Natural fertilisers for tomatoes and chillies help you grow strong plants without harsh chemicals. Using organic feeds improves soil health, protects beneficial insects and produces better-tasting fruit.

Why use natural fertilisers?

  • Improves soil structure
  • Feeds beneficial microbes
  • Reduces chemical build-up
  • Safe for pollinators

Best organic fertilisers to use

Worm castings

Rich in microbes and gentle nutrients. Ideal for:

  • Seedlings
  • Potted plants
  • Monthly top dressing

Compost tea

Liquid feed made from garden compost. Helps:

  • Boost leaf colour
  • Support root growth

Banana peel water

High in potassium – great for flowering and fruiting.

Eggshell calcium

Crushed shells prevent blossom end rot in tomatoes.

Feeding schedule

  • Seedlings: worm compost only
  • Flowering stage: banana feed weekly
  • Fruiting stage: compost tea every 10 days

What to avoid

  • Fresh manure
  • Overfeeding nitrogen
  • Undiluted liquid feeds

Helpful external resources

Related guides

Final thoughts

Natural fertilisers for tomatoes and chillies keep your soil alive. Feed the soil, not just the plant, and the results will speak for themselves.