We have a large septic tank (with associated scent) covered by a concrete slab about 3 foot by 5 foot in the garden. I want to plant around it using scented plants/herbs/shrubs trees. Do you have any suggestions.? I am hoping to stick to the colours brown/orange/yellow in my 1/2 acre new garden
Plants will not effectively combat the smell of a septic tank, but this problem usually settles down in time. The problem is a technical one to do with the function of the tank and how it is vented and where it is located.
You will find lots of suggestions of plants of various kinds in our Plant finder: https://gardenie.wpengine.com/plant-finder