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You can grow calla lily plants successfully whether you’re a beginner or a seasoned gardener, and this guide will show you exactly how.
Learning how to grow calla lily plants is easier than most people think because these elegant blooms are surprisingly low-maintenance once you understand their basic needs.
If you’ve been wondering how to grow calla lily plants in your garden or in containers, the secret really comes down to the right soil, light, and watering routine.
In this post, we’ll cover how to grow calla lily plants from rhizomes, how to care for them indoors and outdoors, and the best ways to keep them blooming year after year.
Let’s dig in and get those gorgeous trumpet-shaped flowers growing.
How to Grow Calla Lily Plants: The Basics You Need to Know
The best way to grow calla lily plants is to start with healthy rhizomes and plant them at the right depth and time.
Calla lilies aren’t grown from seeds for most home gardeners, so the process of how to grow calla lily plants always begins with these fleshy, bulb-like structures.
When you plant calla lily rhizomes, you want to place them about 3 to 4 inches deep with the pointed side facing up.
Spacing matters too, so give each rhizome about 12 to 18 inches of room to spread out and breathe.
The ideal time to grow calla lily plants outdoors is in the spring after the last frost has passed and the soil has warmed up.
You can also start them indoors in pots about a month before the last frost, then move them outside when temperatures stay above 55°F.
This early start gives you a head start on enjoying those stunning blooms.
1. Choose the Right Location for Your Calla Lilies
To grow calla lily plants well, location is everything.
Calla lilies love bright, indirect sunlight, though they can handle some morning sun and afternoon shade, especially in hotter climates.
If you live in a region with intense summer heat, a spot with dappled shade will help your calla lilies thrive.
Too much harsh afternoon sun can scorch the leaves, while too little light means fewer flowers.
So when you decide how to grow calla lily plants, aim for that sweet spot of six hours of gentle light each day.
Indoors, place your potted calla lilies near a bright window but keep them out of direct midday rays.
2. Use Well-Draining Soil for Healthy Roots
The soil you choose plays a huge role in how to grow calla lily plants successfully.
Calla lilies prefer rich, loamy soil that stays consistently moist but never waterlogged.
Soggy conditions can cause the rhizomes to rot, so good drainage is non-negotiable.
A mix of potting soil with some perlite or sand works perfectly for container planting.
If you’re growing them in the ground, amend your garden soil with compost to improve both drainage and fertility.
You also want the soil pH to be slightly acidic to neutral, around 6.0 to 7.0, for the best results.
This foundation ensures your calla lilies get the nutrients they need without sitting in wet muck.
3. Watering Your Calla Lily Plants the Right Way
When you learn how to grow calla lily plants, you quickly realize that watering is the most delicate balance.
Calla lilies like consistent moisture during their active growing season, which is spring through summer.
Water them thoroughly whenever the top inch of soil feels dry to the touch.
But here’s the trick: reduce watering once the flowers fade and the leaves start to yellow.
This signals the plant is entering dormancy, and it needs drier conditions to rest.
During dormancy, you can actually stop watering almost entirely for several weeks.
Overwatering during this rest period is one of the most common ways to kill calla lilies, so be careful.
How to Grow Calla Lily Plants Indoors and in Containers
Growing calla lilies in pots is a fantastic option if you don’t have garden space or want to enjoy them on a patio.
The process of how to grow calla lily plants in containers is very similar to outdoor planting with a few tweaks.
Choose a pot that’s at least 10 to 12 inches deep with drainage holes at the bottom.
Fill it with a high-quality potting mix, plant your rhizomes, and water well.
Keep the pot in a warm spot with bright, indirect light.
One of the best parts about container planting is that you can move your calla lilies around to find the perfect light.
You can also bring them indoors during winter to protect them from frost.
This flexibility makes learning how to grow calla lily plants in pots a great choice for apartment dwellers too.
1. Fertilizing Your Calla Lilies for More Blooms
Fertilizer helps your calla lilies produce bigger, more abundant flowers when you grow calla lily plants.
Start with a balanced, water-soluble fertilizer every two weeks during the growing season.
Something like a 10-10-10 formula works wonders for overall plant health.
Once flower buds begin to form, switch to a fertilizer higher in phosphorus, like a 15-30-15 blend, to boost blooming.
Stop fertilizing entirely when the leaves start dying back in late summer or fall.
This allows the plant to transition into dormancy naturally.
Too much fertilizer, especially nitrogen, can lead to lush leaves but few flowers.
So keep the feeding schedule balanced and consistent for the best show.
2. Overwintering and Storing Your Calla Lily Rhizomes
If you live in a colder climate, you’ll need to know how to grow calla lily plants across multiple seasons.
Calla lilies are not frost-hardy, so you must lift the rhizomes before the first hard freeze.
After the foliage dies back, carefully dig up the rhizomes and let them dry for a few days.
Brush off the excess soil, and trim away any dead leaves or roots.
Store them in a cool, dry place like a garage or basement, ideally around 50°F.
You can stash them in a paper bag filled with peat moss or sawdust to keep them from drying out completely.
Check them periodically and discard any that show signs of rot or mold.
Come spring, you can replant these same rhizomes and start the process of how to grow calla lily plants all over again.
Common Mistakes to Avoid When You Grow Calla Lily Plants
Even when you follow all the right steps, a few common errors can trip you up when you grow calla lily plants.
One big mistake is planting rhizomes too shallow, which leaves them exposed to cold and drying winds.
Another is planting too deep, which delays sprouting and can cause rot.
Overwatering is probably the most common killer, as calla lilies hate sitting in soggy soil.
On the flip side, letting them dry out completely during the growing season can cause buds to drop.
Skimping on light is another issue, especially indoors, where weak light leads to leggy growth and few blooms.
Also, don’t rush to move them outdoors in early spring, as a late frost can damage tender new shoots.
And finally, don’t cut the foliage back until it’s completely yellow, as the leaves feed the rhizome for next year.
Avoid these pitfalls, and your calla lilies will reward you with waves of color.
So, How Do You Grow Calla Lily Plants Successfully?
You can grow calla lily plants successfully by giving them the right balance of light, moisture, and seasonal care.
It’s not about being a master gardener, it’s about following a few simple rules consistently.
You can grow calla lily plants both indoors and outdoors, and they can thrive in garden beds or containers.
You can grow calla lily plants from spring through summer by planting healthy rhizomes at the proper depth.
You can grow calla lily plants year after year by lifting and storing the rhizomes over winter in cold zones.
So whether you’re drawn to the classic white blooms or the bold yellow, pink, or purple varieties, you now have the roadmap.
Grab your rhizomes, prep your soil, and start planting, because these graceful flowers are well worth the effort.
Happy gardening, and enjoy the stunning beauty your calla lilies will bring to your home and garden.