I was looking at some fertilisers on ebay and came across this, so I was wondering can I use it successfully for my plants to promote there colour, for example I was thinking if I used it perhaps it would give my berry bomb which is in early flower a more pronounced blue appearance, what u guys reckon
VITAXHYDRANGEA COLOURANTCHANGES PINK HYDRANGEAS TO BLUEEASY TO USE INSTRUCTIONS INCLUDED250 GRM TUBA PLANT FOOD TO PROMOTE HEALTHY FLOWERS, GIVES FLOWERS MORE INTENSE BRIGHTER COLOURS SUITABLE FOR ALL HYDRANGEAS