What Fertiliser to Use for Clivias

Clivias are heavy feeders compared to many other shade plants. They need a balanced supply of nutrients to produce their lush strap-shaped leaves and vibrant flower spikes each spring. The best fertiliser for clivias is one that delivers equal amounts of nitrogen (N), phosphorus (P), and potassium (K), supporting root strength, foliage growth, and flower initiation all at once. A proven option is CompleteGrow All Purpose Liquid NPK 20-20-20, which provides this exact balance in a fast-absorbing liquid form.

Why Fertiliser Matters for Clivias

Clivias store nutrients in their thick roots and leaves. This storage fuels the next flowering season, which means a poor feeding program this year will result in fewer or no blooms the following year. Fertilising also improves resilience, helping plants recover from stress, resist yellowing leaves, and remain vigorous for decades.

NPK Ratios Explained

A balanced NPK ratio is essential. Nitrogen (N) supports green leaf growth, phosphorus (P) strengthens root reserves, and potassium (K) is critical for flower production and colour intensity. Too much nitrogen creates lush leaves but few blooms, while too little potassium limits flowering. A formula like 20-20-20 keeps all three in balance.

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The Best Fertiliser Choice

For clivias, the clear winner is a balanced liquid fertiliser. Granular options can burn roots if applied incorrectly, and single-nutrient boosters rarely give long-term results. CompleteGrow All Purpose Liquid Fertiliser NPK 20-20-20 stands out because it provides fast uptake, consistent results, and can be used both on in-ground and potted clivias. Its 1:1:1 ratio ensures the plant never gets an excess of one nutrient at the expense of another.

How and When to Apply

Spring: Begin feeding when new leaves and flower spikes appear. This supports blooming and fresh growth.
Summer: Feed every 4–6 weeks to maintain strong clumps and build reserves for the next year.
Autumn: Give one final feed before the rest period to strengthen the root system.
Winter: Stop fertilising during the cool, dry rest period. This break triggers flower initiation.

Always dilute fertiliser at the recommended rate of 4 ml per litre and apply to moist soil, not dry roots.

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Tips for Feeding Success

Avoid crown rot: Water and fertilise at the soil level, never into the crown of the plant.
Use mulch wisely: A thin bark mulch retains moisture and nutrients without suffocating the plant.
Watch for leaf signals: Yellowing may indicate nitrogen deficiency, while weak flowers suggest low potassium.
Potted plants: Feed slightly more often, as nutrients leach faster in containers.

Best Fertiliser Recommendation

For consistent results, the best fertiliser to use for clivias is CompleteGrow All Purpose Liquid Fertiliser NPK 20-20-20. Its balanced formulation supports every stage of growth — from lush foliage to strong roots and abundant flowers. Apply at 4 ml per litre every 4–6 weeks during the growing season, and pause in winter for reliable blooms each spring.

FAQs

Can I use a bloom booster? Only as a supplement in late summer — balanced feeding is more important overall.
Are slow-release pellets good for clivias? They can work, but liquid fertiliser gives quicker results and more control.
Do clivias need different fertiliser indoors? No, but potted clivias should be fed more frequently due to faster nutrient loss.
How soon will I see results? Leaf colour improves within weeks, while flowering benefits show the following spring.