The seeds that Live Monarch gives away are tropical milkweed seeds. They do not need a cold treatment, but you can soak them in water for a day. They should germinate within a week to 10 days. If they do not germinate, then they are not viable (old seed).
I recommend Monarch Watch's Waystation Seed kits:
http://shop.monarchwatch.org/product.as ... ening(base)&p=125522(base)
Product Description
To create a habitat for monarchs, you need to provide milkweeds for the larvae, nectar plants for the adults, and sufficient vegetation to provide shelter for the larvae, pupae and adults.
This Monarch Waystation Seed Kit is designed to enable you to create a habitat suitable for monarchs within the context of a traditional garden. Included are 12 varieties of nectar and monarch host plants (individual packets of approximately 20-30 seeds) and a detailed "Creating a Monarch Waystation" guide.
The Monarch Waystation Seed Kit includes seed packets of six milkweeds and six general nectar plants. Please note that substitutions may be made due to current seed availability.
Milkweed:
Butterfly Weed (Asclepias tuberosa)
Showy Milkweed (Asclepias speciosa)
Common Milkweed (Asclepias syriaca)
Swamp Milkweed (Asclepias incarnata subsp. incarnata)
Swamp Milkweed (Asclepias incarnata subsp. pulchra)
Tropical Milkweed (Asclepias curassavica)
General Nectar Plants:
Joe Pye Weed (Eupatorium purpureum)
Tithonia Torch, Mexican Sunflower (Tithonia)
Purple Coneflower (Echinacea purpurea)
Zinnia, Dahlia Mix (Zinnia elegans)
Purple Horse Mint (Monarda citriodora)
Indian Blanket (Gaillardia pulchella)
Partridge Pea (Cassia fasciculata)
Seeds packed in 2009.
For more information about Monarch Watch's Monarch Waystation Program please visit
www.monarchwatch.org/waystations