@Randommoose1 I have to say that is the first time I have heard that Cotoneaster is classified as invasive. My soil is heavy perhaps the roots don't escape in the same way as a lighter soil. Thankyou for letting me know. Passion Flowers can have deep tap roots that also spread.
I know, it really surprised me as well! I think it was the spread of seeds from birds eating the berries but it doesn't seem like Cotoneaster is popping up everywhere so I don't know where it is a problem, I only see it in gardens where it has been planted.
That is useful to know about the passionflower. If I get another passionflower (not sure due to not being hardy) then I will be putting it somewhere different anyway so it would be a lot further away from the house.
Minus 7 is nothing to a montana @Randommoose1 -they're hardy down to well beyond minus ten. You'd only have to worry if you lived somewhere like Braemar, or the north of Scotland generally, where it can be much lower than that on a regular basis through winter. Even here where I am, it's often well below that for spells in winter ,but I've never lost one when I've grown them. It's when they're sitting long term in cold wet ground that they can struggle - same as most of the early clematis, so good drainage is important
Their nickname is Himalayan or mountain clematis
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
@Fairygirl That's useful to know thanks. The ground there is probably cold as it is permanently shaded at the roots (even in summer) and there is clay subsoil a foot or more down. But it isn't wet as in water logged - the Montana is on the highest bit of ground in my garden (and it is lower the other side of the fence) and there are no drainage problems in that area (or anywhere in my garden). But maybe the water holding ability of loam over clay might be more than it likes? Or would it prefer it if I removed the woodchip mulch in winter?
At least it is only the stems on this that have died, not the roots, and it is shooting again. The passionflower was stems and roots - I haven't come across crunchy roots on a plant before that! My big Griselina is very poorly as well with twigs almost all black and dead. I hope that survives as it is the biggest shrub I have and one of my favourite plants. I had a variegated Pittospormum die as well but I knew before planting that it was only half hardy so no surprise there. At least I know to avoid half hardy plants from now on. I will see if the Trachelospermum survives future years or not. It is perfectly healthy now but then has probably been in a greenhouse all winter.
Posts
That is useful to know about the passionflower. If I get another passionflower (not sure due to not being hardy) then I will be putting it somewhere different anyway so it would be a lot further away from the house.
https://www.davidaustinroses.co.uk/products/the-lady-of-the-lake-rambling-rose
Their nickname is Himalayan or mountain clematis
I live in west central Scotland - not where that photo is...
At least it is only the stems on this that have died, not the roots, and it is shooting again. The passionflower was stems and roots - I haven't come across crunchy roots on a plant before that! My big Griselina is very poorly as well with twigs almost all black and dead. I hope that survives as it is the biggest shrub I have and one of my favourite plants. I had a variegated Pittospormum die as well but I knew before planting that it was only half hardy so no surprise there. At least I know to avoid half hardy plants from now on. I will see if the Trachelospermum survives future years or not. It is perfectly healthy now but then has probably been in a greenhouse all winter.