Best Fertilisers for Tomatoes, Herbs, and Leafy Greens

Feed Smart. Grow Better. Choose the Right Fertiliser for Each Crop.

When it comes to growing strong, healthy produce, one-size-fits-all fertilisers just donโ€™t cut it. Tomatoes, herbs, and leafy greens each have different nutritional needsโ€”and feeding them correctly can mean the difference between average and amazing harvests.

At CompleteGrow, we offer a range of clean, concentrated fertilisers tailored to how plants grow at different stages. Hereโ€™s how to match the right product to your plants for the best results.

Tomatoes: Heavy Feeders That Need Phosphorus & Potassium

Recommended Fertiliser:
โœ… CompleteGrow NPK 4-18-38 + Calcium & Magnesium

Why it works:

  • High phosphorus and potassium to fuel flowering and fruiting
  • Includes calcium nitrate to reduce blossom-end rot and support firm fruit structure
  • Magnesium sulphate enhances nutrient transport and leaf colour
  • Works in both hydroponics and soil-based growing

Tip: Use during flowering and fruiting stages for best results. Start with a general-purpose fertiliser, then switch to this formula as tomato plants begin to bloom.

Herbs: Donโ€™t Overfeedโ€”Focus on Fragrance & Foliage

Recommended Fertiliser:
โœ… CompleteGrow Liquid NPK or All-Purpose 20-20-20 at Half Strength

Why it works:

  • Maintains lush leaf growth without softening stems
  • Supports new shoots and regular cutting
  • Perfect for potted herbs or raised bed planting

Tip: Feed every 2โ€“3 weeks, especially if growing in containers where nutrients wash out fast.

Leafy Greens: Fast Growers That Need Steady Nitrogen

Recommended Fertiliser:
โœ… CompleteGrow Liquid NPK 20-20-20 or Custom NPK (High Nitrogen)

Why it works:

  • Fuels rapid leafy growth and vibrant green colour
  • Easy to absorb through soil or foliar application
  • Works well in both soil and hydroponic setups

Tip: Use weekly during peak growing season for best results, especially in warm weather.

Why Use CompleteGrow Fertilisers?

  • ๐Ÿ‡ฆ๐Ÿ‡บ Made in Australia โ€“ for Australian conditions
  • ๐ŸŒฑ No fillers โ€“ just results
  • ๐Ÿ’ง Liquid and Powdered Options โ€“ perfect for soil, pots, or hydro
  • ๐Ÿงช Custom Blends Available โ€“ tailored for your specific crops

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