Beginner’s guide
Care tips
You love your plants, but they don’t seem to return the favor? Yellow leaves, slow growth, unexplained dropping… Don’t panic! Most problems come from simple mistakes that are easy to fix. Here are the 10 most common mistakes with indoor plants, and most importantly, how to avoid them to get your plants healthy again.
1. Overwatering (the number 1 mistake!)
The problem: Too much water suffocates roots, causes rot, and attracts gnats.
How to avoid it: Water only when the top few centimeters of soil are dry to the touch. Prefer a pot with drainage and always empty the saucer after watering. In winter, reduce watering frequency by half.
💧 Verdeia Tip
Use the finger test: insert your finger 2-3 cm into the soil. Dry = water. Moist = wait.
2. Neglecting drainage
The problem: A pot without a drainage hole = stagnant water = rotten roots.
How to avoid it: Always choose pots with drainage holes, or use the decorative pot technique (inner pot with drainage + decorative pot). Add a layer of clay pebbles at the bottom if needed.
3. Placing the plant in the wrong spot
The problem: Every plant has its light requirements. A tropical plant in direct sunlight will burn, a succulent in the shade will wither.
How to avoid it: Learn about the specific needs of each plant. Bright indirect light for most tropical plants, direct sunlight for cacti, partial shade for ferns. Check our light and humidity guide to learn more.
4. Forgetting to dust the leaves
The problem: Dust blocks photosynthesis and prevents the plant from breathing properly.
How to avoid it: Wipe large leaves with a damp cloth once a month, or shower your plants with lukewarm rainwater. Your plants will breathe better and look healthier!
5. Using unsuitable soil
The problem: Soil that is too compact, too poor, or unsuitable for the plant type.
How to avoid it: Use a specific soil mix: well-draining soil for cacti (ideal for cacti and succulents), rich soil for green plants (perfect for Monstera, Ficus), airy soil for orchids. Add perlite to improve drainage if needed.
6. Repotting too early (or too late)
The problem: Repotting a young plant stresses it unnecessarily. Waiting too long suffocates the roots.
How to avoid it: Repot only when roots come out of the drainage holes or growth slows down. Ideally in spring, in a pot just slightly larger (2-3 cm more in diameter).
7. Ignoring ambient humidity
The problem: Many indoor plants like the Monstera, Calathea, or Philodendron are tropical and suffer from dry heating air.
How to avoid it: Regularly mist the leaves, group your plants to create a microclimate, use a humidifier, or place the pots on trays of wet clay pebbles. Goal: 50-60% humidity for tropical plants.
🌿 Good to know
The bathroom is often the most humid place in the house, ideal for tropical plants!
8. Fertilizing carelessly
The problem: Too much fertilizer burns the roots, too little starves the plant.
How to avoid it: Fertilize only during the growing season (spring-summer), every 2-4 weeks with a fertilizer diluted by half. In autumn-winter, stop or drastically reduce. Less is often more!
9. Panicking at the first sign of stress
The problem: One yellow leaf and you change everything: location, watering, repotting… which stresses the plant even more.
How to avoid it: First observe calmly. A single yellow leaf is normal (natural renewal). Several leaves? Analyze: too much water, too little, lack of light? Change ONE thing at a time and wait 2-3 weeks before adjusting again.
⚠️ Patience!
Plants need time to adapt. Change only one factor at a time.
10. Not adjusting care to the seasons
The problem: Continuing to water and fertilize in winter as if it were summer while the plant is dormant.
How to avoid it: In autumn and winter, reduce watering (the plant uses less), stop fertilizing, and accept slower growth. This is normal! In spring, gradually return to the summer routine.
Mini FAQ
Yellow leaves are usually caused by overwatering (the number one cause), lack of light, or nutrient deficiency. First check the soil moisture: if it’s soggy, space out watering. If the soil is dry and the plant lacks light, move it near a window. A single yellow leaf on an old lower leaf is normal.
There is no universal rule. The frequency depends on the plant, the season, the temperature, and the ambient humidity. The best method: stick your finger into the top 2-3 centimeters of soil. If it’s dry, water. If it’s moist, wait. In winter, generally halve the watering frequency compared to summer.
Signs of a lack of light include: stems that grow abnormally long (etiolation), pale leaves or leaves losing their bright colors, very slow or stopped growth, and falling leaves. Gradually move the plant to a brighter spot, but avoid harsh direct sunlight.
Yes, in most cases! Stop watering immediately and let the soil dry out completely. Remove the plant from the pot to check the roots: if they are brown and soft, cut away the rotten parts with a disinfected tool. Repot in fresh, dry soil with good drainage. Wait 1-2 weeks before watering again, very lightly.
No, most indoor plants go dormant or greatly slow their growth in winter due to lack of light. Fertilizing during this time can burn roots because the plant doesn’t absorb nutrients. Stop fertilizer from October to March, and gradually resume in spring.
Several effective solutions: group your plants together to create a humid microclimate, place pots on trays filled with clay pebbles and water (without the pot’s bottom touching the water), use a humidifier, or mist the foliage 2-3 times a week.
Repot when you notice these signs: roots coming out of the drainage holes, water no longer soaking in properly, slowed growth despite good conditions, or the plant drying out very quickly after watering. The best time is spring (March-May). Discover our plant care guide.
Leaf drop can have several causes: sudden environmental change (moving, recent purchase), too much or too little water, lack of light, cold drafts, or pests. A few old leaves falling naturally is normal. If the drop is massive, check watering and placement first.
Final word
The good news? All these mistakes are reversible and easy to fix once you know them. Observation remains your best tool: learn to read your plants’ signals, adjust gently, and you’ll quickly see the difference.
Your plants will thank you with vigorous growth, shiny leaves, and radiant health. 🌿
Need a little help to get off on the right foot? Discover our selection of tolerant plants, perfect for avoiding these common mistakes.

