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July 11, 2022

How to Get a Peace Lily to Bloom

Peace Lily, also known as Spathiphyllum, is one of the most popular houseplants, mostly because of its pretty white flowers. One of the most frequent questions I get regarding Peace lily care is, “How to get a Peace Lily to bloom? I’ve had my plant for X years and it never flowers”.

In this guide, you’ll learn everything you need to know about how to properly care for a Peace Lily and see your Peace Lily flower, easily!

I’ve had these large Peace Lilies for 2 years now and they’ve been blooming non-stop. Every 3 to 4 months they put out a new set of flowers, from 5 to 12 flowers at a time. So, it’s possible, you just need to know some easy tricks that make these pretty Peace Lilies bloom!

My Peace Lilies are huge and I don’t think you can actually comprehend the size of them until you see them next to me. 🙂 Currently, they have 11 flowers and it’s the second set of Peace Lily flowers in the last 12 months. I pollinated most of them and am now expecting seeds.

Peace Lily flowers on Mr. Houseplant's 2-year old plant

When Does a Peace Lily Flower?

Peace Lily, like most other plants that bloom, needs to reach a certain level of maturity before it can flower. If you’ve just bought a small plant, you may need to wait for a few months, perhaps even years before it reaches the level of maturity where it can bloom.

The most important thing is that the more light you provide it with, the faster the plant will develop and reach that flowering level of maturity. Flowering takes a lot of energy from the plant, so it needs a lot of light to bloom. Ideally, get a light meter so you can be certain how much light it gets. Regardless of its natural flowering season, with a proper amount of light, you can get your peace lily to bloom any time of year.

Once your Peace Lily flowers, be aware that the blossoms don’t stay white and pretty forever. They may start turning green, brown or yellow, and die after a few weeks. And that’s all normal. Once they reach this point, I suggest you cut them off, as I do. My Peace Lily flowers stay perky much longer because I pollinate them, so they need a long time to produce seeds. If you’re interested in pollinating your Peace Lily as I do, learn all about it in my blog post How to Pollinate a Peace Lily Plant.

How Do I Get My Peace Lily to Flower?

To get your Peace Lily plant to flower the trick is — give it more light! Peace Lilies need light to photosynthesize. In fact, flowering plants need even more light than their non-flowering relatives. Yes, Peace Lilies can survive in incredibly low light levels (even as low as 100 lux (10 foot candles)), but they will just be surviving, not thriving, their growth would be very slow, and they would definitely not bloom. If you give your peace lilies light over 10,000 lux (1,000 foot candles), they should bloom after several months.

Peace Lily fully flowering 😊

Light is the Most Important Factor for a Peace Lily to Bloom

You can encourage flowering by providing your Peace Lily with bright indirect light. This type of light is light over 3,000 lux (300 foot candles), but I recommend at least 10,000 lux (1,000 foot candles) for flowering. In nature, Peace Lilies grow under the canopy where they get 20,000 lux (2,000 FC) of indirect light, plus some dappled sun that comes through the canopy. Notice the difference in natural outdoor light and indoor light conditions.

But Peace Lily is still one of the most low-light tolerant plants; smaller-sized varieties can survive in as low as 200 lux (20fc). In those conditions, however, you will not see a Peace Lily flower. More flowers and seed production require a lot of energy, and just like any other plant, peace lilies get that energy from light/the sun.⠀

Providing 2 to 3 hours of early morning direct sunlight will help (direct sunlight provides light between 40,000 lux to over 100,000 lux (4,000 – 10,000 FC)), so 1 hour of direct sun can replace 10 to 20 hours of indirect light, even more). As long as the direct sun is not strong (it’s early morning sun), Peace Lilies shouldn’t burn. It’s best to acclimate your Peace Lily to direct sun gradually. Start with very early morning sun, e.g. from 8 to 9 am, for a week, the gradually increase to 2-3 hours. Have in mind that light intensity also depends on where you’re located (the sun will be stronger in some places than others), and the type of windows you have – how much sun they’re blocking. Be careful to not let its leaves lean against a window; if the window gets too hot, that can also burn the leaves.

Early morning direct sun helps Peace Lily blooming

Besides Light, What Else Can I Do to Make A Peace Lily Bloom?

Of course, you can do more to make a peace lily bloom than just light. Watering, choosing the right soil mix, fertilizing, repotting, temperature, and humidity need to be considered as well, as they need to be good in order for Peace Lilies to bloom, and I explained them all in the blog post on how to grow and care for a peace lily.

If you get to know your Peace Lily really well and respond to its needs timely and properly, it can bloom frequently just like mine.

Yours Truly,

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