I have them coming up also. But I am sure they are from seed. First frost turns them into a slimy goo. Not many come up, but the seeds to seem to do good over the winter in more protected spots in the yard.

Congrats

Carey

Thanks for replying, I am finding all of these climate changes really amazing. Some are terrific like millions of little pink flowers and others like trying to keep moisture in my sunny deck plants are trying.

In the tougher climates of my past I never ended up with impatiens.

Welcome to Maryland! Our summers can be pretty harsh. You might want to try mulching your deck plants. It helps the pots retain moisture.

I use shredded leaves but have used shredded hardwood mulch before.

Carey

I have Impatiens from seed. It's pretty common even here where the winters can be very bad. The ones that appeared this year came up from seed from 2yrs. ago. Came up in cracks in a sidewalk no less, so the seeds are pretty darn tough if you ask me -- considering they went through two rough winters and still sprouted where the least amount of soil was available to them.