Why Is My Anthurium Not Flowering?

Anthuriums are prized for their colourful spathes and glossy leaves, but many growers struggle when their plant refuses to bloom. A lack of flowers often comes down to care conditions, especially nutrition. Anthuriums need consistent feeding, good light, and stable humidity to push out new blooms.

Without the right balance of nutrients, the plant focuses on producing leaves instead of flowers. Fertiliser is one of the most overlooked factors in getting regular, long-lasting blooms, making it essential for any grower to understand how to feed anthuriums correctly.

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Why Anthuriums Fail to Flower

If your anthurium has stopped flowering, the following reasons are most likely:

Insufficient Fertiliser: Lack of phosphorus and potassium limits flower initiation and bud development.
Excess Nitrogen: Too much nitrogen fertiliser produces leafy growth at the expense of flowers.
Low Light: Anthuriums need bright, indirect light to flower. Low-light rooms may prevent blooming.
Improper Watering: Overwatering or letting soil dry completely stresses the plant and reduces flowering cycles.
Age & Repotting: Young plants or those recently repotted may take time before producing flowers again.

For consistent flowering, use a balanced fertiliser such as CompleteGrow All Purpose Liquid NPK 20-20-20 every 2–3 weeks during the growing season. For established plants, alternating with CompleteGrow NPK 4-18-38 + CaMg boosts flower production while keeping foliage healthy.

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FAQs: Anthurium Flowering Problems

How long does it take anthuriums to flower?
A healthy anthurium typically flowers every few months, with each bloom lasting 6–8 weeks. Proper feeding speeds up the cycle.

Does fertiliser really make a difference?
Yes. Fertiliser ensures the plant has the phosphorus and potassium needed to set buds. Without it, flowering slows or stops.

Why does my anthurium only grow leaves?
Excess nitrogen or low light encourages leaf growth over flowers. Adjust your feeding balance and move the plant to brighter light.

What’s the best fertiliser for flowering?
A balanced fertiliser with higher phosphorus, like CompleteGrow 4-18-38 + CaMg, is best for stimulating blooms while maintaining root strength.