Hello, NorthernMich:
I don't have seeds I couldn't find them. but I did find the plants at Walmart of all places! so I got several and have had them for two years now. I keep them in pots, so I can bring them in when it gets cold out. I love them too much to risk them freezing don't think they'd survive our one or two weeks of really cold weather. anyway just an idea.
Sincerely; sylvar Moon

Thanks Sylvar.

There are many heirloom seed places selling the seeds and plants...I just prefer the homesteader approach :)

Here's what I filed away when I get to start stevia plants...may be able to help you.

Stevia:
Propagate by seeds or by tip cuttings taken in summer, or root division in spring. Seeds are notoriously infertile and slow to germinate. Flowering usually occurs 54-104 days after transplanting. The plant is climatically suited to from temperate to sub-tropical climates where temperatures range between 21-43C, with an average of 24C, but it will also grow in the tropics, where it prefers shade; and will also grow in cold climates with winter protection. Plants in the ground have been noted to take minimal frosts. It is a somewhat temperamental plant, and may be slow to grow at first. Even in ideal conditions, it is not uncommon for plants to die suddenly or to lose its leaves. As long as the roots are alive, the plant may regrow. Poor, loose, well drained soil is recommended, and that the plants be well-mulched so that surface feeder roots do not dry out. For gardeners in cold climates it is recommended that plants be started in large pots so that the pot can be moved to a warm verandah in winter. In cold climates, the plant may go dormant to the ground. As stevia does not over-winter outdoors in freezing conditions, the roots are lifted in autumn and stored indoors in perlite or sand and then set outside again in spring. Stevia requires regular watering in dry periods, but has poor tolerance to long waterlogging, or to saline water or soils. In its natural habitat the plant occurs naturally on acid soils of 4-5 pH, but will grow well on soils up to 9 pH. Leaf yields can be increased with a moderate application of nitrogen, phosphorus and potassium fertilizers. Plants also respond well to liquid seaweed as a foliage spray applied fortnightly. As soon as the plant flowers, the leaf production slows down, so it is an advantage to nip off flower buds, to encourage further leaf development. If the plant is left to flower, the tip leaves take on a slightly bitter overtone. Because of its gangly growth, plant several together for support. Plant will die if left go to flower, so it should be cut back repeatedly to prevent flowering.