Honeysuckles of that size need a great deal of water deep at the roots. They are plants of damp woodlands and hedgerows.
The fact that yours is planted close to a fence and surrounded by grass over the roots and almost up to the stem mean that no matter how much it rains it is unlikely to get enough to supply all that foliage.
I would cut it hard back to its main framework in Feb/March … then remove the turf from a semicircle with a radius of at least 0.5m around the main stem, water it slowly and deeply (two buckets full of water three times a week) and mulch the cleared area with organic matter (well rotted manure, good garden compost, soil improver) keeping it from touching the stem.
Cutting it hard back at that time of year will reduce the flowering next year but it will save the honeysuckle and greatly improve its appearance.
Then give it at least two buckets full of water at least twice a week whether it rains or not. More if we get a hot dry spell. Do this from spring through until the end of August.
You cannot overwater a honeysuckle planted in the ground.
Hope that helps. 😊
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
I suspect it is lack of moisture if you look at what is going on, on the other side of the fence. It looks like a gravel drive and footpath so virtually no rain getting to the plant's roots on that side as well as a massive head of foliage keeping rain from the roots on your side. A hard prune and lots of watering might save it.
The mulching looks OK. Next job is the pruning. Honeysuckles are pretty tough snd it should grow back with new green growth. I once cut down a huge and tatty one to about a foot tall and it grew back looking healthier than before.
Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
The other side is another garden, it has grass, so I assume it’s similar to what is on my side
i will prune it next weekend and let’s see what happens. My worry is that it started to wilt suddenly and really quick, that’s why I thought it had any disease
The distance between the house and the fence does not look very much so I doubt if any rain gets to the soil on their side. The grass will take whatever does fall, leaving it bone dry against the fence on their side. It looks as if there might be paving along the side of the house, stopping rain again. Desert conditions for plants. Plants do collapse suddenly.
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
A hard prune and lots of watering might save it.
i will prune it next weekend and let’s see what happens. My worry is that it started to wilt suddenly and really quick, that’s why I thought it had any disease
Plants do collapse suddenly.