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Yes, you can plant a lavender tree outside, and it does remarkably well in the right conditions.
If you’ve been eyeing that beautiful, whimsical lavender tree at the nursery and wondering if you can plant a lavender tree outside in your garden, the answer is a resounding yes.
Planting a lavender tree outside is totally doable, but it does require a bit of know-how to keep that topiary looking lush and thriving for years.
You can plant a lavender tree outside as long as you give it full sun, excellent drainage, and a little winter protection if you live in a colder region.
In this post, we’ll dig into why you can plant a lavender tree outside, the best spots to put it, how to care for it in the ground, and what to watch out for when growing a lavender tree outdoors.
Let’s get our hands dirty and look at planting a lavender tree outside.
Why You Can Plant a Lavender Tree Outside
The main reason you can plant a lavender tree outside comes down to the plant’s Mediterranean roots.
Lavender trees, which are simply standard lavender plants trained into a single trunk, are naturally hardy perennials that love the outdoors.
When you plant a lavender tree outside, it gets the two things it craves most: abundant sunlight and natural air circulation.
These factors are nearly impossible to replicate indoors, which is why outdoor lavender tree care tends to be much more successful.
1. Lavender Trees Are Sun Worshipers
You can plant a lavender tree outside, and it will reward you with vigorous growth because it thrives in at least six to eight hours of direct sun daily.
That intense sunlight is what fuels the production of those fragrant essential oils, making your outdoor lavender tree smell even more amazing.
When you plant a lavender tree outside in a shaded spot, it will become leggy and produce fewer blooms, so always choose a bright, open location.
2. Outdoor Airflow Keeps the Tree Healthy
Another reason you can plant a lavender tree outside is that natural breezes help keep the foliage dry.
Lavender trees planted outdoors are less prone to fungal diseases like root rot because the wind evaporates excess moisture quickly.
If you have a lavender tree outside, that constant airflow also strengthens the stems and keeps the woody trunk nice and sturdy.
3. Hardiness Zones Matter for Outdoor Lavender Trees
You can plant a lavender tree outside, but you need to match the variety to your USDA hardiness zone.
English lavender varieties, like ‘Hidcote’ or ‘Munstead’, are the best choice for outdoor lavender tree planting because they tolerate colder winters down to zone 5.
If you live in a hotter, more humid climate, French or Spanish lavender trees planted outside will appreciate the warmth but need extra care with drainage.
So yes, you can plant a lavender tree outside, as long as you pick the right species for your region.
How to Plant a Lavender Tree Outside in the Ground
Planting a lavender tree outside isn’t complicated, especially if you follow a few golden rules for outdoor lavender tree success.
The key is to mimic the rocky, sandy, and dry conditions of the Mediterranean coastline where lavender grows wild.
1. Pick the Perfect Outdoor Spot
When you plant a lavender tree outside, choose a location that gets full sun and has excellent drainage.
Avoid low-lying areas in your yard where water tends to pool after rain, because a lavender tree outside in soggy soil will quickly develop root rot.
A south-facing slope or a spot near a south-facing wall is ideal when you plant a lavender tree outside, as it provides reflected heat and extra protection.
2. Amend the Soil Before Planting
Before you plant a lavender tree outside, dig a hole that is twice as wide as the root ball but no deeper.
Mix the native soil with a generous amount of coarse sand or small gravel to improve drainage dramatically.
Lavender trees planted outside prefer a slightly alkaline soil, so if your soil is acidic, work in a little garden lime to raise the pH.
This step is crucial because you can plant a lavender tree outside all day long, but if the roots sit in heavy clay, the tree will not survive the first season.
3. Position the Tree Correctly
When you plant a lavender tree outside, ensure the top of the root ball sits just slightly above the surrounding soil level.
This little mound helps water run away from the trunk, keeping the crown dry and preventing rot.
Backfill the hole with your amended soil, gently firm it around the roots, and water it in lightly to settle the soil.
Don’t add mulch right up against the trunk, as lavender trees outdoors like their base to stay dry and bare.
Caring for a Lavender Tree Outside All Year
Once you plant a lavender tree outside, the work isn’t over, but the ongoing care is wonderfully low-maintenance.
Your outdoor lavender tree will basically thrive on neglect, meaning you should water sparingly and let the sun do its job.
Here’s how to keep your lavender tree outside happy through every season.
1. Watering Rules for Outdoor Lavender Trees
After you plant a lavender tree outside, water it deeply once a week for the first month to help roots establish.
After that, a lavender tree outside should only be watered every two to three weeks during dry spells.
Overwatering is the number one killer of lavender trees outdoors, so it’s far better to let the soil dry out completely between waterings.
If you’re not sure, stick your finger two inches into the soil, and if it feels dry, then give your lavender tree outside a drink.
2. Pruning Keeps the Tree Shape
A lavender tree outside will naturally try to revert to a bushy shrub, so regular pruning is essential.
You should prune your lavender tree outside in early spring to remove any dead wood and shape the round top.
After the first flush of flowers fades in summer, give your lavender tree outside a light shearing to encourage a second bloom.
Never cut into the old, woody stems on the trunk, as lavender trees outdoors do not regrow from bare wood.
3. Winter Protection for Cold Climates
While you can plant a lavender tree outside in zone 5, those colder winters can still be tough on the roots.
To protect your lavender tree outside from freezing temperatures, cover the root zone with a thick layer of straw or evergreen boughs in late fall.
In very exposed areas, wrap the entire lavender tree in burlap to shield it from harsh winds and ice.
If you planted your lavender tree outside in a pot rather than the ground, consider moving it to an unheated garage for the winter months.
Common Mistakes When You Plant a Lavender Tree Outside
Even though you can plant a lavender tree outside with confidence, there are a few common pitfalls that trip up even seasoned gardeners.
Avoiding these errors will keep your outdoor lavender tree vigorous and flowering profusely.
1. Too Much Fertilizer
When you plant a lavender tree outside, do not fertilize it heavily.
Lavender trees outdoors prefer lean, poor soil, and rich fertilizers will cause soft, floppy growth and fewer fragrant flowers.
A light top dressing of compost in spring is more than enough for a lavender tree outside.
2. Poor Air Circulation
Make sure you plant a lavender tree outside with plenty of space around it, at least three feet from other plants.
Crowding your lavender tree outside with other shrubs will trap humidity and invite pests like spider mites.
Give your outdoor lavender tree room to breathe, and it will stay healthy all season long.
3. Planting at the Wrong Time
The best time to plant a lavender tree outside is in early spring or early fall.
Planting during the heat of summer stresses the tree, and planting in late fall doesn’t give roots enough time to establish before winter.
If you plant a lavender tree outside in spring, it has a full growing season to settle in and get strong.
So, Can You Plant a Lavender Tree Outside?
Yes, you can plant a lavender tree outside, and it’s honestly one of the most rewarding additions to any sunny garden.
You can plant a lavender tree outside in the ground or keep it in a large container on your patio, and both work beautifully.
The trick is remembering that lavender trees outdoors need full sun, sharp drainage, and minimal watering.
When you plant a lavender tree outside with the right variety and in the right spot, it will become a stunning focal point with heavenly scent.
So go ahead and plant a lavender tree outside, your garden will thank you for those gorgeous purple blooms and that calming aroma.
Hope this guide helps you feel confident about planting a lavender tree outside and enjoying it for many years to come.