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Best Fertiliser for Herbs: How to Keep Basil, Mint, Parsley & More Thriving
Fresh herbs like basil, mint, coriander, parsley and thyme are easy to grow at home—but without the right fertiliser, they quickly become pale, leggy, or slow to grow back after harvesting. Whether you’re growing herbs in pots or garden beds, choosing the best plant food is key to keeping your plants leafy, flavourful, and full of nutrients.What Do Herbs Need to Thrive?
Herbs are typically fast-growing, leafy plants. They need:- Regular harvesting: Promotes bushier growth
- Consistent moisture: Most herbs prefer moist—not soggy—soil
- Sunlight: At least 5–6 hours per day, though soft-leaf herbs like coriander prefer partial shade
- Good airflow: Prevents mildew and promotes resilience


How to Grow Herbs at Home – Indoor & Outdoor Care Tips
Potting & Soil Tips
- Use free-draining potting mix: A light soil blend with composted bark or perlite ensures roots don’t rot
- Avoid clay or dense soil: Herbs dislike compacted soil that holds too much water
- Choose deep pots for taproot herbs: Coriander and parsley need space for root growth
Watering Guidelines
- Water deeply when the top 2–3 cm of soil is dry
- Don’t let pots sit in saucers of water—this encourages root rot
- Herbs in full sun may need daily watering in summer
Location
- Outdoor herbs: Plant in raised beds or garden rows with full to partial sun
- Indoor herbs: Place near a bright kitchen window with good airflow; rotate pots every few days
- Cold weather: Most herbs slow down in winter—protect tender types like basil and mint


What Is the Best Fertiliser for Herbs?
Herbs benefit from a balanced NPK fertiliser that supports **leaf growth** while keeping plants compact and full-flavoured. A liquid chemical formula allows for fast uptake, especially in containers where nutrients deplete quickly.Ideal NPK Ratio
- Moderate nitrogen (N): Encourages fresh, green leaf production
- Balanced phosphorus (P): Supports root systems and healthy regrowth after harvesting
- Potassium (K): Improves disease resistance and overall plant health
Feeding Schedule
- Start 2–3 weeks after planting: Once roots are established
- Feed every 1–2 weeks: Using a complete liquid fertiliser like a 20-20-20 or 2-7-7 depending on maturity
- Flush soil monthly: Water heavily once a month to reduce any salt build-up
Common Herb Fertilising Mistakes
- Overfeeding = bitter flavour in herbs like basil, mint and oregano
- Feeding too soon after transplanting can cause leaf burn in sensitive varieties
- Skipping feeds in pots causes herbs to stall and lose flavour intensity
By using a pH-balanced, complete fertiliser and following a consistent schedule, you’ll get bushier plants, stronger flavour, and faster regrowth after harvesting leaves or stems.
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