The Hamamelidaceae has genera with named cultivars, but only one cultivar registration authority for the genus Hamamelis.

Trees planted in cities face many survival challenges, but when they thrive they make our cities healthier, less hot, and more beautiful.

Ice or snow loads can cause branch breakage or failure of entire trees and shrubs. Branches or entire trees that fall in storms can impact homes, vehicles, power lines and block roads.

The North Carolina Botanical Center has created a step-by-step guide on how to plan for a low-waste event. This is an example of a policy that ensures garden staff plan events with sustainability in mind.

This is an example from Denver Botanic Gardens of a Material Transfer Agreement:
Living Collections Access and Distribution Form. 

This project offers a blueprint for the ideal level of maintenance needed to keep this area of the garden aesthetically pleasing and well -kept into the future.

The primary goal of a Collection Development Plan is to guide the growth of a plant collection in meaningful, strategic, and measurable directions.

This document is a concise resource considering the background, current status, and future development goals of the Forsythia Collection at the Arnold Arboretum.