Help - what is going on in my garden?

Got cold?

Mineral deficiency? Waterlogged?

I'd go for mineral defiency as well. If you have established perennials they may need dividing and re-planting to prevent them losing vigour.

Thank you for your replies. None of the plants are very old and are in different parts of the garden but if it is mineral depletion, how would I put minerals back in to the soil? Can you tell that I'm a natural gardener?

Lots of questions come to mind, have a look at these sites.

www.gardeningknowhow.com/plant-problems/environmental/leaves-turning-reddish-purple.htm

www.rhs.org.uk/advice/profile?PID=456

Which plants are losing colour kitty?
I have to feed my rhododendrons and camellias with Miracid to keep the soil sufficiently acid, or the leaves start going yellow.

Everything else gets lots of compost & the roses get rose food.

Do you mean really variagated kitty or just yellowing?Maybe need iron? there are lots of feeds in garden centres for this purpose.

Thanks for your replies. The plants affected are a sedum, a few Japanese anemones, some albums, bachelor's buttons.

We do put compost over the beds and fork it in. The wild garlic and valerian are unaffected!

it could be the excessive rain we have had, it washes nutrients away. I suggest you give them all a good feed.

I had to google bachelor's buttons kitty but I have to say that those, and sedums, are apparently indestructible in my garden

I would take merlot's advice and divide them and put some in pots so you can monitor them and see if the new compost you put them in helps at all.

Proof read kitty.

Alliums not albums (all except the flipping wild garlic!!)

I am going to try feeding them and will divide if that doesn't work - seems like less effort that way round.

Thank you for all your help.

I am on an acid sandy soil and sedums and Rhodos camellis do well here. Where I have seen wild garlic growing in abundance has been in the limestone areas of the Peak District. I suspect you are on limey soil.