It really easy to mix your own as well GF,

7 parts loam
3 parts peat ( or substitute)
2 parts sharp sand

Then you mix in 2ozs of JI Base fertiliser to the bushel for JI1, 4 for JI2. 6 for JI3. So what you can do is mix all the peat& loam etc & keep it in a bin & just mix in the fertiliser whaen you need it.

JI seed is slightly different in proportion & the size of the "lumps" in it & they use a differnet formulae for the base fertiliser.

It's a lot more forgiving as GF says when it come to watering etc. & it hold the nutrients better, downside is the weight, especially in tubs thay you want to move & hanging baskets.

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ntg

Never be afraid to try something new.
Remember that a lone amateur built the Ark.
A large group of professionals built the Titanic

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