John Innes Potting Compost

 

 


JI #1 Base

7 parts sterilized loam
3 parts peat
2 parts sand or grit
Fertilizer: 4 oz / 8 gallons (3 grams / liter)
Lime or chalk: 3/4 oz / 8 gallons ( 0.5 grams
/ liter)

JI #2 Base: Same as 1 but double the Fertilizer
and chalk
JI #3 Base: Same as 1 but triple the Fertilizer
and chalk

JI Seed compost: The fresher
the sterilization, the better the germination

2 parts sterilized loam
1 part moss peat
1 part sharp sand

The loam and peat is put through
in 3/8 in (9mm) sieve.

To each bushel or 8gal(36 L) is added:

1-2 oz (42gm) superphosphate
1/2 oz Potassium nitrate
4-6 oz (21gm) ground limestone

Ericaceous Mix: Use the base
but leave out the Lime

Soilless: 3 parts peat and
1 part sand

Potting Compost: (same as above)

7 parts sterilized loam
3 parts moss peat
2 parts sharp sand

The loam and peat is put through
a 3/8 in (9mm) sieve.
To each bushel (8gal/36l) is added

3/4oz (21gm) ground limestone
4oz (110gm) 14-14-14 Osmocote

This makes John Innes Potting Compost
No. 1.
For a richer mix simply double the quantity of

John Innes Base to make No. 2 or treble it to

make No.3

Listing of potting soils and
what they are used for.

Articles

   Grow
Delphiniums from Seed

   Container
Gardening

Recipes

   Garden
Loam Potting Soil

   John Innes
Potting Compost

   Orchid
Potting Mix

   Cacti
Pottingl Mix

   Seed Starting
Potting mix

   Alpines
Potting Mix

   Shade
Potting Mix

   Cutting
Potting mix

   A. Knutson
Potting mixes

   CORNELL
MIXES

   Cornell
Peat-lite Mix

   Cornell
Foliage Plant Mix

   Cornell
Epiphytic Mix

   Standard
Potting Mix

 


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