John Innes Ericaceous Compost
The normal John Innes Potting Composts Nos 1, 2 and 3 are NOT suitable for most lime-hating subjects such as Azaleas, Heathers and Rhododendrons etc. The recently re-launched JOHN INNES ERICACEOUS COMPOST is a specially formulated sterilised loam-based, lime-free compost with essential plant foods for such plants. It is a traditional loam-based formula with added lime-free grit ideal for all acid-loving calcifuge plants such as:-
John Innes Ericaceous Compost can be used indoors or outdoors - in pots or containers or planting out into the garden
Fill pot level, insert cuttings spaced so that leaves do not touch. Gently firm compost around cutting and water using a fine rose. To maintain humidity put a plastic bag or dome cover over the pot or place in a propagation unit. Keep in a warm well-lit place, out of direct sunlight. Water when compost looks dry or if cuttings wilt.
Potting Established Plants
Only re-pot in the growing season - between early Spring and Autumn. Water the plant and allow to drain. Partly fill the new pot, tub or planter with fresh compost, leaving enough room for the root ball. Place the plant in the middle of the pot and fill around with compost, firming gently. Leave at least 1cm (0.5 inch) below the rim of the pot to allow adequate space for watering. Water well. DO NOT ALLOW TO DRY OUT.
Plants need light for growth, but avoid excessive direct hot sunlight for sensitive plants. Allow fresh air circulation but avoid fumes, draughts and hot dry air. A moist atmosphere is beneficial. Avoid excessive heat, cold shocks or any sudden changes of temperature.
Line the hole with enough compost to completely surround the roots. Place the plant in position and fill the hole with more compost. Firm gently and water well.
John Innes Ericaceous Compost contains enough plant food for 6 to 8 weeks after potting, depending on the plant and the season. Thereafter feed every 7 to 14 days during the growing period with a liquid ericaceous fertiliser.
Close the bag after use to keep it moist and to prevent contamination. Store in a cool dry place away from weed-killers.
Benefits of John Innes Ericaceous Compost
When compared with most peat-based or peat-substitute soil-less composts for growing established lime-hating plants in containers, John Innes loam-based Ericaceous Compost is generally:-
NOTE: The following JIMA members currently produce a John Innes Ericaceous Compost:-