Cattleya trianae
Cattleya trianaeUSDA | Grow Zone
10-12Outdoors all year in zones 10 to 12. Anywhere colder, keep it as a houseplant. Protect it below 50°F.
- Light
- Bright, indirect
- Water
- When top 1 in is dry
- Humidity
- 50-70%
- Temperature
- 65-85°F (18-29°C)
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 12-18 in tall, 12-24 in wide
- Pets
- Non-toxic to pets and children
Cattleya trianae, known for its vibrant blooms, is a popular orchid native to Colombia. This stunning plant is cherished for its beauty and relatively moderate care requirements, making it a favorite among orchid enthusiasts.
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Ideal temperature
65-85°F is where it grows fastest. Below 50°F cold damage starts.
Spacing and harvest
- Mature size
- 12-18 in tall, 12-24 in wide
- Plant apart
- 12-24 in
- Frost
- Tender: no frost
Everything it needs
9 essentials at a glance
Watering
Cattleya trianae prefers to be watered thoroughly, allowing the top inch of the potting medium to dry out between waterings.
During the growing season (spring and summer), water every 7-10 days, while in the dormant season (fall and winter), reduce watering to every 2-3 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause shriveled pseudobulbs and wilting leaves.
Light
This orchid thrives in bright, indirect light, ideally receiving around 12-14 hours of light daily.
A location near an east or west-facing window is perfect, as direct sunlight can scorch the leaves. Cattleya trianae can tolerate some direct sun in the morning or late afternoon but prefers filtered light for optimal growth.
Soil
Cattleya trianae requires a well-draining potting mix, typically composed of bark, sphagnum moss, and perlite.
The ideal pH range is between 5.5 and 6.5. Ensure good drainage to prevent root rot, and consider using a specialized orchid mix for best results.
Humidity
This orchid prefers humidity levels between 50% and 70%.
To increase humidity, consider using a humidity tray filled with water and pebbles, or mist the plant regularly. Signs of low humidity stress include browning leaf tips and wilting flowers.
Temperature
Cattleya trianae thrives in temperatures between 65-85°F (18-29°C) during the day and 55-65°F (13-18°C) at night.
It is best suited for USDA hardiness zones 10-12. This orchid is sensitive to extreme temperatures, so avoid exposing it to temperatures below 50°F (10°C) or above 90°F (32°C).
Fertilizing
Use a balanced orchid fertilizer with an NPK ratio of 30-10-10 during the growing season, applying every 2-4 weeks.
In the fall and winter, reduce fertilization to once a month. Signs of nutrient deficiency include yellowing leaves (nitrogen deficiency) and poor flowering (phosphorus deficiency).
Pruning
Prune Cattleya trianae after flowering, removing spent flower spikes to encourage new growth.
Use sterilized pruning shears to avoid disease. Additionally, remove any dead or damaged leaves to promote air circulation and overall plant health.
Repotting
Repot Cattleya trianae every 1-2 years or when the potting medium breaks down.
Signs it needs repotting include roots growing out of the pot or poor drainage. Choose a pot that is 1-2 inches larger in diameter than the current one, and gently remove the old medium before placing it in fresh orchid mix.
Propagation
Propagation is typically done through division.
The best time to divide is in spring when the plant is actively growing. Carefully remove the plant from its pot, separate the pseudobulbs ensuring each division has at least 3-4 pseudobulbs, and repot them in fresh orchid mix. Water lightly after repotting to avoid rot.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency.
How to fix it
Adjust watering schedule and check for root rot. Fertilize with a balanced orchid fertilizer.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Repot the plant in fresh, well-draining medium and reduce watering frequency.
Wilting flowers
Why it happens
Low humidity or improper watering.
How to fix it
Increase humidity levels and ensure consistent watering practices.
Browning leaf tips
Why it happens
Low humidity or excessive direct sunlight.
How to fix it
Increase humidity and provide filtered light to prevent leaf scorch.
Poor flowering
Why it happens
Insufficient light or nutrient deficiency.
How to fix it
Ensure the plant receives adequate light and fertilize regularly during the growing season.
Care through the year
Spring
In spring, increase watering and fertilization as the plant enters its active growth phase. Monitor for new growth and adjust care accordingly.
Summer
During summer, maintain bright, indirect light and ensure consistent watering. Humidity levels should be kept high to support blooming.
Fall
In fall, gradually reduce watering as the plant prepares for dormancy. Continue fertilizing until the end of the growing season.
Winter
In winter, reduce watering to every 2-3 weeks and stop fertilizing. Keep the plant in a warm location with adequate light.
Toxicity & Safety
Cattleya trianae is non-toxic to pets and children. However, ingestion of any plant material can cause mild gastrointestinal upset, so it is best to keep it out of reach of curious pets and children.
Good to know
How often should I water my Cattleya trianae?
Water your Cattleya trianae every 7-10 days during the growing season, allowing the top inch of the potting medium to dry out between waterings.
Why are my Cattleya trianae leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check the watering schedule and consider fertilizing with a balanced orchid fertilizer.
What type of light does Cattleya trianae need?
Cattleya trianae thrives in bright, indirect light, ideally receiving 12-14 hours of light daily. An east or west-facing window is ideal.
How do I propagate Cattleya trianae?
Propagation is done through division in spring. Separate the pseudobulbs, ensuring each division has 3-4 pseudobulbs, and repot in fresh orchid mix.
What should I do if my Cattleya trianae is not flowering?
Poor flowering can result from insufficient light or nutrient deficiency. Ensure it receives adequate light and fertilize regularly during the growing season.
When should I repot my Cattleya trianae?
Repot every 1-2 years or when the potting medium breaks down. Signs include roots growing out of the pot or poor drainage.
Is Cattleya trianae safe for pets?
Yes, Cattleya trianae is non-toxic to pets and children, but ingestion of any plant material can cause mild gastrointestinal upset.
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