Overwintering Mandevilla or Dipladenia in NY

Watch Reply
More
Mark unread Print Skip to new
joelcoqui Roslyn, United States Oct 17, 2011

There are many posts on how to over winter the Mandevilla or Dipladenia (same plant, diff. species). They all have different suggestion on how to handle this and I want to do the right one. Im in zone 7 where the winters can go to 10 to 0 degrees fahrenheit. The only place I would have room is by a window in my unheated garage and the other is a dark bathtub in the basement. Do I or do I not cut it back??? I must be transplanted into another pot because its in a giant concrete pot that can not be moved. Can I wrap in it in a burlap if its in my cold garage? I have kept my orleander tree for 10 years without protection in there and I comes back every year. Thanks.

Post #8852251
Quote
WeeNel Ayrshire Scotland, United Kingdom Oct 17, 2011

I would lift it out the very large pot and re-pot it into another pot, be careful as you really only need to TRIM the roots to fit the large pot you decide to use, yes you can cut back your plant but, IF it's still flowering then don't hack it back, just lightly cut, then after flowering, cut back IF required, you need to water just enough to keep alive.

I have to grow these as in-door plants and they flower all year round, well fed and dead headed regularly.

Next year when you want to plant outside, you can plant the pot into the outdoor pot so end of season you just left the whole plant / pot inside for winter protection, I do this with standard Fuchsias etc as it is too expensive to regrow or buy new plants every year.
Good luck. hope this helps you out a bit. WeeNel.

Post #8852661
Quote
ecrane3 Dublin, CA(Zone 9a) Oct 17, 2011

They're about 2 zones less hardy than oleander which equates to ~20 degrees F of difference in temperature tolerance, so you'll want to think about giving it more protection than you currently provide for the oleander. If it were my plant, I would bring it inside and keep it somewhere upstairs with bright light vs in the dark basement or the garage where it may get too cold. Oleander is hardy to zone 8a, so it's not surprising that keeping it in the garage in zone 7 provides it enough additional protection to survive, but Mandevilla is only hardy to zone 10a (or maybe 9b) so you're going to need to keep it that much warmer.

Post #8852700
Quote
joelcoqui Roslyn, United States Oct 18, 2011

Its in a giant pot I cant bring it in...but WeeNel has the right idea. I will try that.

Post #8854263
Quote

Post a Reply to this Thread

Please or sign up to post.
Back to Forum Homepage

More Beginner Gardening Threads

Go to all Beginner Gardening threads
BACK TO TOP