb County (Georgia) posted an ITB on June 9, 2026 for reconstruction of the DeKalb Tennis Center, including IT and low-voltage infrastructure, with bids due July 13, 2026. The Jackson IFB offers potential for multi-season renewal through Spring 2028 and includes performance scoring on price, corporate accountability, workplace safety, workforce development, and social equity.