Help with my herbs on balcony

Hi pikkie, welcome to Gardeners Corner. As drastic as it sounds I would give the Herbs a "hair cut" by about a third to some green buds or leaves to encourage new growth. Most Herbs like sunshine and good drainage and the "soil" shouldn't be too rich. When you say "soil", pikkie, I take it you mean compost? as ordinary garden soil should not be used as it can set like concrete when dry. I would use a mixture of general purpose compost, sand and grit if you do decided to change the growing medium and make sure the containers do have holes for drainage. Most Herbs, if left, look a bit tatty at this time of year so don't give up on them just yet.

 

Hi pikkie, well, as good as Compost is it's best not used alone in a container especially if the plant(s) is going to be in there for long time as it can dry out and is a "b" to wet again
So, I would recommend that perhaps using a mixture of say, 3 parts Compost, 1 part sand and one part grit, that will give a better draining growing medium while also being easier to water should it dry out.