The seedling mix is used to sow seeds and to grow young plants and cuttings until they are ready to be planted out. [4]

Loam - Loam is the most important ingredient in all John Innes compost, supplying the main body of the compost. The loam supplies the nutrition needed for the base of the plant, which helps to absorb and release plant nutrients as required. The loam also contains micro-elements and organic matter, which provides a slow release of Nitrogen to the plant. Gardener, blogger and allotmenteer Bryony Willis, shows you how to grow lilies in containers for a stunning summer display. Preparing the container

What are the different types of John Innes used for?

No. 3 contains the highest nutrient levels, and is used for growing mature plants such as shrubs and trees. [1] The base soil is amended with: Plant single large bulbs (10-12cm (4-5in) diameter) into 20-23cm (8-9in) diameter containers, or plant three to four smaller bulbs (5-8cm (2-3in) diameter) into 23-25cm (9-10in) diameter containers. Allow 5cm (2in) between bulbs and use only deep containers. Planting depth

The scientists who developed the formulae were William Lawrence and John Newell. The pair started to investigate the procedure of making seed and potting composts following heavy losses of Primula sinensis seedlings in the 1933-34 season, which were an important experimental plant for JIHI geneticists. [2] Plant basal-rooting lilies (or those whose habit is unknown) at a depth equal to the height of the bulb. Plant stem-rooting lilies at a depth roughly two-and-a-half times the height of the bulb. The institution made the formulae generally available, but never manufactured the composts for sale nor benefited financially from their production. [3] Original formulae [ edit ] No. 1 contains the lowest level of nutrients, and is used for potting on young cuttings or seedlings. [1] The base soil is amended with: After 4–6 weeks, regularly apply a liquid feed, following the manufacturer’s instructions. Alternatively, at the time of potting incorporate slow-release fertilizer granules according to the manufacturer’s instructions.

A. John Innes Composts are designed to be a life partner for plants. John Innes Seed Sowing Compost has a small amount of nutrients to encourage germination. John Innes No1 has a little more nutrients, perfect for transplanting seedlings. John Innes No2 is used for potting on young plants and John Innes No3, which has the most nutrients is best used for final potting up of plants. John Innes Ericaceous is suitable for all acid loving (lime – hating) plants. Potting on Trees and shrubs in containers, tubs and troughs and most long-term mature plant containers Ideally keepcontainers in a cool but frost-free, airy place with strong light, such as a well-ventilated cold greenhouse or frame.

John Innes No.3 is a loam-based compost with a reduced peat mix and a plentiful supply of nutrients for heavy feeding plants, vegetables and fruit. The high quality peat used in the compost is from an exclusive Irish source and, combined with the loam, provides an ideal air/water balance, retains water whilst allowing adequate drainage, and is easy to rewet. Can refer to either home-made garden compost or seed/potting compost: • Garden compost is a soil improver made from decomposed plant waste, usually in a compost bin or heap. It is added to soil to improve its fertility, structure and water-holding capacity. Seed or potting composts are used for growing seedlings or plants in containers - a wide range of commercially produced peat-free composts are available, made from a mix of various ingredients, such as loam, composted bark, coir and sand, although you can mix your own. Compost is also suitable for vigorously-growing plants such as tomatoes and chrysanthemums. Raised Beds SylvaGrow John Innes No.3 can be used as part of a raised bed medium for vegetable and strawberry growing. Simply mix one part SylvaGrow John Innes No.3 thoroughly with two to three parts loam or garden soil to gain a valuable addition of organic matter, sterilized loam and nutrients. Remember to supplementary feed as instructed above in ‘Potting On’ as vegetables are heavy feeders and will respond well.

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After hundreds of trials, Lawrence and Newell arrived at their two standardised composts. These formulae were published in 1938, and they became known as "John Innes composts" in the horticultural trade. [2] Some lilies are lime-haters (e.g. L. auratum and L. speciosum), and should be potted into pure ericaceous compost. John Innes ericaceous compost is recommended. Although any good multipurpose compost is suitable, soil-based John Innes composts are easier to manage in terms of watering and feeding. John Innes No 3 is recommended for most lilies. If it appears too dense add 20 per cent by volume each of horticultural grit and peat-free multi-purpose compost or leaf mould to improve drainage. A. John Innes No 3 Mature Plant Compost is great for use with larger houseplants. For any other job choose a compost that is more specific to your requirements—for example Westland Houseplant Potting Mix. John Innes No.3 is the perfect choice for most mature plants including heavy feeding vegetables, salad plants, foliage and flowering plants, shrubs and containerised trees.

A recently developed product that is suitable for use with ericaceous or ‘lime-hating’ plants. Peat-based or peat-free media with ‘added John Innes’ This mix contains double the amount of nutrient in John Innes No 1 to suit established plants. It is suitablefor most houseplants and vegetable plants in containers. Some lilies, such as the Asiatic hybrids, root from the base of the bulb only. Others, including L. formosanum, L. lancifolium and L. longiflorum, produce roots not just from the base of the bulb but also from the stem just above the bulb – these lilies may need a deeper container. To guard against waterlogging, standcontainersin the rain shadow of a wall or keep in an unheated greenhouse or in a shed. In southern England many lilies will be fully hardy and can be left outside in largercontainer year round. It may, however, be necessary to wrap thecontainers in winter with bubble polythene in cold areas to protect against frost. In very cold areas, or where tender lilies are grown, keepcontainersin frost-free sheds until spring.There are four original formulae; one seedling mix and three potting mixes. The potting mixes have identical soil components and differ only in nutrient levels. [4] Seedling mix [ edit ]