Mature Plant Compost with John Innes No.3 Added 35L bag - By Jamieson Brothers

John Innes No. 3 is a nutrient-dense compost, perfect for mature plants, shrubs, trees, and climbers, including fruit trees, bushes, vines, and vigorous plants like tomatoes and chrysanthemums.

Formulated with loam, water sand, and high levels of essential fertilisers (NPK), along with being aerated to provide minimal resistance to roots while promoting vast root development, healthy growth, and ensuring excellent drainage. It delivers the nutrients required for strong growth and vibrant health. This compost ensures excellent drainage while retaining moisture, preventing root rot, and is ideal for long-term potting of established plants that need sustained feeding and strong root support. As the richest blend in the John Innes range, No. 3 provides triple the nutrients of John Innes No. 1, making it ideal for mature plants that will remain in their pots for extended periods.

We offer suitable blends of specific compost which contain John Innes no.3 such as Fruit, Tree and Shrub Compost

John Innes compost is a well-known and trusted range of compost blends developed in the UK. It was created in the 1930s by the John Innes Horticultural Institute and is known for its balanced, nutrient-rich formulas that support healthy plant growth. The compost is named after John Innes, a philanthropist who funded the institute.

There are different types of John Innes compost, each designed for different stages of plant growth:

• John Innes No. 1
  Our Seed Planting Compost and Bulb Planting Compost
  Designed for young plants, this mix has a slightly higher nutrient content to support initial growth after seeds have germinated.
• John Innes No. 2
  A balanced compost suitable for repotting established plants into larger pots, with a nutrient level ideal for sustained growth.
• John Innes No. 3:
  This compost is formulated for mature plants and trees that require more nutrients for continued development.

John Innes compost is highly regarded for its good structure, water retention, and balanced nutrients, making it a reliable choice for both amateur and professional gardeners.