Monarch Watch sells milkweed by the flat, which means you will be making a minimum purchase of 32 plants for most areas. This is the amount of plants that would be appropriate for a 100 square foot garden or larger.
By planting milkweeds – the host plants for monarch caterpillars – and nectar plants for adult monarchs and pollinators, you can help maintain the monarch migration and sustain the pollinators whose pollinating services maintain our ecosystems.

Here is the link to the new site, where you can:

  1. Enter your zip code to determine which species are available for you to purchase
  2. Create a secure online account, and
  3. Purchase milkweed using your credit card, which will be billed at the time of purchase

If you are looking for a smaller amount of native milkweed you can search for vendors on the  milkweed vendor list available via the  Milkweed Market page. Be sure to ask vendors if the plants are insecticide-free.