The Golden Rule of Anthurium Watering
The best way to water anthurium is simple: water when the top inch of soil feels dry, then water thoroughly until it drains from the bottom. This typically translates to every 5-7 days during spring and summer, and every 7-14 days during fall and winter.
However, these timeframes are guidelines, not rules. The actual frequency depends on your specific growing conditions – light, temperature, humidity, pot size, and soil mix all affect how quickly your anthurium uses water.
Rather than watering on a fixed schedule, learn to read your plant’s signals and check the soil before each watering. This approach prevents the two most common mistakes: overwatering (the #1 killer of anthuriums) and underwatering.
How to Check If Your Anthurium Needs Water
The Finger Test (Most Reliable)
Insert your finger about 1-2 inches into the soil:
- Feels dry: Time to water
- Feels slightly moist: Wait another day or two
- Feels wet: Definitely wait – soil is still too wet
This simple test works better than any schedule because it accounts for all the variables affecting your specific plant.
Other Signs to Watch For
Plant needs water:
- Pot feels noticeably lighter when lifted
- Leaves look slightly less perky than usual
- Soil has pulled away slightly from the pot edges
- Surface soil color is lighter and feels loose
Plant is overwatered:
- Yellowing leaves, especially lower ones
- Soft, mushy stems near the soil line
- Soil stays wet for extended periods
- Foul smell from the soil
- Roots appear brown and mushy (healthy roots are firm and white/light tan)
The Right Way to Water Anthurium
Step-by-Step Method
- Check the soil first. Use the finger test described above.
- Water thoroughly. Add water until it flows freely from the drainage holes. This ensures all roots receive moisture.
- Empty the saucer. Never let the pot sit in standing water. Dump excess water from the tray or cachepot within 15-30 minutes.
- Wait until the top inch dries again before the next watering.
Water Quality Tips
- Use room temperature water – cold water can shock the roots
- If your tap water is heavily chlorinated, let it sit overnight before using
- Filtered or rainwater is ideal if your water is very hard (high mineral content)
Seasonal Watering Adjustments
Spring and Summer (Active Growth)
During the growing season, anthuriums use more water:
- Check soil every 4-5 days
- Typically need water every 5-7 days
- Plants in bright light or warm locations may need more frequent watering
- Don’t let soil dry completely between waterings
Fall and Winter (Slower Growth)
As growth slows and light decreases:
- Check soil every 7-10 days
- Typically need water every 7-14 days
- Let the top inch or two dry out more thoroughly
- Be extra careful not to overwater – this is when most problems occur
Important: If you run heating or air conditioning, indoor conditions may not follow seasonal patterns exactly. Always check the soil rather than relying solely on the calendar.
The Humidity Factor
Anthuriums are tropical plants that appreciate humidity levels of 60% or higher. While humidity and watering are separate issues, they’re closely related to overall plant health.
Signs of Low Humidity
- Brown, crispy leaf tips
- Leaf edges turning dry and papery
- New leaves struggling to unfurl properly
- Flowers drying out prematurely
Ways to Increase Humidity
- Use a humidifier near your plants
- Place pots on trays of pebbles with water (ensure pots sit above the water line)
- Group plants together to create a humid microclimate
- Keep plants in naturally humid rooms like kitchens or bathrooms (if light is adequate)
Key point: Increasing humidity does NOT mean watering more frequently. These are separate aspects of care. High humidity reduces water loss through leaves, but the soil still needs to dry appropriately between waterings.
Soil and Potting: The Foundation of Proper Watering
The right soil mix makes proper watering much easier. Anthuriums need a mix that:
- Drains quickly so roots don’t sit in water
- Holds some moisture without becoming waterlogged
- Provides air pockets for root health
Recommended Soil Mix
Standard potting soil alone is usually too dense. Create a better mix by combining:
- 40% potting soil
- 30% orchid bark or coco coir chunks
- 20% perlite or pumice
- 10% peat moss or coco coir fiber
This creates the chunky, well-draining “aroid mix” that anthuriums love. You can also purchase pre-made aroid or orchid mixes at garden centers.
Pot Selection
- Always use pots with drainage holes – non-negotiable for anthuriums
- Terracotta pots dry faster than plastic or glazed ceramic
- Don’t use pots much larger than the root ball – excess soil holds too much water
Common Watering Problems and Solutions
Overwatering (Most Common)
Symptoms: Yellow leaves, soft stems, constantly wet soil, root rot, musty smell
Causes:
- Watering too frequently
- Soil that doesn’t drain well
- Pot too large for plant
- No drainage holes
Solution: Allow soil to dry more between waterings. If root rot is suspected, remove plant, trim affected roots, and repot in fresh, well-draining mix.
Underwatering
Symptoms: Drooping leaves, brown leaf edges, reduced flowering, slow growth
Causes:
- Waiting too long between waterings
- Watering only the surface without soaking through
- Plant rootbound and drying out too quickly
Solution: Water more frequently, ensure thorough watering each time, consider repotting if rootbound.
Inconsistent Watering
Symptoms: Leaf tips browning, flowers dropping prematurely, uneven growth
Solution: Establish a regular checking routine. Consistency helps the plant thrive.
Quick Reference: Anthurium Watering Guide
| Season | Check Soil | Typical Frequency | Key Point |
|---|---|---|---|
| Spring/Summer | Every 4-5 days | Every 5-7 days | Don’t let dry completely |
| Fall/Winter | Every 7-10 days | Every 7-14 days | Let top inch dry more |
Final Tips for Success
- Always check before watering. The finger test takes 5 seconds and prevents most problems.
- Water thoroughly when you do water. Shallow watering leads to shallow roots.
- Empty the saucer. Never let roots sit in standing water.
- Adjust for your conditions. Bright light, warm temperatures, and small pots all increase water needs.
- Watch the leaves. They tell you when something’s wrong with your watering routine.
- Use the right soil. Well-draining mix makes proper watering much easier.
With these guidelines, you’ll develop an intuition for your anthurium’s needs. Remember: it’s easier to revive an underwatered plant than to save one that’s been overwatered. When in doubt, wait another day and check again.
For more detailed anthurium care information, visit Garden Design and Planet Natural.
