My poor Hebe

If it will be tough to dig out I would cut it back first if it was mine. I do love my secateurs 🤣

I had a hebe in the ground which was beautiful for many years, but suddenly started to die back. I tried cutting out the brown and dying bits to begin with, but the dieback continued to spread (which I have since learned is common), so that in the end it had to come out. It took quite some time to get all the roots out as it was well established, but in the end, with help, I succeeded.
Although I was sad to lose it, the space it left was quite substantial which has since been planted with a variety of smaller plants and flowers that look really lovely - so there was something good to come out of my initial disappointment in the end.
Certainly try by just cutting it back - yours might revive, but my own experience was that it gradually worsened.

I think that once it's started to die it will die. I have much the same thing with a previously thriving rosemary which started dying back this summer. Cutting out the dead bits kept it looking halfway decent until now, but I'll dig it out soon. I took cuttings, which have all rooted, so I have a replacement ready.

Have you thought about taking some cuttings if you want to replace it with the same plant? They'd probably still take on a windowsill if you don't have a greenhouse.

I would try cutting it back quite hard and seeing how it is next Spring

I had this problem with a couple of Hebe's in pots, one was cut back removing the dead bits every time they appeared. The other one was just left and yes it died but I've noticed that the one I cut back completely in the end last year has put out new shoots this year. It's a fraction of the size it was but hey it's not dead any more, just looks like a cutting. I'm hopeful the other one that was just left might also put out new shoots, you never know. I'll give it a year and see what if anything happens.

Thanks everyone I’ve noticed this morning another Hebe that’s in my front garden is doing the same thing, how annoying.
I think I’ll cut them both back and if there is no new growth in Spring I’ll attempt to dig them out.

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Well i went out to cut my Hebe severely back and found that its busy sprouting new leaves on what appeared dead branches now what do I do?

It’s probably been affected by the hot summer, not necessarily drying out but sunburn.
The brown leaves will drop off and leave the new ones at the end of stems. This has happened to mine. In the spring prune back some of the stems and it will sprout new growth.

I’ve lost all three of my long-established hebes this year. All flowered beautifully then turned brown and that was that ☹️
I’ve had them dug out and will have a think about what to replace them with.