The number of hours of sun is also determined by summer conditions, so the full sun as @JennyJ mentions, means summer hours. A south facing, or south west, is usually best, as long as there's nothing else blocking that sun. It's variable of course, but thyme copes best with as much sun as it can get. I still wouldn't be feeding them - far better to make sure the soil mix they're growing in is checked/amended each year or so if they have to stay in pots. Too much food can just promote a lot of soft growth which can then be adversely affected when cold weather arrives. Of course, that also depends on location, and I've no idea where you're located or what your climate is like. There's a huge difference between the south of England and the north of Scotland when it comes to plants and their care. Rosemary needs protection up here, or cuttings taken to overwinter. Unreliable otherwise.
Can growth on plants toughen up before winter? I heard that high-potassium feeds support the hardiness/protection mechanism of the plants you feed it with (if you do it relatively consistently in the growing season), don't know if that works on new growth though.
It does help strengthen plants but the soft new growth still needs time to mature and harden before winter so it's best not to feed it after mid July.
As has been mentioned, plants in pots need feeding as the planting compost only has feed to last a max 90 days so you need to top dress pots every spring and apply a slow release feed such as pelleted chicken manure or BF&B and use an occasional liquid feed between regular waterings from spring to mid summer.
The exception to feeding later than mid July are plants like citrus which are not hardy and get taken into shelter for winter.
Rosemary, thyme, oregano and sage are all Mediterranean herbs which need full sun and good drainage.
Vendée - 20kms from Atlantic coast.
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Producing soft growth in late summer will make plants more susceptible to winter damage.
When you don't even know who's in the team
S.Yorkshire/Derbyshire border
I have no idea if those apply in this context but I thought it would.
As has been mentioned, plants in pots need feeding as the planting compost only has feed to last a max 90 days so you need to top dress pots every spring and apply a slow release feed such as pelleted chicken manure or BF&B and use an occasional liquid feed between regular waterings from spring to mid summer.
The exception to feeding later than mid July are plants like citrus which are not hardy and get taken into shelter for winter.
Rosemary, thyme, oregano and sage are all Mediterranean herbs which need full sun and good drainage.
You don't feed shrubs like Buddleia in winter
I live in west central Scotland - not where that photo is...
When you don't even know who's in the team
S.Yorkshire/Derbyshire border