Why is My Frangipani Not Flowering?

If your frangipani isn’t flowering, the most common causes are too much nitrogen, not enough sunlight, or the tree being too young. Frangipanis need a balance of nutrients, especially phosphorus and potassium, to produce flower buds. Feeding with Complete Grow’s All Purpose NPK 20-20-20 ensures they have the right nutrition for strong flowering each summer.

1. Common Reasons for Poor Flowering

Several factors can stop a frangipani from producing blooms. The main issues include:

Excess Nitrogen: Fertilisers designed for lawns or foliage growth are high in nitrogen. This makes frangipanis leafy but delays or prevents flowering.
Lack of Phosphorus & Potassium: These two nutrients are critical for bud initiation and flower development. Without them, flowers are sparse or absent.
Insufficient Sunlight: Frangipanis need at least 6 hours of direct sun per day. Shaded trees rarely bloom well.
Immaturity: Cuttings and young trees often take 2–3 years before flowering begins.
Stress Factors: Overwatering, poor drainage, or fungal issues like rust can drain energy away from flowering.

The good news is that with the right feeding routine and sunlight, most frangipanis will return to flowering reliably.

535298141_18317793475208369_5504279859760646430_n

483713794_18485634751038683_5414795859690286890_n (1)

2. How to Get a Frangipani to Flower

Once you’ve identified why your frangipani isn’t flowering, you can take simple steps to correct the problem:

Switch to a balanced fertiliser: Replace lawn or foliage feeds with a balanced formula like Complete Grow’s NPK 20-20-20. It delivers the right mix of nitrogen, phosphorus, and potassium for growth and blooms.
Time your feeding: Begin fertilising in spring when new leaves appear. Continue every 4–6 weeks until early autumn. This keeps nutrients flowing through the peak flowering period.
Maximise sunlight: If possible, reposition potted frangipanis or trim surrounding trees to provide at least half a day of direct sun.
Check plant age: Be patient with young cuttings, as flowering won’t occur until the plant matures.
Manage stress: Ensure the soil drains well and avoid overwatering. Treat rust early and support the tree’s recovery with regular feeding.

Consistency is key. Frangipanis bloom on healthy, mature shoots — by building energy reserves throughout the season, you set the stage for abundant flowers.

482375510_18372657589186910_5288919334913359631_n (1)

484142915_18489997105007901_1538310074352821063_n (1)

3. FAQs About Frangipani Flowering

Q: What fertiliser makes frangipanis flower? A balanced NPK fertiliser such as Complete Grow’s 20-20-20, which contains phosphorus and potassium for bud formation and vibrant blooms.
Q: Can too much fertiliser stop flowers? Yes. Over-fertilising, especially with high-nitrogen products, produces leaves at the expense of flowers.
Q: My frangipani is in full sun but not flowering — why? If sunlight isn’t the issue, the problem is likely nutrient imbalance. Feeding with Complete Grow’s NPK 20-20-20 helps restore balance.
Q: How long does it take a frangipani to start flowering? From a cutting, most frangipanis take 2–3 years before flowering begins.
Q: Can pruning affect flowering? Yes. Over-pruning reduces flowering wood. Light shaping is fine, but avoid cutting too heavily before summer.

Final Recommendation: If your frangipani isn’t flowering, the most effective solution is balanced nutrition and full sun. Complete Grow’s All Purpose NPK 20-20-20 provides exactly what the tree needs for reliable, abundant blooms each summer.