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Plant Materials

CASE STUDY

IRC 2023 Annual Report: Native Plant Materials
IRC manages several native plant nurseries and a 14-acre Native Seed Farm in Irvine.

IRC manages several native plant nurseries and a 14-acre Native Seed Farm in Irvine.

High-quality native plants and seeds are critical to the success of IRC’s habitat restoration and enhancement projects. To produce this important material in the large amounts needed, IRC manages several native plant nurseries and a 14-acre Native Seed Farm in Irvine.

In 2023, native plants from IRC’s nurseries and farm provided the base for an innovative butterfly enhancement project. Butterfly populations have been declining, and IRC produced 12 important nectar plant species and 11 host plant species for caterpillars including monarch butterflies. Volunteers helped plant 11 butterfly plots scattered throughout OC Parks’ Limestone Canyon Nature Preserve. In future years, the sites will be maintained and monitored to study whether they are boosting local butterfly populations.

 

In 2023:

  • Harvested over 500 pounds of seed from 40 different species at the Native Seed Farm.
  • Delivered 550 lbs. of farm-grown native seed to Conservancy restoration sites, including seed produced in previous years.
  • Provided 23 species of nectar and host plants for IRC’s native butterfly restoration and enhancement program.

 

Check out the full 2023 Annual Report here.