a peace lily flowering indoors

Peace Lily Not Flowering? Here’s Why!

Peace lilies are wonderful plants in both their stunning dark green and white colouring and representation of peace. Able to grow indoors as a houseplant or outdoors in flower beds, the peace lily is a fairly low-maintenance addition to any outdoor or indoor garden. However, one common issue that gardeners come across is their peace lily, not flowering. There can be several reasons for this, but each has a fix! Find out what to do about a peace lily not flowering with our six problems and solutions.

What Is A Peace Lily?

A peace lily is a beautiful plant that can be grown indoors and outdoors in the right zones. It has luscious dark green leaves and lovely white banner-like flowers for a colour combination that is sure to win you over. The peace lily grows naturally in the tropical rainforests of Venezuela and Columbia but was introduced into Europe in the late 1800s. True to its name, this plant has become a sign of peace, and the white flowers represent the internationally recognised colour of a truce. 

How To Grow A Peace Lily

Peace lilies are fairly low-maintenance plants that should be grown in bright spots out of the way of direct sunlight. Once you have planted your peace lily, either indoors or out, you should water it regularly, especially during dry spots if you are growing yours outdoors – you want the compost or soil to be moist, not wet. During spring and summer, you should feed a houseplant peace lily with a portion of liquid food. Throughout the year, you’ll want to deadhead dying blooms and dust the leaves regularly to ensure good photosynthesis. You can find out more about how to grow a peace lily here.

You should be aware that peace lily leaves can cause vomiting and swelling of the tongue if ingested. So, keep children and pets away. 

Why Is My Peace Lily Not Flowering?

potted peace lilies on a windowsill

Knowing how to grow a peace lily is important knowledge. However, many owners of peace lilies become faced with a plant that simply won’t flower. Although the leaves of the peace lily are no doubt beautiful on their own, the flowers are its most renowned features. 

Many issues with a peace lily not flowering stem from their natural habitat of the tropical rainforest. Peace lilies need similar conditions to flower adequately. However, there may be other factors that can affect this plant’s growth. 

Is your peace lily not flowering? Here are six reasons why this can happen and what to do about them. 

Insufficient Light

Although peace lilies are robust enough to survive through tough conditions, they will take their toll. One of the most common reasons behind a peace lily not flowering is that it doesn’t have sufficient light. In low lighting, your peace lily will not produce enough energy to bloom. Fortunately, lighting problems are one of the easiest to correct, particularly with houseplants. To give it the right amount of light, you should move your peace lily close to a window in a bright spot that avoids direct sunlight, which can harm the plant. North facing and west facing gardens and window sills provide the perfect natural conditions for growing a peace lily. 

Unnatural Conditions

Under the natural conditions of the rainforest, the peace lily produces the majority of its flowers during the darker days of winter. Through late winter and spring, as the temperatures begin to warm up, the plant will produce flowers sporadically. However, there are modern varieties, such as ‘Connie’ and ‘Little Angel’, that are able to provide flowers for a longer time. 

Once you have planted up your peace lily in the ideal location with plenty of indirect sunlight, you should regularly deadhead it to encourage further healthy blooms. 

Not Enough Feeding

a peace lily flowering outdoors

If your peace lily doesn’t have enough nutrients, it will not be able to produce any flowers. As such, you should feed it regularly during spring and summer. They will need a balanced, water-soluble food. Additionally, you should fertilise your peace lily to ensure it gets plenty of nutrients. Ideally, a fertiliser with a nutrient value of 20-20-20 will do the trick. After fertilising your plant, make sure to water it well so that the fertiliser can reach the entire root system. 

Although a peace lily will need regularly feeding in spring and summer, you should also feed it in autumn and winter to help it produce blooms. Ideally, you should feed your peace lily every 2 to 3 weeks during spring and summer and every 6 to 8 weeks throughout autumn and winter. 

Incorrect Watering

Peace lilies need a good watering procedure – too much water can lead to root rot, and not enough can lead to the plant to start drooping. You should monitor every time you water your peace lily carefully, as you want to water it just enough that water begins to appear coming through the drainage holes at the base of the pot or until the soil is moist but not wet outdoors. Then, you should let the peace lily dry out completely before watering again. 

An incorrect watering schedule is another of the most common reasons behind a peace lily not flowering. Your peace lily will let you know if you are watering it too much, as its leaves will slowly turn yellow and start to droop. This is a precursor to root rot and must be caught early to avoid disaster.

Needs Repotting

Peace lilies grown as houseplants can outgrow their pots, and a need to repot may be the cause of your peace lily not flowering. If the plant is not blooming and the roots are growing thickly out of the base of the pot, it’s likely that it needs repotting. Often in these cases, cramped roots are behind your peace lily not flowering since they receive limited nutrients. 

You should repot your peace lily into a pot the next size up. Don’t go any higher than this, as a pot that is too big can lead to waterlogging. Finally, ensure that your peace lily will have sufficient drainage in its new pot. 

Wrong Temperature

Although peace lilies aren’t too sensitive to temperature, a peace lily in the perfect temperature conditions will bloom more profusely. During the colder months, the ideal temperature for a peace lily is between 15.5 – 18°C, and in spring and summer, you should try to keep it between 21-24°C. If you can grow your peace lily in these temperatures, you will have a happier plant with a longer flowering season. 

Understanding Why Your Peace Lily Is Not Flowering

a peace lily not flowering yet being repotted

Understanding why your peace lily is not flowering can be tricky, but once you understand the reason, you can go about fixing it! It’s important to remember that traditional varieties of peace lily are accustomed to the conditions of a tropical rainforest, so your peace lily not flowering as well as you’d hoped likely says more about the conditions of your area than it does about your gardening skills! However, if you can take the right steps to fix any potential issues behind your peace lily not flowering, you should soon have a beautifully blooming plant livening up your windowsill or flowerbed.

Do you have any other reasons behind a peace lily not flowering? Or maybe you have your own solutions to some of the issues we discussed? Leave your thoughts and advice in the comments below!

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