Best Fertilizer:

• Balanced liquid houseplant fertilizer
• Diluted to half strength
• Applied every 4–6 weeks

Too much fertilizer can burn the roots, so moderation is important.

7. Fix Your Watering Routine

Improper watering is one of the main reasons peace lilies stop blooming.

The Correct Method:

• Water thoroughly when the top inch of soil feels dry
• Let excess water drain completely
• Never leave the pot sitting in water

Peace lilies enjoy consistent moisture but hate soggy roots.

Warning Signs:

• Yellow leaves = often overwatering
• Drooping leaves = underwatering or thirsty plant
• Brown tips = inconsistent watering or dry air

8. Increase Humidity Around the Plant

Peace lilies are tropical plants that love humidity.

Dry indoor air can stress the plant and reduce blooming.

Easy Ways to Raise Humidity:

• Use a pebble tray with water
• Group plants together
• Run a humidifier nearby
• Mist lightly in dry climates

Higher humidity often leads to healthier foliage and better flower development.

9. Remove Old Blooms Immediately

Dead flowers drain energy from the plant.

Once blooms begin turning green or brown, cut them off near the base using clean scissors.

This helps redirect the plant’s energy into producing:

• New flowers
• Stronger leaves
• Healthier roots

Regular pruning also keeps the plant looking fresh and elegant.

10. Keep Temperatures Stable

Peace lilies dislike sudden environmental changes.

Ideal Temperature Range:

• 65–85°F (18–29°C)

Avoid:

• Cold drafts
• Air conditioner vents
• Sudden nighttime chills
• Hot dry air from heaters

Stress from temperature swings can cause the plant to stop blooming completely.

Bonus Tip: Do Not Panic If Blooms Turn Green

Many peace lily owners think green flowers mean something is wrong.

In reality, blooms naturally age from white to green as they mature. This is normal and simply means the flower is nearing the end of its cycle.

You can trim older blooms to encourage fresh flowering.

Common Mistakes That Prevent Peace Lily Flowers

Avoid these common problems:

Keeping the Plant in Dark Rooms

Low light is the number one reason peace lilies stop blooming.

Overwatering Constantly

Soggy roots weaken the plant quickly.

Ignoring Root Crowding

Extremely root-bound plants struggle to flower.

Never Fertilizing

Flowering plants need nutrients to produce blooms.

Using Cold Water

Room-temperature water is much safer for tropical plants.

Why May Matters So Much

May marks the beginning of the strongest growth period for peace lilies. The combination of warmer temperatures and longer daylight hours gives the plant an opportunity to produce fresh leaves and flowers rapidly.

If you handle these 10 tasks now, your peace lily can reward you with lush foliage and elegant white blooms throughout the growing season.

A neglected peace lily may survive.
But a properly cared-for peace lily in May can absolutely thrive.