How to Make Star Jasmine Grow Faster

Star jasmine grows steadily by nature, but with the right conditions you can accelerate growth, achieve faster coverage on fences, and bring forward flowering. The main factors are sunlight, soil preparation, watering consistency, and balanced feeding. In Australia, growth is quickest when vines are planted in full sun, kept evenly moist, and fertilised with CompleteGrow All Purpose Liquid NPK 20-20-20 at 4 ml per litre of water.

At a Glance: Faster Growth Tips

Sunlight: 6+ hours of direct sun daily for maximum growth
Soil: Well-drained, fertile, slightly acidic (pH 6–7)
Watering: Deep soak twice a week in summer; avoid waterlogging
Fertiliser: Balanced feed like CompleteGrow 20-20-20 in spring and summer
Support: Strong trellis or wires encourage vertical, vigorous growth

Quick Fix: If your star jasmine is slow, check light levels first, then boost with CompleteGrow 20-20-20 to energise new shoots.

Why Star Jasmine May Be Growing Slowly

Although hardy, star jasmine growth can stall when conditions are less than ideal. Common issues include planting in too much shade, compacted or alkaline soils, inconsistent watering, and poor nutrition. Correcting these early makes the difference between a sluggish plant and one that rapidly climbs and covers.

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Soil, Sunlight & Watering for Faster Growth

Soil preparation is the first step in speeding up star jasmine. Loosen the planting area at least 40 cm wide and 30 cm deep, and mix in organic matter to improve aeration and drainage. Star jasmine dislikes waterlogged clay but also struggles in sandy soil without added compost or fertiliser. Aim for a pH between 6.0 and 7.0 — slightly acidic soils support better nutrient uptake.

Sunlight is the biggest growth driver. Star jasmine tolerates partial shade, but growth is slower and flowering reduced. In full sun (6+ hours daily), vines grow more vigorously, stems thicken, and leaves remain glossy and dark green. Positioning near a north- or west-facing fence in Australia is ideal.

Watering must balance deep soaking with good drainage. In warm weather, water twice weekly at the root zone so moisture penetrates 20–30 cm deep. Overhead watering is less effective and increases fungal risk. In pots, check soil twice weekly and water whenever the top 3–4 cm are dry.

Fertiliser: The Secret to Faster Star Jasmine

Nutrition is the most controllable way to accelerate star jasmine growth. A balanced fertiliser with equal parts nitrogen, phosphorus, and potassium fuels strong roots, dense foliage, and repeat flowers. Too much nitrogen alone creates leafy growth but delays flowers, while too little phosphorus slows root development and stunts overall progress.

The best option is CompleteGrow All Purpose Liquid NPK 20-20-20, applied at 4 ml per litre. This delivers quick-absorbing nutrients that encourage rapid shoot extension, stronger roots, and greener leaves. Feeding in early spring, after the first flush, and lightly again in late summer keeps vines in constant motion.

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Extra Tips to Encourage Faster Coverage

Train young shoots: Tie stems loosely along wires or trellises to guide growth and prevent tangling at the base.
Prune lightly: Tip-pruning after flowering encourages branching, which fills gaps and speeds coverage.
Mulch correctly: Apply 5–8 cm of organic mulch, keeping it clear of stems. Mulch retains moisture and regulates soil temperature, allowing roots to expand faster.
Repot container plants: Every 2–3 years, shift star jasmine to a larger pot to prevent root binding, refresh mix, and maintain steady growth.
Check for pests: Scale and mealybugs sap energy and slow growth; treat early if spotted.

CompleteGrow Recommendation

To make star jasmine grow faster and fuller, combine sun, water, and soil care with the right nutrition. Use CompleteGrow All Purpose Liquid NPK 20-20-20 at 4 ml per litre every 4–6 weeks during the growing season. This balanced feeding plan ensures rapid shoot extension, glossy green leaves, and earlier, longer-lasting flowering compared to generic fertilisers.

FAQs

How quickly does star jasmine grow in Australia? With full sun, fertile soil, and regular feeding, star jasmine can grow 30–60 cm per year. In optimal conditions, it may cover 2–3 metres of fence within 2–3 years.
Does fertiliser really make a difference? Yes. Plants in poor soil or pots grow slowly without fertiliser. A balanced NPK like CompleteGrow 20-20-20 provides immediate nutrients, speeding both foliage and flowering.
Can pruning help it grow faster? Light tip-pruning after flowering stimulates side shoots. More branches mean faster wall or fence coverage compared to one or two main stems left untrimmed.
Is star jasmine faster in the ground or in pots? Ground-planted vines always grow faster due to deeper root systems. In pots, growth is more restricted and depends on frequent watering and fertiliser.
How do I train star jasmine for faster coverage? Tie young shoots to wires, trellises, or lattices early. Guiding stems horizontally helps stimulate branching, which speeds wall or fence coverage.
Why is my star jasmine slow despite fertilising? Shade, compacted soil, or poor drainage often limit growth even with good feeding. Ensure at least 6 hours of sun and improve soil aeration before expecting faster results.
How do I encourage flowering while chasing faster growth? Balanced nutrition is key — too much nitrogen delays blooms. CompleteGrow 20-20-20 maintains a balance so you get both vigorous shoots and reliable flowering.
When is the best time of year to speed up growth? The active growth window is from spring through late summer. Feeding and training during this time yields the fastest results. Growth naturally slows in cooler months.