Noni
Morinda Citrifolia
Morinda citrifolia, commonly known as Noni, is a tropical fruit-bearing tree native to Southeast Asia and Australasia. Valued for its health benefits and unique flavor, Noni is grown for both its fruit and ornamental appeal, making it a popular choice among gardeners.
Everything it needs
9 essentials at a glance
Watering
Morinda citrifolia prefers consistently moist soil but is tolerant of short dry spells.
Water deeply once a week during the growing season, allowing the top inch of soil to dry out between waterings. In winter, reduce watering to every 10-14 days. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause leaf drop and wilting.
Light
Noni thrives in full sun but can tolerate partial shade, especially in hotter climates.
Ideally, it should receive at least 6-8 hours of direct sunlight daily. Too much shade can lead to leggy growth and reduced fruit production.
Soil
This plant prefers well-draining soil with a pH range of 6.0 to 7.5.
A mix of loamy soil with sand and organic matter is ideal. Ensure good drainage to prevent root rot, and consider using a potting mix designed for tropical plants.
Humidity
Morinda citrifolia enjoys high humidity levels of 60% or more.
To increase humidity, mist the leaves regularly or place a humidifier nearby. Signs of low humidity include browning leaf tips and leaf drop.
Temperature
Ideal temperatures range from 70°F to 90°F (21°C to 32°C).
Noni is hardy in USDA zones 10-12 and can tolerate brief drops to 50°F (10°C). Protect from frost and extreme heat, especially during summer months.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or 14-14-14.
Fertilize every 4-6 weeks during the growing season and reduce frequency in winter. Signs of nutrient deficiency include yellowing leaves (nitrogen), poor fruiting (phosphorus), and stunted growth (potassium).
Pruning
Prune Morinda citrifolia in late winter or early spring to shape the plant and remove any dead or damaged branches.
Use sharp, clean pruning shears and cut just above a leaf node. Regular deadheading of spent flowers can encourage more blooms.
Repotting
Repot every 2-3 years or when the plant becomes root-bound.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes and stunted growth. To repot, gently remove the plant from its pot, loosen the roots, and place it in fresh soil.
Propagation
Noni can be propagated through seeds or stem cuttings.
For seeds, soak them in water for 24 hours before planting in a seed-starting mix. For stem cuttings, take 6-8 inch cuttings from healthy plants, remove lower leaves, and plant in a well-draining mix. Best timing for propagation is in spring or early summer.
When it's unhappy
Yellow leaves
Why it happens
Usually caused by over-watering or nutrient deficiency.
How to fix it
Check soil moisture and reduce watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Leaf drop
Why it happens
Can occur due to sudden temperature changes or low humidity.
How to fix it
Maintain consistent temperatures and increase humidity levels around the plant.
Root rot
Why it happens
Caused by over-watering and poorly draining soil.
How to fix it
Ensure proper drainage and allow the soil to dry out between waterings. If root rot occurs, remove affected roots and repot in fresh soil.
Pest infestations (e.g., aphids, spider mites)
Why it happens
Pests can thrive in dry conditions or when the plant is stressed.
How to fix it
Regularly inspect the plant and treat infestations with insecticidal soap or neem oil.
Poor fruit production
Why it happens
Can be due to insufficient light or nutrient imbalance.
How to fix it
Ensure the plant receives adequate sunlight and fertilize regularly during the growing season.
Care through the year
Spring
In spring, increase watering as the plant begins to actively grow. Fertilize every 4-6 weeks to support new growth and flowering.
Summer
During summer, ensure the plant receives full sun and maintain consistent moisture. Monitor for pests and increase humidity if necessary.
Fall
In fall, gradually reduce watering as the plant's growth slows down. Continue to fertilize until late fall, then stop for the winter.
Winter
In winter, reduce watering to every 10-14 days and keep the plant in a warm location. Avoid fertilizing during this dormant period.
Toxicity & Safety
Noni is generally considered safe for pets and children; however, excessive consumption can lead to gastrointestinal upset. The seeds are particularly hard and may pose a choking hazard for young children.
Good to know
How often should I water my Noni plant?
Water your Noni plant once a week during the growing season, allowing the top inch of soil to dry out. In winter, reduce watering to every 10-14 days.
What type of soil is best for Morinda citrifolia?
Morinda citrifolia prefers well-draining soil with a pH of 6.0 to 7.5. A mix of loamy soil, sand, and organic matter works well.
Why are my Noni leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check the soil moisture and consider fertilizing with a balanced fertilizer.
Can I grow Noni indoors?
Yes, Noni can be grown indoors if provided with sufficient light. A south-facing window or grow lights can help meet its light requirements.
How do I propagate Morinda citrifolia?
You can propagate Noni through seeds or stem cuttings. For seeds, soak them for 24 hours before planting. For cuttings, take 6-8 inch sections and plant them in a well-draining mix.
What pests are common on Noni plants?
Common pests include aphids and spider mites. Regularly inspect your plant and treat infestations with insecticidal soap or neem oil.
What is the ideal temperature for Noni plants?
Noni thrives in temperatures between 70°F and 90°F (21°C to 32°C) and should be protected from frost.
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