One of the finest of the dwarf, non-weedy ajugas is the amazing Ajuga tenorei ‘Blueberry Muffin’, which is in full splendor in the garden this week. We grow this in half day sun, with slightly moist, but well-drained soils. We love using these groundcovers as “green mulch”, where they help retain moisture and suppress weeds without the need for traditional mulch.
Also flowering nearby is Ajuga tenorei ‘Cordial Canary’. The growth habit is very similar, but this gem has golden foliage. We just love these dwarf, non-weedy groundcovers.
Regarding Ajugas…I’m still trying to work out some curious experiences as regard to a possible link between their flower-colours and soil-conditions ! And where I a couple of times – over here, in the N. European Alps – happened to come across some very nice & bright pink forms of, I believe, Ajuga genevensis L., – and once even discovered an interesting population where about every second individual had pink & every second had light blue flowers.
However…EVERY TIME I TRIED INTRODUCE MATERIAL OF THIS LOVELY ‘PINK GENEVENSIS’…THE PLANTS NOW ALWAYS TURNED OUT TO PRODUCE THE ORDINARY BLUE FLOWERS IN MY GARDEN, BACK HOME – !
Unlike Hydrangea macrophylla, we’ve never seen any flower color changes based on different soil types. Is it possible that the pink forms died, but not before reseeding to a more typical blue purple form? Or, is it possible that two seedlings were dug and the less vigorous pink-flowered form was simply swamped out.