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You can plant lilies in the summer, but it requires a bit more care than planting them in the spring or fall.
If you’ve ever wondered whether planting lilies in summer will work, the answer is a confident yes, as long as you handle the heat and watering properly.
Summer planting of lilies is totally doable, and many gardeners do it successfully when they miss the spring window.
In this post, we’ll explore why you can plant lilies in the summer, the best techniques to help them thrive, and common mistakes to avoid.
Let’s dig into the details so your summer-planted lilies can bloom beautifully.
Why You Can Plant Lilies in the Summer
Planting lilies in summer might seem risky because of the heat, but lilies are surprisingly resilient bulbs.
Here’s why summer planting works and how to set your lilies up for success.
1. Lilies Are Hardy Bulbs That Adapt Quickly
Lilies are tough, and their bulbs are designed to survive a range of conditions.
When you plant lilies in summer, the bulbs are already dormant or semi-dormant, which means they won’t try to grow leaves immediately.
Instead, they focus on establishing roots in the warm soil.
This root growth is exactly what you want, because it gives the lily a strong foundation before the next growing season.
So even though summer isn’t traditional, the bulbs can handle it just fine.
2. Warm Soil Speeds Up Root Development
The warm summer soil actually helps lily bulbs root faster than in cooler months.
When you plant lilies in summer, the soil temperature is perfect for encouraging quick root growth.
Faster roots mean the lily can anchor itself and start absorbing water and nutrients sooner.
This is a big advantage over spring planting, where cool soil can slow things down.
Just make sure you keep the soil consistently moist, and you’ll see results quickly.
3. You Get Blooms Later in the Season or Next Year
When you plant lilies in summer, you might not get flowers right away, and that’s perfectly okay.
Some varieties will still push out a late bloom if they’re planted early enough in the summer.
But for the most part, summer-planted lilies use this time to grow strong roots and store energy.
This means you’ll get a spectacular show of blooms the following year, often even better than spring-planted ones.
So patience pays off when you plant lilies in the summer months.
4. The Bulbs Are Widely Available in Summer
One of the best reasons to plant lilies in summer is that garden centers have full stock during this season.
You’ll find a huge variety of lily bulbs, from Asiatic to Oriental to trumpet lilies, all ready for planting.
This gives you more choices than in spring, when stock can be limited.
So if you see a lily variety you love in summer, grab it and plant it right away.
That’s a practical reason why many gardeners choose to plant lilies in the summer.
Best Techniques for Planting Lilies in Summer
If you’re going to plant lilies in summer, you need to follow some specific steps to keep them happy.
The heat can be brutal on new bulbs, so here’s how to give yours the best chance.
1. Choose the Right Planting Spot
Lilies love full sun, but summer sun can be intense, especially in hotter climates.
When you plant lilies in summer, try to find a spot with morning sun and afternoon shade.
This protects the bulbs from the harshest heat while still giving them the light they need.
If you only have full sun, that’s fine, just mulch heavily to keep the soil cool.
The right location can make a huge difference when you plant lilies in summer.
2. Water Deeply and Consistently
Watering is the most critical part of planting lilies in summer.
The soil should stay evenly moist, but never waterlogged, because bulbs can rot.
Water deeply right after planting, then keep up a steady schedule of watering every few days.
During heat waves, you might need to water daily to prevent the soil from drying out.
Remember, the goal is to keep the roots cool and hydrated while they establish.
3. Add a Layer of Mulch
Mulch is your best friend when you plant lilies in summer.
A thick layer of organic mulch like straw, bark, or shredded leaves helps insulate the soil.
This keeps the ground temperature lower, which is crucial for lily bulbs in summer heat.
Mulch also locks in moisture, so you’ll need to water less frequently.
Spread about 2 to 3 inches of mulch around the planting area after you plant lilies in summer.
4. Plant at the Right Depth
Depth matters a lot when you plant lilies in summer, just as it does in other seasons.
Plant the bulbs about 6 to 8 inches deep, measuring from the base of the bulb to the soil surface.
This deeper planting helps protect the bulb from temperature swings.
It also gives the stems good support as they grow.
If you plant lilies in summer, make sure the soil is loose and well-draining at that depth.
Common Mistakes to Avoid When Planting Lilies in Summer
Even though you can plant lilies in summer, there are pitfalls that can ruin your efforts.
Avoid these mistakes to keep your lilies healthy and thriving.
1. Not Watering Enough
The biggest mistake is letting the soil dry out completely after you plant lilies in summer.
Dry soil stresses the bulbs and can cause them to wither before they root.
Always check the soil moisture with your finger and water if the top inch feels dry.
Consistent moisture is non-negotiable for summer-planted lilies.
2. Planting in Waterlogged Soil
On the flip side, overwatering can drown your lily bulbs.
If the soil stays soggy, the bulbs can rot quickly, especially in summer heat.
Make sure your planting site has excellent drainage, or add compost to improve it.
Balance is key, moist but not soaked is the goal when you plant lilies in summer.
3. Storing Bulbs Too Long Before Planting
When you buy lily bulbs in summer, or if you’re planting lilies in summer, don’t let them sit around.
Bulbs can dry out or rot if they’re left in a bag for weeks.
Plant them as soon as possible after purchase, ideally within a few days.
If you must store them, keep them in a cool, dry place with some airflow.
Fresh bulbs are always better, especially for summer planting.
4. Forgetting to Fertilize
Lilies need nutrients to get established, even in summer.
Apply a slow-release fertilizer low in nitrogen at planting time.
Avoid high-nitrogen fertilizers, which push leafy growth at the expense of roots.
A balanced fertilizer helps your lilies build strong roots when you plant them in summer.
You can also add a bit of bone meal for extra phosphorus, which supports root and flower development.
So, Can You Plant Lilies in the Summer?
Yes, you absolutely can plant lilies in the summer, and it’s a smart move for many gardeners.
Planting lilies in summer works because the bulbs are hardy, the warm soil encourages root growth, and you have plenty of variety available.
Just remember to water consistently, mulch well, and avoid waterlogged soil.
By following the techniques we covered, your summer-planted lilies will establish quickly and reward you with gorgeous blooms.
So if summer is your only option, don’t hesitate to plant lilies in the summer and watch them thrive.
Your garden will thank you for it next season.