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    Up to 70% off

    Boxing Day Sale On Now!

    Hydroponic Nutrients - Herbs and Leafy Greens

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    31 items left

    Our liquid NPK nutrients for herbs and leafy greens is the ideal solution for the home grower's hydroponic system. All of our nutrients are NPK Fertiliser (nitrogen, phosphate, potassium among other nutrients) solutions which results in fast growth and good value.

    • Contains the essential minerals required for plants to grow.
    • pH buffered to ensure all minerals are available to the plant.
    • Easy to use
    • Makes 200L of solution per litre of nutrient.

    Why do our larger packs come in Part A and Part B sachets?

    When calcium comes into contact with some micronutrients at high concentration - they mix together and form a powder which does not dissolve (and is therefore unused by your plants!). To get around this, you can first dilute the part A nutrients with water, before then adding the part B nutrients to the diluted part A solution. This ensures maximum nutrient availability to your plants.

    The single part nutrient has been stabilised to prevent this, but is therefore more expensive.

    WARNING: Do not consume.

    Size variants

    Size What you get
    Great for Litres made
    200mL Comes as a single 200mL bottle with single part liquid nutrients. Beginner gardeners who want a quick and easy nutrient formula. Makes 40L of nutrient solution.
    1L (2x500mL) Comes as 2x500mL sachets of liquid nutrients.  Gardeners with larger hydroponic gardens such as the sun shelf or heirloom garden who are looking for better value nutrients. Makes 200L of nutrient solution.
     5L (2x2500mL) Comes as 2x2.5L pouches packed with powdered nutrients. Simply add 2.5L of water to each pouch, shake thoroughly, and then add to your hydroponic basin at the dilution suggested on the pouch. Note that this is the same formula as the 1L nutrients - just in powdered form. Gardeners with BIG hydroponic systems or many different products who are looking for the best value and have space to store their nutrients. Makes 1000L of nutrient solution.

    Instructions

    All three size options come with instructions written on the packaging. For best results we suggest using a nutrient meter to accurately test the amount of nutrients contained in your water, and make sure your plant gets the best growth.

    Micronutrients and trace elements may build up in the solution over time as some elements are used more than others. It is recommended that you empty and replace your entire solution every 3 months to avoid this build up.

    FAQ - Gathera

    ❓ Frequently Asked Questions

    Find answers to common questions about ordering with Gathera

    📦 Shipping & Delivery

    Where is my product shipped from?
    Orders for Australia, New Zealand, USA, Canada, and India are shipped from our warehouse in Sydney, Australia. UK and EU customers should shop directly from our dedicated store at www.gathera.co.uk, where orders ship from our UK warehouse in Bristol.
    How long is postage and what is the cost?
    Australia: Shipping is typically 2-6 business days. Orders over $140 AUD qualify for free domestic postage (may change during sale periods). Sydney Metro, Canberra, and Melbourne Metro areas often receive orders within 2–3 business days.

    International (Standard): New Zealand is 9–15 business days, and the USA is 10–20 business days. Shipping costs are calculated at checkout. For full details, see our Postage and Delivery page.
    What countries do you ship to?
    We ship to Australia, New Zealand, the USA, Canada, and India. Customers in the UK/EU must use our separate store at www.gathera.co.uk.
    How can I track my order?
    Once your order has shipped, you will receive an email containing your tracking number and a link to the carrier's website. Please allow 24 hours for the tracking information to update.

    🔄 Returns & Policy

    What is your returns policy?
    We offer a 30-day change of mind return policy. To be eligible, your item must be unused, in the same condition you received it, and in the original packaging. Returns must be requested within 30 days of receiving your item. You can read the full policy details on our dedicated page: See the full Refund Policy here.
    What if my product arrives damaged or defective?
    If your product arrives damaged or defective, please contact our customer support team immediately with your order number and photos of the issue. We will arrange a replacement or refund quickly.

    💡 Product Use & Care (Grow Lights)

    How do I use grow lights effectively?
    Distance & Time: For most houseplants, place the light 30-60cm (12-24 inches) away and run for a 12–16 hour photoperiod. Seedlings and herbs may require the light closer (15-30cm). Using a timer is highly recommended for consistency.

    For detailed advice on color temperature and light cycles, check out our full guide: Growing with Grow Lights.

    💵 Payments

    What payment methods do you accept?
    We accept all major credit cards (Visa, Mastercard, Amex), PayPal, and accelerated payment methods like Shop Pay, Google Pay, and Apple Pay. We also offer 'Buy Now, Pay Later' options like Afterpay.