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Orange hawkweed
B3
Posts: 27,473
Found this in my garden. When I googled it, opinion varied from ' pernicious weed - shoot on sight' to 'it's a lovely plant - doesn't do any harm in my garden'.
It's growing on some bone dry inhospitable London clay.
Should I get rid of it or leave it. Have removed flowerheads just in case. Apparently it's a self seeded and runner.
In London. Keen but lazy.
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Posts
It's all a matter of opinion and what sort of garden you want B3. I like it. If I was trying to grow alpoines and other small plants I probably wouldn't want it
In the sticks near Peterborough
Pretty and liked by insects
if uncontrolled it spreads like wildfire and if it gets into your lawn 
So ........ as you've done, take the flowerheads off before they set seed.
I think they clump rapidly rather than run, so just keep an eye on them and lift and divide any that look as if they have Napoleonic intent!
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Its a gorgeous looking flower. I'd keep it. Everyone has their own opinion on weeds.....some are acceptable and some aren't but if it has arrived by itself and is growing in ghastly soil, let it get on with it.
It can be invasive if allowed to set seed but as long as you dead head it should be OK.
It's native to European alpine regions so likes good drainage and poor soils. Not the sort of thing you want invading Oz or Canada or other parts of the world with their own native diversity to nurture or control.
All wildflowers welcome in my garden so long as they don't abuse my hospitality!
For me it would be golden rod, euphorbias, laburnums and yellow lysimachia.
I have some orange hawkweed in pots waiting to be planted out in a slightly wild area next to my insect hotel. It can spread where it likes in that spot and any seeds will be blown onto the adjacent boggy pasture where they won't like the conditions so it won't be a problem for neighbours.
just noticed several specimens in my 'lawn' - anything green and low-growing stays but I've dug out the hawkweed just in case. will leave it in paving cracks