An east or west-facing window works well; indoors, supplement with grow lights if needed.
Temperature:
Daytime: 65–75°F (18–30°C)
Nighttime: 55–60°F (13–16°C)
Avoid sudden temperature drops and cold drafts.
Watering:
Water thoroughly when the top inch of medium feels dry.
Always check the moisture levels of the potting mix prior to watering.
During active growth (extremely hot climate), keep soil evenly moist but not soggy.
Reduce watering slightly during cooler periods.
Humidity:
Prefer humidity levels around 50–70%.
Increase humidity with a humidifier, pebble trays, or misting, especially in dry environments.
Repotting:
Every 2–3 years or when roots outgrow the pot.
Use a well-draining orchid mix (bark, perlite, charcoal).
Repot after blooming or when new roots appear.
Blooming:
Cool night temperatures and adequate light promote flowering.
Proper rest after flowering encourages the next bloom cycle.
Additional Tips:
Provide good air circulation.
Prune after blooming to remove spent canes.
Keep an eye out for pests like aphids, scale, or mealybugs.
Fertilization Guide for Dendrobium Orchids
Choose the Right Fertilizer
Use a balanced orchid fertilizer, such as 20:20:20, or a formula specifically designed for orchids.
You can also use a bloom booster fertilizer (e.g., 6:30:30) during blooming periods.
To promote healthy roots, use P40 / 10:52:10.
For leaf growth, 30:10:10 can be used.
Additional Tip: Once every month, spray Calcium, Magnesium and Atonik growth hormone to encourage stronger stems, larger flowers, and frequent blooming. Use ONLY once a month.
Dilute the Fertilizer
Follow the manufacturer’s instructions to dilute to half or quarter strength.
Over-fertilizing can damage roots or cause salt buildup.
Determine the Fertilization Schedule
During active growth: feed every 2 weeks.
During monsoons: reduce to once a month, or stop fertilizing during dormancy if your orchid is resting.
Do not use different varieties of fertilizer on the same day. Maintain at least a 2-day gap.
Water the orchid with plain water first to prevent root burn.
Then spray/apply diluted fertilizer to the potting mix, ensuring even coverage and avoiding direct contact with leaves or pseudobulbs.
Water Out Excess Fertilizer
After about 15–20 minutes, water lightly with plain water to wash away residual fertilizer salts and prevent buildup.
Observe and Adjust
Watch for signs of over-fertilizing, such as leaf tip burn or root issues.
If you notice problems, reduce the frequency or strength of fertilization.
Additional Tips: Never fertilize a stressed or diseased plant—wait until it recovers. During flowering, a bloom booster can promote larger or more abundant flowers.
Vanda Orchids
Understand Vanda Orchid Basics
Vanda orchids are epiphytic plants; they naturally grow on trees, with roots exposed to air.
They are known for vibrant, long-lasting flowers and need conditions that mimic their natural environment.
Choose the Right Growing Medium
Use a well-draining airy medium such as coarse bark, charcoal, or specialized orchid mix.
Alternatively, grow in hanging baskets with minimal substrate so roots hang freely.
Provide Adequate Light
Bright, indirect sunlight is best.
Near east or south-facing windows; outdoors use filtered sunlight or partial shade.
Avoid harsh midday sun to prevent leaf scorch.
Watering Schedule
Water thoroughly when roots and substrate are nearly dry.
During active growth (spring/summer): water 2–3 times a week.
Reduce watering during monsoons.
Ensure good drainage—roots should not sit in water.
Humidity and Air Circulation
Maintain 60–80% humidity.
Use a humidifier or a humid environment (like a greenhouse) if indoors.
Improve air circulation with fans/spacing to prevent fungal issues.
Temperature Requirements
Daytime: 85–95°F (29–35°C)
Nighttime: 70–75°F (21–24°C)
Protect from cold drafts or temperatures below 50°F (10°C).
Fertilizing
Use a balanced orchid fertilizer (e.g., 20-20-20) diluted to half strength.
Fertilize weekly or every two weeks during active growth; reduce during dormancy.
Optionally use a high-phosphorus bloom booster monthly to promote flowering.
Follow the same fertilization guide used for Dendrobium orchids.
Pruning and Maintenance
Remove dead/damaged roots and leaves with sterilized scissors.
After flowering, trim flower spikes if desired.
Repot/refresh the medium every 1–2 years to prevent compaction.
Flowering and Dormancy
Vandas bloom once or twice a year; flowers can last several weeks.
After flowering, reduce watering and fertilizing to encourage rest.
Provide cooler nights to stimulate blooming.
Pests and Diseases
Watch for pests like scale, aphids, or mealybugs.
Treat infestations with insecticidal soap or neem oil.
Ensure good airflow and proper watering to prevent fungal infections.
Additional Tips
Keep roots exposed or loosely attached to mimic natural conditions.
Check roots often: healthy roots are silvery/green; brown or soft roots indicate problems.
