Tag Archives: analysis

Mittleider weekly feed comparison

How does Mittleider weekly feed compare to similar products?

Recently I got to thinking, how does the Mittleider weekly feed compare to similar products that are marketed for gardeners?  I made a note to check the garden section the next time I went to Walmart to see how they compared.  Lets talk about what I learned and why the weekly feed is superior.

For this comparison I am going to use three MiracleGro products and Oscomote.  The three MiracleGro products are Liquafeed, and their .

Mittleider weekly feed expected analysis after mixing

After we mix our weekly feed for the garden we can expect the following analysis assuming the NPK came from triple 16 fertilizer.  Those percentages below would change depending on your NPK percentages.  The following percentages come from the instruction sheet that comes with the packets of Mittleider Magic Micro-Mix nutrients:

Plant nutrient                                                              Percentage

N  – Nitrogen                                                                                        13.000
P  – Phosphate                                                                                     13.000
K  – Potash                                                                                             13.000
Mg – MgSO4                                                                                           1.000
B  – Sodium Borate                                                                              0.050
Mn- Manganese Sulfate                                                                  0.120
Zn -Zinc Sulfate or Sucrate                                                           0.300
Fe -Iron Sulfate or Sequestrene                                                 0.030
Cu – Copper Sulfate                                                                           0.030
Ca – Calcium                                                                                           0.700
S  – Sulfur                                                                                                  3.000
Cl – Chloride                                                                                           2.000
Mo – Sodium Molybdate                                                                 0.015

Osmocote expected analysis

Here are some pictures that show the analysis of the Osmocote.  The percentages are good for N,P and K but that is all that it includes.  Osmocote is missing 10 of the nutrients that are provided in the weekly feed.  If you calculate the cost of this product just to use it as a standard fertilizer its going to be very expensive.  I can buy 50 pounds of fertilizer for one one and a half containers of this product would cost.

Mittleider weekly feed compared to Osmocote
Mittleider weekly feed compared to Osmocote

How does weekly feed compare to Osmocote

Guaranteed  analysis of the Liquafeed

The expected analysis of the Liquafeed is Nitrogen 12, Phosphate 9, Potash 6, Manganese 0.05 and Zinc 0.05.  It only contains 5 of the 13 nutrients the plants need us to provide.  It contains no calcium which aides the plant in taking up those it does provide.

How does weekly feed compare to Liquafeed How does weekly feed compare to Liquafeed

The expected analysis of the MiracleGro potting mix

The potting mix is another one that contains only the NPK.  The percentages are Nitrogen 21, Phosphate 11 and Potash 16.  People use this and grow container gardens in it.

How does weekly feed compare to MiracleGro potting mix How does weekly feed compare to MiracleGro potting mix

The expected analysis of MiracleGro Shake’n Feed

In the Shake n Feed I found the closest results to the weekly feed: Nitrogen 9, Phosphate 4, Potash 12, Calcium 3.5, Magnesium 1.4, Sulfur 7, Copper 0.05, Iron 9, Manganese 0.35 and Zinc 0.1.

Of all the products I compared to the weekly feed the Shake’n Feed comes the closest to having the 13 nutrients found in the weekly feed.  Unfortunately it lacks three nutrients.

How does weekly feed compare to MiracleGro Shake'n Feed How does weekly feed compare to MiracleGro Shake'n Feed

Rock dust guaranteed analysis

The data I found for the rock dust was derived from volcanic rock.  Other forms of rock may produce a different analysis. Also, the phosphate shown in the analysis is Phosphoric Acid.  Phosphoric acid 13, Potash 11, Calcium 1.23, Magnesium 1.74, Iron 0.8465, and Sodium 1.20.

weekly feed compared to other products
weekly feed compared to other products

Side by side analysis comparison

Here is a simple spreadsheet showing the products side by side to make it easier to see how they compare.

weekly feed compared to other products
weekly feed compared to other products