Peace lily flower

Peace Lily Seed Germination (Spathiphyllum spp.)


I love my peace lily. It sits in a dark corner and sends me flowers. I’m constantly amazed at how it flowers without bright sunlight, but it sure does. I’m convinced it’s the warm temperatures inside my home that make it flourish. A friend asked me if it is possible to germinate peace lily seed. She found some online and wants to give it a whirl. Always up for an experiment, we made it a joint project.

One of the things we found out is that, if the germination project is successful, it will take our new peace lily plants years to produce their first flowers. If it’s the flower you’re after, and sooner rather than later, division of an existing peace lily is the way to go.

What you’ll need to plant peace lily seed

  • Planting container
  • Planting mix, optional
  • Orchid mix, coco coir and vermiculite, optional


Potting mix

Seeds are subject to a disease known as damping off, caused by a number of soil-borne pathogens. Damping off causes the seed to rot or attacks the seedling at the soil or crown. One way to avoid damping off is to not use a potting mix containing soil when germinating seeds.

Nurseries carry germination potting mixes that don’t contain soil, but are composed of peat moss, sand, perlite and other non-soil materials.

For the peace lily, I made my own mix by combining orchid mix, coco coir and vermiculite. One study I read suggested perlite and peat moss but I prefer vermiculite because it seems to hold moisture better. And coco coir is far preferable to peat moss as it holds water better and it doesn’t compact.

Full disclosure: I get commissions from purchases made through links in this post. I haven’t received any products for free — all of the ones I refer you to are those that I purchase and use in my own garden.

Mix all the ingredients well in a large nursery pot and then pour water over them. Stir as you moisten the mix so that all the ingredients are wet and thoroughly combined with the other ingredients.

Plant the peace lily seeds

Set the peace lily seeds on top of the mixture and then sprinkle a light layer of vermiculite over them. Don’t bury them, but lightly cover. Water again. Cover the pot with a piece of glass or plastic wrap and give it bright, but filtered sunlight. If you’re using grow lights, put them 6 inches above the pot and leave them on for 10 to 12 hours per day.

The cover on the container should act as a mini-greenhouse, keeping the soil moist but it’s always a good idea to check the planting mix every few days to make sure. You want it to remain about as moist as a well-wrung sponge. If you do need to water, avoid disturbing the seed by bottom-watering. Place the container in a larger container filled with enough water to come about half-way up the sides of the smaller container. Allow the germination container to sit in the water until the surface of the soil is damp.

If all goes well, you’ll have peace lily seedlings within 10 days. But. . .it may take significantly longer. Which is why commercial growers don’t generally grow peace lily from seed.

About the peace lily

The peace lily isn’t a true lily — in fact, it’s in an entirely different plant family (Araceae as opposed Liliaceae). A tropical plant, it takes surprisingly well to being grown indoors and demands little care. It even wilts to let you know it needs water and it’s one of the plants that the NASA study found helps clean indoor air of benzene, formaldehyde and a couple of other nasty chemicals. It does cause problems for pets or kids that decide to chew on the leaves. Although it probably won’t kill them, the leaves do contain calcium oxalates which will make them feel as if they’ve just been to the dentist, with numbness around the mouth and tongue and drooling. Learn more about the plant’s toxicity on the ASPCA website.

Of course if you live in a tropical or sub-tropical region you can grow the peace lily outdoors in a shady area. Indoors, stick it in a shady corner and it will still flower for you. Now, just because this is a plant that forgives stuff that most others will keel over and die without, don’t neglect it completely.

Care of your peace lily

The peace lily typically blooms in spring so give it a shot of organic fertilizer to help it along. Dr. Bloom makes a decent one or use compost tea if you’re the DIY type. Dilute the fertilizer to half strength and fertilize once a month throughout spring and summer.

I mentioned the infamous peace lily “droop” earlier. Once you see it a few times you’ll get a feel for how often the plant needs to be watered. When you do water, use chlorine-free water and drench the soil until the pot feels noticeably heavier and the excess water is draining from the bottom.

If you feel like you’re watering more often than you used to, check the bottom of the pot. If you see roots, it’s time to repot. This is a great time to divide the plant as well, giving you brand new peace lilies to share with your friends. As you gently brush the soil away from the plant’s roots you’ll see lots of places where you can separate smaller peace lilies. Pot them up immediately so the roots don’t dry out.

Photo Courtesy: RuffLife/