Mexican Mock Orange
Choisya ternata · Mexican Orange BlossomUSDA | Grow Zone
8-10Outdoors all year in zones 8 to 10. Anywhere colder, keep it as a houseplant. Protect it below 40°F.
- Light
- Full sun to partial shade
- Water
- Top inch dry between waterings
- Humidity
- Average to high humidity
- Temperature
- 60-75°F (15-24°C)
- Difficulty
- Beginner
- Growth
- Moderate
- Mature size
- 4-6 ft tall, 3-4 ft wide
Choisya ternata, commonly known as Mexican Mock Orange, is a fragrant shrub native to Mexico. Its aromatic white flowers and glossy green leaves make it a popular choice for gardens and landscapes.
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Ideal temperature
60-75°F is where it grows fastest. Below 40°F cold damage starts.
Spacing and harvest
- Mature size
- 4-6 ft tall, 3-4 ft wide
- Plant apart
- 36-48 in
- Frost
- Half hardy: light frost only
Everything it needs
9 essentials at a glance
Watering
Choisya ternata prefers well-drained soil and should be watered regularly, allowing the top inch of soil to dry out between waterings.
In the growing season (spring and summer), water every 1-2 weeks, while in the fall and winter, reduce watering to once every 2-3 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
This plant thrives in full sun to partial shade, ideally receiving 6-8 hours of direct sunlight daily.
It can tolerate some shade, but too much can lead to leggy growth and reduced flowering. A location with morning sun and afternoon shade is often ideal.
Soil
Choisya ternata prefers a well-draining soil mix with a pH range of 6.0 to 7.5.
A mixture of loamy soil with added sand or perlite for drainage is recommended. Ensure the pot has drainage holes to prevent waterlogging.
Humidity
This plant does well in average household humidity levels but benefits from higher humidity, especially in dry climates.
To increase humidity, mist the leaves regularly or place a humidity tray filled with water and pebbles beneath the pot. Signs of humidity stress include browning leaf tips and leaf drop.
Temperature
The ideal temperature range for Choisya ternata is between 60-75°F (15-24°C).
It is hardy in USDA zones 8-10 and can tolerate brief periods of frost. Protect the plant from extreme heat and cold by providing shade or cover as needed.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or similar, applying it every 4-6 weeks during the growing season.
In fall and winter, reduce or stop fertilizing. Signs of nutrient deficiency include yellowing leaves, poor growth, and reduced flowering.
Pruning
Prune Choisya ternata 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. Deadheading spent flowers can encourage more blooms throughout the season.
Repotting
Repot Choisya ternata every 2-3 years or when it becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot that is 1-2 inches larger in diameter than the current one. Carefully remove the plant from its pot, loosen any tightly bound roots, and place it in fresh potting mix.
Propagation
Propagation can be done through semi-hardwood cuttings taken in late summer or early fall.
Use a sharp, clean knife to take a 4-6 inch cutting from a healthy stem, remove the lower leaves, and dip the cut end in rooting hormone. Plant the cutting in a pot with a well-draining mix and keep it moist until roots develop, which usually takes 4-6 weeks.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency.
How to fix it
Check soil moisture and adjust watering schedule. Fertilize if nutrient deficiency is suspected.
Leaf drop
Why it happens
Under-watering or sudden temperature changes.
How to fix it
Ensure consistent watering and protect the plant from drafts and extreme temperatures.
Leggy growth
Why it happens
Insufficient light.
How to fix it
Move the plant to a brighter location to encourage bushier growth.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Ensure the pot has drainage holes, reduce watering, and consider repotting into fresh soil.
Pests (e.g., aphids, spider mites)
Why it happens
High temperatures and low humidity.
How to fix it
Inspect regularly and treat with insecticidal soap or neem oil as needed.
Care through the year
Spring
In spring, focus on pruning and fertilizing to encourage new growth and blooms. Monitor for pests as temperatures rise.
Summer
During summer, ensure consistent watering and provide some afternoon shade in extremely hot weather to prevent leaf scorch.
Fall
In fall, reduce watering as the plant enters dormancy and prepare for cooler temperatures. Continue to monitor for pests.
Winter
In winter, protect the plant from frost and cold drafts. Water sparingly, allowing the soil to dry out more than in warmer months.
Toxicity & Safety
Choisya ternata is non-toxic to pets and children. It is safe to have around cats and dogs, with no known harmful effects from ingestion.
Good to know
Why are my Choisya ternata leaves turning yellow?
Yellow leaves on Choisya ternata can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
How often should I water my Mexican Mock Orange?
Water your Choisya ternata every 1-2 weeks during the growing season, allowing the top inch of soil to dry out between waterings.
What is the best light for Choisya ternata?
This plant prefers full sun to partial shade, ideally receiving 6-8 hours of direct sunlight each day for optimal growth and flowering.
How do I propagate Choisya ternata?
You can propagate Choisya ternata through semi-hardwood cuttings taken in late summer or early fall. Use rooting hormone and keep the cuttings moist until roots develop.
When should I prune my Mexican Orange Blossom?
Prune Choisya ternata in late winter or early spring to shape the plant and remove any dead or damaged branches, promoting healthy growth.
What type of soil is best for Choisya ternata?
Choisya ternata thrives in well-draining soil with a pH range of 6.0 to 7.5. A mix of loamy soil with added sand or perlite is ideal.
Is Choisya ternata toxic to pets?
No, Choisya ternata is non-toxic to both pets and children, making it a safe choice for households with animals.
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