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You can grow lavender in a mason jar, and it’s one of the easiest ways to enjoy this fragrant herb right on your windowsill.
The mason jar gives you a charming, rustic container that fits almost anywhere, while lavender rewards you with beautiful purple blooms and that calming scent everyone loves.
Whether you’re a seasoned gardener or a total beginner, growing lavender in a mason jar is a fun project that takes just minutes to set up.
In this post, we’ll walk through exactly how to grow lavender in a mason jar, from picking the right variety to keeping it thriving long-term.
Let’s dig in.
How to Grow Lavender in a Mason Jar
Growing lavender in a mason jar starts with understanding what lavender actually needs to survive.
Lavender is a Mediterranean plant, which means it craves sunlight, warmth, and fast-draining soil.
The good news is that a mason jar can work beautifully if you set it up the right way, so here’s how to grow lavender in a mason jar successfully.
1. Choose the Right Lavender Variety
Not all lavender grows well in a mason jar, so pick a compact variety like English lavender (Lavandula angustifolia) or dwarf French lavender.
These types stay smaller and handle container life far better than the big sprawling varieties.
If you want to grow lavender in a mason jar indoors, ‘Hidcote’ and ‘Munstead’ are two reliable choices that stay tidy and bloom well.
2. Use a Mason Jar With Drainage
A standard mason jar has no drainage holes, and lavender absolutely hates soggy roots.
You can grow lavender in a mason jar without drilling by adding a thick layer of pebbles at the bottom, but honestly, drilling a few holes is the safer route.
Use a glass drill bit, go slow, and keep the area wet while you work.
That single step makes growing lavender in a mason jar way easier because excess water can finally escape.
3. Mix Fast-Draining Soil
Regular potting soil holds too much moisture for lavender, so blend it with perlite or coarse sand.
A good ratio is two parts potting mix to one part perlite, which gives you that gritty, airy texture lavender roots love.
When you grow lavender in a mason jar, this soil mix is honestly the difference between life and death for your plant.
Fill the jar about two-thirds full, leaving room for the root ball and a little top space for watering.
4. Plant Your Lavender Correctly
If you’re starting from seeds, sprinkle them on the surface and press gently, since lavender seeds need light to germinate.
If you’re using a small nursery plant, which is much faster, center it in the jar and backfill with your soil mix.
Tamp the soil down lightly so the plant stands upright, then water just enough to settle everything in place.
Best Conditions to Grow Lavender in a Mason Jar
Once your lavender is planted, the next step is giving it the conditions it needs to actually thrive rather than just survive.
Get these basics right, and growing lavender in a mason jar becomes almost effortless.
1. Give It Plenty of Sunlight
Lavender needs at least six to eight hours of direct sun every day.
A south-facing windowsill is ideal if you’re growing lavender in a mason jar indoors.
If natural light is limited, a small grow light works wonders and keeps your plant from getting leggy.
2. Water Sparingly
Overwatering is the number one killer of lavender in containers.
Let the top inch or two of soil dry out completely before you water again.
When you do water, soak the soil until a little runs out the drainage holes, then leave it alone.
3. Keep It Warm and Dry
Lavender loves warm, dry air and struggles in humid, stuffy rooms.
Keep your mason jar away from bathrooms and kitchens where moisture lingers.
Good airflow around the plant also helps prevent mildew and root rot.
4. Prune Regularly
Trim spent blooms to encourage more flowers and keep the plant bushy.
Light pruning also stops lavender from getting woody and leggy over time.
Just never cut back into the old, leafless wood, since it rarely regrows.
Common Mistakes When You Grow Lavender in a Mason Jar
Even with the best intentions, a few common slip-ups can ruin your chances of success.
Avoid these, and your lavender will thank you.
1. Skipping Drainage
A mason jar with no holes turns into a swamp, and lavender roots rot fast in standing water.
Always add drainage, whether that’s holes, pebbles, or both.
2. Using Heavy Soil
Dense, moisture-retaining soil is a death sentence for lavender.
Always lighten it up with perlite or sand before you plant.
3. Overwatering
When in doubt, don’t water.
Lavender would rather be a little thirsty than drowning.
4. Too Little Light
Shade makes lavender weak, pale, and flowerless.
Give it sun, or give it a grow light.
So, Can You Grow Lavender in a Mason Jar?
You can grow lavender in a mason jar, and with the right variety, drainage, soil, and sunlight, it will thrive beautifully.
Just remember that lavender hates wet feet, so drainage and sparse watering are non-negotiable.
Give it sun, warmth, and a little patience, and growing lavender in a mason jar will reward you with gorgeous blooms and that amazing scent all season long.
Happy planting.