Healthy Plants, Guaranteed – If your plant doesn’t thrive, we’ll replace it.
Healthy Plants, Guaranteed
If your plant doesn’t thrive, we’ll replace it.
Packed for Plant Health
Carefully prepared to arrive healthy and ready to plant.
Australia-Wide Delivery
Delivered directly from our nursery network.
Real Nursery Stock
Grown by professional Australian nurseries.
Richgro 1L Black Marvel Rose & Flower Food Liquid Fertiliser Concentrate - 1L is backordered and will ship as soon as it is back in stock.
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| Discount Level | Cart Total |
|---|---|
| $10 OFF | $200 - $999 |
| $50 OFF | $1000 - $2999 |
| $100 OFF | $3000 or more |
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No. We operate as an online-only nursery and do not offer customer pickups.
Can I delay delivery?
Yes. Add your preferred delivery timing in the order notes at checkout.
What if I’m not home for delivery?
Your order will be left in a safe location at the delivery address.
What if my plants don’t arrive healthy?
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Covered by our 30-Day Satisfaction Guarantee for complete peace of mind.
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Richgro 1L Black Marvel Rose & Flower Food Liquid Fertiliser Concentrate is a fast-acting liquid feed designed to deliver rapid results for roses and flowering plants. Absorbed through both leaves and roots, it promotes healthier growth, vibrant foliage, and abundant blooms.
✔ Balanced High Nitrogen Feed - Supports strong, healthy plant growth.
✔ Potassium Boost for Flowers - Encourages bigger, brighter, and more plentiful blooms.
✔ Fast-Acting Iron - Rapidly absorbed iron promotes deep green, healthy leaves.
✔ Highly Concentrated Formula - One litre makes up to 450 litres of fertiliser.
✔ Quick Results - Absorbed through leaves and roots for fast plant response.
✅ Roses - Designed to maximise flowering and plant health.
✅ Flowering Shrubs - Enhances colour, vigour, and bloom performance.
✅ Garden Beds - Suitable for in-ground flowering plants.
✅ Pots & Containers - Ideal for container-grown roses and flowers.
Product Type: Liquid rose and flower fertiliser
Volume: 1 litre
Dilution Capacity: Makes up to 450 litres
Key Nutrients: Nitrogen, potassium, iron, trace elements
Application: Soil and foliar feeding
General Feeding: Dilute according to label directions and apply to soil or foliage.
Roses & Flowers: Apply regularly during active growth and flowering.
Foliar Feeding: Spray onto leaves for rapid nutrient uptake.
Frequency: Use as required throughout the growing season.
Is this suitable for all flowering plants?
Yes, it is ideal for roses and a wide range of flowering plants.
How quickly does this fertiliser work?
It is fast acting and absorbed through both leaves and roots.
Will this improve leaf colour?
Yes, the added iron promotes rich green foliage.
How much fertiliser does one bottle make?
One 1L bottle makes up to 450 litres when diluted.
Can this be used in pots?
Yes, it is suitable for both garden beds and container plants.
Supplied in a 1L bottle and packed securely for safe transport and storage.
Boost flowering, foliage colour, and plant health with Richgro Black Marvel Rose & Flower Food Liquid Fertiliser Concentrate.
Select size