Jamaica Air Plant
oncidium altissimum
Also known as: ["Jamaica Air Plant","Jamaican Air Plant"]
Overview
A species of orchid native to Jamaica, known for its epiphytic growth habit and attractive flowers.
Benefits & Perks
["fragrant flowers","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Liliopsida |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Genus: | Oncidium |
| Botanical Name: | Oncidium altissimum |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: indoor pot with excellent air circulation
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"18–30°C"}
- Hardiness: {"zones":"11–12"}
- Misting: every 2–3 days, especially in dry environments
- Drainage: Fast-draining to prevent root rot.
- Soil Type: Orchid bark mix with perlite or coarse sand for aeration and drainage.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed after flowering or when dead pseudobulbs are identified; typically annually or biannually.
- Pruning Intensity: Light to moderate; remove only dead or non-productive parts.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate morning or late afternoon direct sun but avoid harsh midday sun, especially in summer.
Sunlight Tolerance Tips:
Acclimate plants gradually to direct sun to prevent scorching; for indoor placement, use sheer curtains to filter intense light; outdoor plants should be in a shaded, airy location.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
bright, indirect light
Rotate plant weekly for even growth; provide dappled light in summer; avoid west-facing windows in hot climates.
Watering
every 7–10 days during active growth, reducing to every 2–3 weeks in dormancy
Water early in the day to allow foliage to dry; avoid wetting the pseudobulbs directly; ensure thorough drainage after each watering.
Soil
orchid bark mix with perlite and charcoal
pH: Slightly acidic (pH 5.5–6.5).
Ensure medium is not compacted; avoid heavy garden soils; maintain moisture without waterlogging.
Temperature
Prefers intermediate temperatures (60–75°F / 15–24°C) during active growth; can tolerate cooler nights (50–60°F / 10–15°C) and warmer days (up to 85°F / 29°C) in summer.
Avoid placing near heating/cooling vents; maintain stable temperatures; protect from sudden temperature drops.
Fertilizing
every 2 weeks during active growth with a balanced orchid fertilizer, none in dormancy
Flush the pot with plain water monthly to prevent salt buildup; fertilize after watering to avoid root burn; adjust frequency based on growth rate.
Propagation
Methods
Stem cuttings (keiki) or division of mature pseudobulb clumps.
Step-by-Step Propagation Guide
- Select a healthy pseudobulb or keiki.
- Cut with sterile tools.
- Apply rooting hormone if desired.
- Plant in moist propagation medium.
- Maintain high humidity.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–80%), warm temperatures (70–80°F / 21–27°C), and bright indirect light.
Medium
Fine orchid bark mix or sphagnum moss with perlite for drainage.
Hormone
Rooting hormone is optional but can speed up root development.
Timeline
Keikis may take 3–6 months to form roots; division may take 1–2 years to establish fully.
Tools Needed
Sterile pruning shears, rooting hormone, propagation tray, humidity dome.
Quick Tips
Keep cuttings moist but not waterlogged; provide consistent warmth; monitor for signs of rot.
Pruning & Repotting
Pruning Guide
Method
Cut flower spikes at the base after blooming; trim dead pseudobulbs at their base with clean cuts.
Pruning Plan
Focus on removing spent flower spikes and dead or damaged pseudobulbs to encourage new growth and maintain plant health.
Tools
Sterile pruning shears or scissors.
Checklist
Use clean tools; cut dead or damaged parts; avoid over-pruning healthy growth; dispose of removed material properly.
Repotting Guide
Best Season
Spring, just before the start of the active growth phase.
Pot Size
One size larger pot (e.g., +2–3 cm in diameter); ensure it has drainage holes.
Method
Remove the plant gently; trim dead roots; place in a slightly larger pot with fresh orchid mix; ensure good drainage and do not overwater after repotting.
Suggestions
Repot every 2–3 years or when the potting medium breaks down; necessary if roots outgrow the pot or if the plant becomes top-heavy.
Checklist
Use fresh orchid mix; trim dead roots; position pseudobulbs above soil level; water sparingly after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water early in the day; ensure proper drainage; adjust frequency seasonally.
How to Apply Water Properly
Water directly onto the root zone, allowing water to saturate the medium but not pool. Ensure excess water drains freely from the pot. Water less frequently in winter, focusing on keeping the roots moist but not waterlogged.
Watering Schedule Tips
Water thoroughly when the top inch of soil feels dry, typically every 7–10 days during active growth (spring/summer); reduce frequency to every 2–3 weeks in winter or dormancy.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate orchid bark for aeration; use sphagnum moss to retain moisture.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or yellowing leaves (too hot or too cold); bud drop or failure to flower (temperature fluctuations); stunted growth (cold stress).
Cold Stress
Low temperatures slow metabolic processes, leading to root damage and reduced nutrient uptake; prolonged cold can cause leaf spotting or necrosis.
Solution: Move plants away from drafty windows or cold surfaces; provide a heat source if temperatures drop below 50°F (10°C); reduce watering in cold conditions.
Hot Stress
Excessive heat can cause dehydration, leaf burn, or wilting; high temperatures combined with intense light may lead to flower bud abortion.
Solution: Increase humidity around the plant; provide shade during peak sun hours; water more frequently but ensure good drainage; use a fan for air circulation.
Fertilizing Guide
Fertilizing Checklist
Use diluted orchid fertilizer; fertilize during active growth; flush periodically; avoid winter fertilization.
Fertilizing Method
Use a balanced orchid fertilizer (20-20-20) diluted to half strength every 2–4 weeks during active growth (spring/summer); reduce or stop fertilizing in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicOncidium altissimum is not known to be toxic to cats. The plant does not produce compounds that are harmful to felines.
⚡ Toxic If:
if eaten
Dogs
Non-toxicOncidium altissimum is not known to be toxic to dogs. The plant does not produce compounds that are harmful to canines.
⚡ Toxic If:
if eaten
Humans
Non-toxicOncidium altissimum is not known to exhibit toxic effects in humans. The plant is generally considered safe for handling and consumption.
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How often should Oncidium altissimum be watered?
A: Water every 7-10 days, allowing the medium to dry slightly between waterings.
Q: Does Oncidium altissimum require special lighting?
A: It thrives in bright, indirect light, similar to other orchids.
Q: Can Oncidium altissimum be grown outdoors?
A: It can be grown outdoors in warm, humid climates, but it is typically cultivated as an indoor plant.
Quick Reference
| Family: | Orchidaceae |
| Care: | moderate |
| Light: | bright, indirect light |
| Water: | every 7–10 days during activ |
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