NANPS Seed Exchange

The 2023 – 2024 Seedex list

The NANPS Seed Exchange started in 1988 and has been running continuously ever since. There are over 10,000 species of vascular plants native to temperate North America. Our seed exchange offers you the chance to increase the population of a few of these by:

  • Growing native plants and offering some of their seed to our Exchange* or;
  • Requesting seeds and planting them in your garden or;
  • Both of the above!

The success of the NANPS Seed Exchange relies on your participation. See below for more information on how to donate and/or request seeds.

The Exchange is open to all members. If you are not yet a member, you may join online now or include your membership form with your seed request.

New to seed collecting or growing native plants from seed? Review NANPS’ guidelines for seed collection and indoor native seed stratification tips.

*Seeds are most often contributed from NANPS members’ gardens but donations of seed ethically collected from wild sources are also welcome (less than 10% from a healthy population of relatively common species, otherwise do not collect!). Once seed is sent to us we endeavour to store it appropriately (e.g. moist medium for hydrophilic seed, refrigeration at the appropriate time). We are only able to do this after the seed is mailed to us.

Seed Donation

Seed Requests and NANPS Seedex List

Germination Requirements