All plants, shrubs and trees are purchased according to their compatibility to hardiness zones 4A, 5A, 5B and 6A. Preference is given to native plants and drought-tolerant species. Native plants are are cultivated on all four campuses, and one of the biggest benefits is they don’t require irrigation, fertilizer or pest control beyond what Mother Nature provides:
- Penticton Habitat Garden features indigenous species of the South Okanagan. The centrepiece of the Duncan Avenue entrance to campus is maintained by staff volunteers.
- Nancy Clark Garden in Salmon Arm is nestled in the courtyard beside a pond that remains open year-round due to an underground spring
- Vernon campus overlooks coulees that traverse into Kalamalka Lake. The Ellison bench is dotted with arrowleaf ferns, rye grass, common snowberries and Oregon grape.
- The Kelowna campus feature dogwood trees, barberry, juniper bushes, yarrow, creeping thyme and sedge grass.
Having adjoining green space it is important all neighbors work collectively to manage common pests. Turf areas are treated with granular corn gluten for annual seed germination suppression. Alfalfa – maize 5-1-5 and sea kelp extract are used as fertilizers. “Zeba” a moisture retention product is used in planters and overly arid areas. In conjunction with sunshine, horticultural vinegar is used to control weeds in paved areas. Additionally annual aeration and top dressing using organic mulch help to sustain the turfed areas. Trees are monitored by the certified arborists from the two companies listed. In 2007 a specimen tree value report was compiled. At that time the total value of the trees at the college campus locations was a staggering $1,752,760. It is important to maintain such a growing investment. The spring of 2010 saw an infestation of aphids populating the maple trees this was treated using water sprays where feasible and ladybugs on the trees in the courtyard. All irrigation systems at the four campuses are linked to a central irrigation management and monitoring system at the Kelowna campus, which has been expanded to include wireless satellite guided weather information programming control. Rain sensors at each campus monitor local weather conditions and control irrigation accordingly.