- Feb 2, 2014
- Reaction score
- Tarpley Tx
- Hardiness Zone
Here in the US if one wants to advertise a product as organic it has to meet a LOT of requirements and once these requirements are met one is authorized to use the OMRI label on the product. Meeting all of these requirements is very expensive to say the least. There are many products here that are mostly organic. One product like this is Medina Liquid Plant Food. It is totally organic except it has manufactured urea instead of natural. That Tomorite product reminded me of this. Here in the US a product that has such low NPK numbers (4-3-8) as the Tomorite is one of these products that is almost all natural or organic. All chemical fertilizers here have high NPK numbers simply because of the Cation Exchange Capacity of the product. This means that there must be much more NPK in the product than the plant can ever possibly uptake because the product cannot adhere to the soil and it quickly leaches away. As I said, I have never seen this product and only went by what is available here and thought the Tomorite might be similar.Tomorite likes to kid on it's organic with its "added seaweed," but it isn't, it's petro-gro; if it was organic, Levington would have it all over the bottle.
It was introduced in the sixties, when more Brits grew tomatoes in gro-bags, which people put on their gardens after the tomatoes had finished, giving the compost 6 months to recover.
It's not in the same class as Miracle-Gro, but it's far from organic, as is growmore.
The Osmocote Pro, I've never seen before, but the NPK numbers shout armaments.
Just had a quick look at the makers, ICL, and it's as bad as Miracle-Gro.
Blood, fish & bone is organic, fish meal, fish bone, & afaik fish blood, is my favoured bought fertiliser (I now mostly grow and forage my fertiliser, comfrey & seaweed)
The fish bonemeal supplies a little nitrogen and a good, but not harmful, dose of long-lasting phosphate; the fish blood supplies good levels of nitrogen, & the fishmeal supplies a decent level of potash.
It's only drawback is that it can attract predatory animals, who smell it & burrow to look for dead animals.