Marmite plant food?
I have had 2 small tree ferns for a couple of years and this summer the fronds look a bit less green than previously so I wondered about feeding them. The advice is to use half strength liquid feed so rather than using the crystals you dissolve in water, I bought some Miracle Gro all purpose concentrate which is a liquid to dilute without the fear of having residue. On opening the bottle I found it to be a thick sticky looking liquid which looks and smells exactly like runny Marmite. When diluted to make it half strength it is like weak coffee and still smells of Marmite! Has anyone used this and if so does yours smell the same please? It is a bit worrying to think that it hasn't a childproof top and is so like something you would eat. Thanks for any suggestions.