John Innes Seed Sowing Compost - Westland - 28L
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This Westland John Innes Seed Sowing Compost is designed for gardeners looking for a reliable, peat-free medium to ensure successful seed germination. Its key benefit is promoting fast, healthy seed growth through optimal moisture retention and aeration. A potential caveat is its fine texture, which may require careful watering to avoid dislodging delicate seedlings. This 28L formulation is a 2023 update featuring a 100% peat-free composition, enhanced with vermiculite and sand for improved seed germination and root development, a balanced low nutrient level, and a neutral to slightly acidic pH for maximum nutrient availability.
All features
| Model Part Number | 28L |
|---|---|
| Brand | Westland |
Extended Product Information
FAQs
Is this compost suitable for all types of seeds?
Yes, this compost is specifically formulated to provide the ideal conditions for a wide variety of vegetable, herb, and flower seeds to germinate successfully.
How long does the low nutrient level support seedlings?
The low nutrient level is ideal for germination and the initial few weeks of seedling growth. For seedlings intended for longer periods in trays or modules before potting on, a very dilute liquid feed may be beneficial once the first true leaves appear.
Can I use this compost for potting on small plants?
While it contains a basic nutrient supply, it is primarily designed for seed germination. For potting on, a compost with a richer nutrient balance, like a general-purpose or John Innes No. 1, would be more appropriate.
How does the peat-free formula compare to traditional peat-based composts?
This peat-free formula is designed to match the performance of traditional composts for seed sowing, offering excellent moisture retention and aeration while being a more environmentally friendly option.
What does 'John Innes' refer to?
John Innes composts are based on a traditional, scientifically developed formula that includes loam, peat (or a peat substitute), and grit, with a specific nutrient and pH balance. This version is a peat-free adaptation.
How should I store the unused compost?
Store the compost in its original bag in a cool, dry place, ensuring the bag is well-sealed to retain moisture and prevent it from drying out or becoming contaminated.
Troubleshooting
Seeds not germinating
Ensure seeds are sown at the correct depth, the compost is kept consistently moist (not wet or dry), and the temperature is suitable for the specific seed type. Check the seed packet for germination requirements.
Seedlings look weak or leggy
This can be due to insufficient light or heat. Move seedlings to a brighter location and ensure they are kept at an appropriate temperature for their type. Ensure good air circulation to prevent fungal diseases.
Surface appears dry quickly
The fine texture can lead to rapid surface drying. Water gently from the bottom of the tray if possible, or use a fine spray to moisten the surface without dislodging seeds or seedlings.
Mold or fungus on the compost surface
This usually indicates overwatering and poor air circulation. Reduce watering, ensure good ventilation, and gently scrape away any affected surface layer if localized.
Pros and Cons
Pros
- Excellent for promoting rapid and healthy seed germination.
- Peat-free formulation supports environmental sustainability.
- Good moisture retention helps prevent seeds from drying out.
- Provides adequate aeration and drainage for healthy root development.
- Low nutrient content is safe for delicate young seedlings.
Cons
- Fine texture may require careful watering to avoid disturbing seeds.
- May require nutrient supplementation sooner for plants intended for longer growth periods in the seed tray.
- As a specialized compost, it may not be suitable for larger plants or general potting needs.
Setup, Compatibility & Care
Setup: This compost is ready to use straight from the bag. Simply fill your seed trays, pots, or modules, lightly firming the compost without compacting it. Sow seeds at the recommended depth and water gently.
Compatibility: This seed sowing compost is compatible with all types of seed trays, pots, and propagation equipment. It is suitable for sowing a wide range of seeds, including vegetables, herbs, and flowers. It is not recommended for potting on established plants or for general garden use, as its nutrient profile is specifically balanced for germination and early seedling growth.
Care: Store the compost in a cool, dry place away from direct sunlight and frost. Keep the bag sealed when not in use to maintain moisture levels and prevent contamination. Water gently after sowing and keep the compost consistently moist but not waterlogged. As seedlings develop their first true leaves, monitor for signs of nutrient deficiency and consider a very dilute liquid feed if necessary.