Cornell Cooperative Extension

Sullivan County
coneflowers and black eyed susans (echinacea & rudbeckia)
Image by Sandy Repp

Monarda, Echinacea and Rudbeckia

Perennials

Resources

Perennials, a 3-page pdf from CCE of Suffolk County, includes information on soil preparation, propagation, receommendations on easy-dare perennials, and recommended publications.

Perennial flower trials at Cornell University - photos and data on hundreds of perennial varieties from the test plots at Bluegrass Lane

Dividing Perennials is a 5-page handout from CCE-Chemung Cooperative Extension that covers how and why to divide some common perennials.

Cornell Horticulture offers an illustrated list of their top 15 perennial-and-bulb combinations on their website at: http://www.hort.cornell.edu/combos/FeaturedCombos/Best15Combos/

Perry's Perennial Pages offers on-line perennial and related horticultural information on a centralized database. 

Last updated January 31, 2024

Lawns & Ornamentals

Find Your Zone!

2012 USDA Hardiness Zone Map

The 2012 USDA Plant Hardiness Zone Map helps gardeners and growers determine which plants are most likely to thrive at a location. For the first time, the map is available as an interactive GIS-based map, for which a broadband Internet connection is recommended. Users may also simply type in a ZIP Code and find the hardiness zone for that area.

Events

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