Quick Facts

The Botanic Garden Collection

  • 1200 types of woody trees and shrubs
  • 2200 types of hardy herbaceous plants
  • 3200 types of tender herbaceous and woody plants in greenhouses
  • 6600 different kinds of plants, with altogether approximately 10,000 total on campus

Lyman Conservatory

  • Size: 12,000 square feet
  • Age: Various glasshouses date from 1895, 1901, 1952, and 1981
  • Average temperature: Varies by house, with minimum of 50°F (10°C) in coolest house and 70°F (21°C) in Palm House, and a summer maximum of over 100°F (38°C) in all greenhouses, even with shading and hosing down!
  • Heating: Low-pressure steam
  • Irrigation: Hand watering

Campus Arboretum

Botanic Garden staff members have responsibility for all campus trees; all named gardens, including Capen Garden and Trudy’s Garden (at the Alumnae House); the area within the triangle of Elm Street, Green Street and College Lane; and the areas surrounding Ford Hall, Sage Hall and the Mendenhall Center for the Performing Arts. Other areas of campus are maintained by Facilities Management.

  • Size: 127 acres
  • Location: Northampton, Massachusetts
  • latitude: 42° 19' N longitude: 72° 38' W altitude: 61 m (190 feet)
  • USDA Hardiness Zone: 5a/5b
  • Meteorological data:
  • Average annual precipitation: 1092 mm (43 inches)
  • Absolute maximum temperature: 38°C (100°F)
  • Absolute minimum temperature: minus 30°C (minus 22°F)
  • Average annual temperature: 9.1°C (48°F)
  • Average monthly temperature: Jan., minus 4.8°C (23°F) Feb., minus 3.2°C (26°F) Mar., 1.7°C (35°F) Apr., 8.3°C (47°F) May, 14.0°C (57°F) June, 19.2°C (67°F) July, 22.0°C (72°F)Aug., 20.8°C (69°F) Sept., 16.7°C (62°F) Oct., 11.3°C (52°F) Nov., 4.9°C (41°F) Dec., minus 2.4°C (28°F)

Awards and Recognition

I come to enjoy and respect the work of the Botanic Garden more every year.  The outdoor gardens are lovely and substantive. The Lyman Conservatory is packed with interesting plants and the shows each spring and fall are spectacular.  The staff is wonderful.  It is the ideal small Botanic Garden packed with opportunities to learn about horticulture and beautiful too. 


Lynden Miller, Smith Class of 1960, Public Garden Designer