My seedlings came up really well but then all collapsed and died, what’s the problem?

It sounds like your seedlings have been affected by a fungal problem called damping off disease. It’s a common problem with young seedlings, especially early in the season and is often associated with poor growing conditions. It is essential to use clean pots and trays for each new batch of seedlings and to buy fresh, top quality seed compost to get the very best from your seeds.

Dirty pots and old compost can introduce disease problems to your plants. Choose Westland John Innes Seed Compost. This is a well-drained compost that provides exactly the right growing conditions for your seeds In future try sowing fewer seeds to the pot and spread them out so that there is good airflow between the developing seedlings.

Improve the ventilation in your greenhouse and keep the compost moist but not wet. Avoid it drying out as this can also cause seedling collapse. More.

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