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To grow trumpet lilies, you need to give them full sun, well-draining soil, and a bit of patience, and they will reward you with towering, fragrant blooms.
Trumpet lilies are some of the most majestic flowers you can add to your garden, and growing them isn’t nearly as tricky as you might think.
If you’ve been wondering how to grow trumpet lilies successfully, I’m here to walk you through every step so you can enjoy these showstoppers in your own backyard.
These beauties, also known as Aurelian lilies, can reach heights of four to six feet, and their trumpet-shaped flowers are absolutely unforgettable.
In this post, we’ll cover everything from planting to watering, so you’ll know exactly how to grow trumpet lilies from bulbs to brilliant bloom.
Let’s dig in and get those trumpet lilies thriving.
Why Growing Trumpet Lilies Is Worth It
Getting to grow trumpet lilies is one of the most rewarding gardening projects you can take on.
These lilies are not only tall and dramatic, but they also produce a sweet, heady fragrance that can fill an entire garden.
When you grow trumpet lilies, you’re adding a vertical focal point that works beautifully in mixed borders or as a standalone statement.
The blooms come in shades of white, cream, yellow, pink, and even deep burgundy, so there’s a variety that fits any color scheme.
Plus, they’re perennials, which means once you learn how to grow trumpet lilies, they’ll come back year after year.
1. They’re Low-Maintenance Once Established
If you’re new to gardening, you’ll be happy to know that growing trumpet lilies is pretty straightforward after the initial planting.
These lilies are hardy in USDA zones 5 through 9, so they can handle a wide range of climates.
They don’t need constant fussing, just a consistent watering schedule and a little feeding during the growing season.
Once they’re settled, trumpet lilies are quite resilient and can even tolerate some drought.
2. They Attract Pollinators to Your Garden
When you grow trumpet lilies, you’re not just doing yourself a favor, you’re also helping out the bees and hummingbirds.
The large, open blooms are like landing pads for pollinators, and their sweet scent is irresistible.
This means a garden full of trumpet lilies will be buzzing with life, which is always a good sign for your other plants.
So, growing trumpet lilies is a win-win for both you and the local ecosystem.
How to Grow Trumpet Lilies: The Essential Steps
Now that you’re convinced, let’s get into the nitty-gritty of how to grow trumpet lilies from the ground up.
The most important thing to remember is that trumpet lilies need the right conditions right from the start.
Getting the planting site and timing right will set you up for success, so pay close attention here.
1. Choose the Perfect Spot for Trumpet Lilies
To grow trumpet lilies properly, you need a location that gets at least six to eight hours of direct sunlight each day.
They can tolerate partial shade, but too much shade will result in leggy stems and fewer blooms.
The soil should be rich, slightly acidic to neutral (pH 6.0 to 7.0), and absolutely must drain well.
Trumpet lilies hate sitting in water, so if your soil is heavy clay, consider amending it with compost or sand.
A raised bed is another great option if your native soil tends to stay soggy.
2. Plant the Bulbs at the Right Depth
The golden rule when you grow trumpet lilies is to plant the bulbs deep, about six to eight inches below the soil surface.
Space each bulb about 12 to 18 inches apart so they have room to grow and spread without crowding.
Place the bulb in the hole with the pointed side facing up, and then cover it with soil, firming it gently.
Water thoroughly after planting to help the roots settle in and remove any air pockets.
If you’re planting in fall, the bulbs will establish roots before winter and burst into growth in spring.
3. Water and Feed for Strong Growth
Learning how to grow trumpet lilies also means getting your watering and feeding schedule right.
Keep the soil consistently moist during the growing season, but never let it become waterlogged.
A good rule of thumb is to water deeply once a week, and more often during hot, dry spells.
In early spring, feed your trumpet lilies with a balanced, slow-release fertilizer to kickstart their growth.
When flower buds begin to form, switch to a fertilizer higher in phosphorus to encourage bigger, brighter blooms.
Avoid high-nitrogen fertilizers, as they’ll give you lots of leaves but very few flowers.
4. Support the Tall Stems
Since trumpet lilies can grow so tall, they often need a little help to stay upright, especially in windy areas.
Install a sturdy stake or a plant support ring early in the season, before the stems get too tall.
Drive the stake into the ground a few inches away from the bulb to avoid damaging the roots.
Then, gently tie the stems to the stake as they grow using soft garden twine.
This simple step will keep your trumpet lilies standing proud and prevent them from toppling over.
5. Deadhead and Mulch for Future Blooms
Once the flowers fade, you’ll want to deadhead them to keep the plant looking tidy and to direct energy back into the bulb.
Simply snip off the spent flower heads, but leave the stem and leaves to die back naturally.
This allows the plant to photosynthesize and store energy for next year’s blooms.
In late fall, after the foliage has yellowed, cut the stems down to the ground and apply a layer of mulch.
Mulch helps protect the bulbs from freezing temperatures and keeps the soil moisture even during winter.
Common Mistakes to Avoid When Growing Trumpet Lilies
Even the most experienced gardeners can make a few errors when they first try to grow trumpet lilies.
The good news is that these mistakes are easy to avoid once you know what to watch out for.
1. Planting in Poorly Draining Soil
The number one killer of trumpet lilies is root rot caused by soggy soil.
If you plant them in a spot where water pools after rain, the bulbs will quickly rot underground.
Always test your drainage by digging a hole and filling it with water, if it takes more than a few hours to drain, pick another spot.
When in doubt, mix in plenty of grit or organic matter to improve drainage before planting.
2. Cutting Back Foliage Too Early
Another common mistake is trimming the leaves right after the blooms fade.
While it might look messy, the foliage is essential for trumpet lilies to store energy for next season.
If you cut it too early, you’ll get weak stems and fewer flowers the following year.
Patience is key, so let the leaves yellow and die back naturally before you tidy up.
3. Overcrowding the Bulbs
When you’re excited to grow trumpet lilies, it’s tempting to cram as many bulbs as possible into one spot.
But overcrowding leads to poor air circulation, which can invite fungal diseases like botrytis.
It also means the roots have to compete for water and nutrients, resulting in stunted growth.
Give each bulb enough space to breathe, and you’ll be rewarded with healthier, more vigorous plants.
So, How to Grow Trumpet Lilies Successfully?
To grow trumpet lilies successfully, you need to provide full sun, well-drained soil, and plant the bulbs at the correct depth.
Water them consistently, feed them with the right fertilizer, and don’t forget to stake the tall stems as they grow.
Avoid the common pitfalls like poor drainage and early pruning, and your trumpet lilies will thrive for years.
These towering beauties are more than worth the little effort it takes to get them going.
So follow these steps, be patient, and soon you’ll have a garden full of fragrant, trumpet-shaped flowers that are the envy of the neighborhood.