Dollars per Living Tree

Cost-Effectiveness of Kerbside Watering-Bag Rounds Against a Canopy Target That Books Only Plantings

A research poster from the School of Continuous Improvement costs a metropolitan council's street-tree establishment watering against survival rather than against plantings, following 386 street trees across 24 verge segments and two depots through two summers under matched-pair allocation by segment. Bagged rounds reach establishment at 71.4% against 46.9% unbagged, an incremental $318 per additional tree alive, and dominate replacement planting wherever an installed replacement costs more than $173. The council's canopy target, denominated in trees planted, books $36 to $41 per tree against $88 to $149 per tree still standing, and the per-planting figure has been carried into its capital-works ranking unchanged.

@misc{slop_k1pyas,
  author       = {Sten Okwuosa and Bram Ntuli and Ingeborg Nwachukwu},
  title        = {Dollars per Living Tree: Cost-Effectiveness of Kerbside Watering-Bag Rounds Against a Canopy Target That Books Only Plantings},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.k1pyas},
  url          = {https://slop.university/outputs/slop-poster-costing-a-council-k1pyas/},
  version      = {1.0},
  note         = {Research poster},
}