Return to the Impatiens Forum | Post a Follow-Up

Volunteer Impatiens in zone 4

Posted by fieldofflowers 4a (My Page) on
Wed, Aug 6, 14 at 4:22

How low a zone can impatiens reseed?

This year I have discovered impatiens (walleriana variety) re-seeding themselves in my Minnesota garden. I have seen at least about 3 plants so far.

This was even after the harsh winter of 2014. Granted they are somewhat sheltered being in a downtown area and against a huge building. They may or may not have experienced the -30F, but they were definitely frozen.
I am quite surprised. Last year I had quite a show with i. walleriana, but decided not to plant them this year because of the downy mildew.
But some time in early July I started seeing volunteers. I let them grow and sure enough the flowers look like the ones I had last year.

I thought these were more tropical plants (or at least requiring temps well above freezing), so seeing anything, even seeds surviving is quite a surprise to me. Anyone else have experience with volunteers?

Follow-Up Postings:

RE: Volunteer Impatiens in zone 4

Anyone? Or is this a first time case? Or is it an effect of the supposed urban heat island? I read that St.Paul/ Minneapolis tend to be a little warmer than the rest of MN, but last winter it wasn't that much warmer. Perhaps the wood chip mulch and concrete structures insulated the seeds a little?

I was hoping maybe other people have had a similar experience. I googled the topic and found people reporting impatiens reseeding in zones 7 and up, but not so much for zones 6 and under.

I'm guessing by the lack of replies or other topics found here that this must have been a freak case? Maybe I need to purposefully find impatiens seeds and throw them on the ground in autumn to see if it happens again.

Also an annual: Petunias - I saw a fair amount of them survive the 2014 winter and sprout up in various places including cracks in sidewalks and in parts of the back patio garden.
And judging by the color of the flowers and patterns of the I. Wallerina, I can say for sure they had to have come from my garden last year vs. any other display currently planted elsewhere in the city.

This post was edited by fieldofflowers on Tue, Aug 26, 14 at 2:16

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Impatiens Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here