Problems with Mandevilla Sundaville :-( Please kindly help

Hello to all Forum members,

I kindly ask for your help in diagnosing the problem with my Mandevilla Sundaville. In the summer it looked wonderful and dense - beautiful flowers, dense leaves, healthy shoots. I know that it is a plant that hates cold, so according to the recommendations on the label, I moved it indoors at the end of September to overwinter.

I stick to the recommendations not to expose it to the sun, I stopped fertilising and water occasionally and a little, just so that the soil is slightly moist. The temperature is 20 degrees in the room.

Ever since I started wintering it, and I know it needs to rest, some strange things have been happening. It begins to lose a lot of leaves on the upper part, then green shoots grow, which then wither. As if it was slowly dying, and then green, juicy shoots come out, which then wither. I will add that the lower part is quite healthy and it looks as if this problem does not affect it.

I don't know if this is normal and how I should deal with it. If this is normal, I will simply remove fallen leaves and cut back dried shoots. I've put so much care into it all summer (I bought it for the first time this season) so I don't want it to completely wither away and die.

Please advise if this is a completely normal state and how to deal with it so that in spring I can enjoy the thicket of leaves and flowers again.
I will add that I do not see symptoms of a fungus or parasite.

Thank you very much in advance for your help and warm greetings to everyone.

 

I've tried a couple of these, most recent was last year, I've tried keeping warm and I've tried keeping cool and fairly dry in winter.

Both attempts failed, last year I got it to early spring before, instead of starting to grow, it just withered and died.

I dont think dark days help.

Not sure what the answer is.

 

Firstly, welcome.

Mine live permanently outdoors and have had some for many years. Mine lose most of their leaves although we don't get frost. Sorry but I cannot give advice on indoor ones but good luck.

 

Thank you kindly for your responses - just to clarify, I keep my Mandevilla outside and only took it indoors due to severe weather where I live, as it is apparently advisable to bring it indoors for winter time?
Still hoping that someone can help me out, I appreciate the responses above, means you took some time to sympathize with me :-)

 

Yes they are definitely not frost hardy, so you did right bringing it in.
Mine had the usual "tea bag" type thing around the base, its what they root the cuttings in, but often they restrict good rooting once potted on, but not saying that is always going to be a problem.