By Moatrat
Tyne And Wear, United Kingdom
In the north of England should my chrysanthemums be vernalised and what time period before I bring them into the greenhouse
- 16 Oct, 2019
Answers
I think a lot has to do with the variety you have and the severity of your winter. They do need that cold period, but not too cold and not too wet. Also, a few inches of mulch over the crown for the winter will afford some protection, but no guarantees. Mums are fickle plants. Some will return, others don't and others only last a few years. At least you'll have an excuse to buy new plants. They are very inexpensive anyway but a good value with their brilliant colors. I can pick up 3 at the supermarket for $10.00 - not bad if only for a season.
16 Oct, 2019
Being by the sea we don’t get long periods of frost but always cold I will lift them in January into greenhouse. Thank you
17 Oct, 2019
Again thanks everyone
17 Oct, 2019
Around the same time you'd lift Dahlias to store for winter really, and when flowering is done or almost done. They're hardy down to -5deg C, so you can wait till later on (say November) to do it. Instructions in the link below under Ongoing Care
https://www.rhs.org.uk/plants/popular/chrysanthemum/growing-guide
16 Oct, 2019