Can You Plant Calla Lilies In The Summer

You can plant calla lilies in the summer, but it requires a bit of strategy and care to ensure they thrive in the heat.

If you’ve been wondering whether you can plant calla lilies in the summer, the short answer is yes, but timing and conditions matter a lot.

Planting calla lilies in summer is totally doable, especially if you live in a region with mild summers or if you’re willing to give them a little extra attention.

In this post, we’ll explore why you can plant calla lilies in the summer, how to do it successfully, and what mistakes to avoid so your blooms don’t suffer.

Let’s dig into the details of summer planting for these elegant, trumpet-shaped beauties.

Why You Can Plant Calla Lilies In The Summer

You can plant calla lilies in the summer because they are warm-season perennials that actually enjoy heat once established.

Unlike some bulbs that need a cold dormancy period, calla lilies are native to South Africa and naturally grow in warm, wet conditions.

This means planting calla lilies in summer aligns with their natural growth cycle, as long as you get them in the ground early enough to establish roots before the hottest days.

Summer planting also works well if you’re using potted calla lilies that are already sprouted, since they’ve already started their growth cycle.

The key is to avoid planting calla lilies in the summer during extreme heatwaves, because the young plants can struggle with transplant shock.

1. Warm Soil Promotes Faster Root Growth

When you plant calla lilies in summer, the soil is already warm, which encourages rhizomes to sprout quickly.

Calla lily rhizomes need soil temperatures above 60°F to begin growing, and summer soil easily hits that mark.

This means your calla lilies won’t sit dormant for weeks like they might in cooler spring soil.

Instead, planting calla lilies in summer gives them a rapid head start, so you’ll see leaves and buds sooner than expected.

Just make sure the soil is well-draining, because soggy warm soil can rot the rhizomes before they take hold.

2. Long Daylight Hours Boost Flowering

Summer’s long days are another reason you can plant calla lilies in summer and still get blooms.

Calla lilies are photoperiod-sensitive, meaning they use daylight length to trigger flowering.

When you plant calla lilies in summer, they receive maximum sunlight, which helps them produce those gorgeous blooms faster.

If you plant them in early summer, you might even get a late-season flush of flowers before the first frost.

So for gardeners who missed the spring window, planting calla lilies in summer is a smart way to catch up.

3. Consistent Summer Heat Mimics Their Native Climate

Calla lilies come from regions with warm, rainy summers, so planting calla lilies in summer isn’t a fight against nature.

The heat actually helps them grow stronger stems and larger leaves, as long as they have enough moisture.

This is why you can plant calla lilies in summer in most climates, from humid southern states to cooler northern zones.

The trick is to provide consistent watering so the heat doesn’t dry out the shallow rhizomes.

How To Plant Calla Lilies In Summer Successfully

If you’ve decided to plant calla lilies in summer, follow these practical steps to give them the best chance of success.

Summer planting needs a little more care than spring planting, but the results are worth it.

Here’s how to do it right.

1. Choose The Right Location

When you plant calla lilies in summer, pick a spot with morning sun and afternoon shade.

Full afternoon sun in July can scorch the leaves, especially in hotter regions.

Calla lilies prefer about six hours of sunlight, so a spot that gets gentle morning rays is perfect.

This will keep the soil cooler and protect your newly planted calla lilies from heat stress.

2. Prepare The Soil With Organic Matter

Before you plant calla lilies in summer, amend the soil with compost or aged manure.

This improves drainage and adds nutrients that sustain the plants through the hot months.

Calla lilies love slightly acidic to neutral soil, so aim for a pH between 6.0 and 7.0.

Working in organic matter also helps the soil retain moisture, which is critical when planting calla lilies in summer heat.

3. Water Deeply And Frequently

Watering is the most important factor when you plant calla lilies in summer.

Unlike spring-planted calla lilies, summer-planted ones need more frequent watering to combat evaporation.

Water deeply right after planting, then keep the soil consistently moist but not waterlogged.

A layer of mulch around the base will help lock in moisture and keep the roots cool.

4. Plant Rhizomes At The Right Depth

When you plant calla lilies in summer, place the rhizomes about four inches deep with the growing tips facing upward.

Space them about 12 inches apart to allow for good airflow, which prevents fungal diseases in humid summer weather.

After planting, water them in well and wait for the first shoots to appear within a couple of weeks.

Don’t be alarmed if they take a little longer in extreme heat, they’re just focusing on root growth first.

Common Mistakes When You Plant Calla Lilies In The Summer

Even though you can plant calla lilies in summer, there are some pitfalls that can ruin your efforts.

Avoid these errors to keep your calla lilies healthy and blooming.

1. Planting Too Late In The Season

One mistake is planting calla lilies in summer too late, like in August or September.

While you can plant calla lilies in summer early on, late planting means they won’t have enough time to establish before winter.

This is especially true in colder zones where frost arrives early.

If you’re planting late summer, consider growing them in containers so you can move them indoors later.

2. Overwatering In The Heat

It’s easy to overwater when you plant calla lilies in summer, thinking they need extra moisture.

But calla lilies hate sitting in soggy soil, which causes rot.

Always check the top inch of soil before watering, and only water when it feels dry.

A good rule is to water deeply every few days, not a little bit every day.

3. Skimping On Fertilizer

When you plant calla lilies in summer, the heat can deplete soil nutrients quickly.

Feed your calla lilies with a balanced liquid fertilizer every two to three weeks.

This gives them the energy to push out blooms and maintain healthy foliage.

Avoid high-nitrogen fertilizers, as they encourage leaves over flowers.

So, Can You Plant Calla Lilies In The Summer?

Yes, you can plant calla lilies in the summer, and with the right care, they’ll reward you with beautiful, elegant blooms.

You can plant calla lilies in summer as long as you provide warm soil, consistent moisture, and a bit of shade from the harshest sun.

Whether you’re planting calla lilies in summer for the first time or as an experiment, just remember to water deeply and feed regularly.

Now you know that planting calla lilies in summer isn’t just possible, it can be a great way to extend your garden’s beauty into the late season.

Happy planting, and enjoy those gorgeous calla lilies all summer long.