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Lavender and heather do grow well together when you match the right varieties and growing conditions.
These two garden favorites share a love for well-draining soil and sunny spots, which makes them natural partners in many landscapes.
It’s true that lavender and heather can struggle if you ignore their specific needs, but with a little planning, they form a stunning, low-maintenance duo.
In this post, we’ll explore how lavender and heather grow well together, what conditions they both need, and how to avoid common pitfalls.
Let’s dig into the details so you can enjoy the best of both plants in your garden.
Why Lavender And Heather Grow Well Together
Lavender and heather grow well together primarily because they both thrive in poor, sandy, or gritty soils that many other plants can’t tolerate.
Neither plant wants rich, heavy, or overly moist ground, and that shared preference creates a perfect match for a rock garden or a sloped border.
Both lavender and heather also need full sun to perform at their best, which means they won’t compete for light the way some pairs might.
Let’s break down the key reasons why lavender and heather grow well together in more detail.
1. They Share Similar Soil Preferences
The most important factor in whether lavender and heather grow well together is soil drainage.
Lavender demands alkaline to neutral soil with sharp drainage, and it will rot quickly in soggy conditions.
Heather, on the other hand, prefers acidic soil, but many varieties like heathers (Calluna) and heaths (Erica) are surprisingly adaptable if drainage is excellent.
The trick is to plant them in a raised bed or a slope where water never pools, and to amend the soil with grit or coarse sand.
If you can keep the roots dry and airy, lavender and heather grow well together despite their slight pH differences.
2. They Both Love Full Sun
Another reason lavender and heather grow well together is their identical appetite for sunshine.
These plants need at least six to eight hours of direct sunlight each day to bloom profusely and stay compact.
When you plant lavender and heather side by side in an open, south-facing spot, they’ll both reward you with dense foliage and vibrant flowers.
In shady spots, however, lavender gets leggy and heather becomes sparse, so sun exposure is non-negotiable.
3. Their Root Systems Don’t Compete Aggressively
Lavender has a deep taproot while heather has a fibrous, shallow root system, and this difference means they don’t fight for the same water and nutrients.
Because they occupy different soil layers, lavender and heather grow well together without strangling each other underground.
This complementary root structure allows both plants to establish themselves happily within the same bed.
Just give each plant enough space, about 18 to 24 inches apart, so air circulates freely and roots have room to spread.
How To Plant Lavender And Heather Together Successfully
Now that you know why lavender and heather grow well together, it’s time to talk about the practical steps for planting them as companions.
Preparation is everything with these two, and getting the soil right from the start will save you headaches later.
Follow these guidelines to give your lavender and heather the best possible start in the same garden bed.
1. Improve Drainage Before You Plant
Before you put lavender and heather in the ground, dig in plenty of horticultural grit or perlite to a depth of at least 12 inches.
If your soil is heavy clay, consider building a raised mound or using a large container instead of planting directly in the ground.
This extra effort ensures that lavender and heather grow well together because their roots will never sit in standing water.
A simple test is to dig a hole, fill it with water, and see if it drains within 30 minutes.
If the water lingers, you need more grit or a different planting site.
2. Adjust The PH With Care
Lavender prefers a pH between 6.5 and 7.5, while heather prefers a pH between 4.5 and 6.0.
This difference might sound like a dealbreaker, but you can still make lavender and heather grow well together by choosing the right heather type.
Summer heathers (Calluna vulgaris) are more tolerant of neutral soils, while winter heaths (Erica carnea) actually accept alkaline conditions quite well.
If you stick with Erica carnea varieties like ‘Springwood White’ or ‘King George,’ they’ll happily coexist with lavender in the same slightly alkaline soil.
3. Water Sparingly After Establishment
Both lavender and heather prefer dry conditions once their roots are established, so avoid frequent watering.
Water them deeply only during extended droughts, and never allow the soil to stay moist overnight.
Drip irrigation is a great option because it delivers water directly to the roots without wetting the foliage.
This careful watering routine is another key to making lavender and heather grow well together over the long term.
Potential Challenges When Growing Lavender And Heather Together
While lavender and heather grow well together in most respects, there are a few challenges you should watch for.
Being aware of these issues will help you keep both plants healthy and thriving in the same space.
1. Acidic Soil Can Harm Lavender
If you plant heather in highly acidic soil, that same acidity can eventually damage lavender’s roots and cause yellowing leaves.
To avoid this problem, focus on heather varieties that tolerate neutral or alkaline conditions as mentioned above.
You can also add a small handful of garden lime around the lavender’s base each spring to keep its local pH higher.
This way, lavender and heather grow well together without either plant sacrificing its health.
2. Pruning Schedules Are Different
Lavender needs a hard prune in late summer or early spring to prevent woody, bare stems from forming.
Heather also needs annual trimming, but the timing depends on whether it blooms in summer or winter.
If you’re not careful, you might accidentally cut off next year’s flower buds on heather while pruning lavender.
To keep things simple, prune lavender in spring and heather right after its flowering period ends.
With a consistent schedule, lavender and heather grow well together year after year with minimal fuss.
3. Soil Moisture Imbalance
Heather appreciates slightly more consistent moisture than lavender, especially during its first year of establishment.
This can create a tricky balancing act when you want lavender and heather grow well together in the same bed.
The solution is to water the heather individually during dry spells while letting the lavender stay bone dry.
Mulching around the heather with pine needles or bark chips helps retain moisture without affecting the lavender nearby.
Best Companion Varieties For A Lavender And Heather Garden
Choosing the right cultivars can make all the difference in how well lavender and heather grow well together.
Some varieties are simply more forgiving of shared conditions than others, so pick yours wisely.
1. Lavender Varieties That Work Best
English lavender (Lavandula angustifolia) is the most reliable choice for growing alongside heather because it tolerates cooler summers.
Varieties like ‘Hidcote’ and ‘Munstead’ are compact, hardy, and won’t overwhelm their heather neighbors.
French or Spanish lavender can also work, but they need even sharper drainage and warmer winters.
2. Heather Varieties That Work Best
As we touched on, winter heaths (Erica carnea) are the champion companions for lavender.
They bloom in late winter and early spring when lavender is still dormant, creating a lovely succession of color.
Avoid most Calluna heathers if your soil is neutral, but if you do plant them, incorporate extra peat-free ericaceous compost just around their roots.
So, Do Lavender And Heather Grow Well Together?
Lavender and heather do grow well together when you choose the right varieties, provide excellent drainage, and meet their sun requirements.
The short answer is yes, they can be wonderful companions in a rock garden, along a sunny slope, or in a mixed border.
Just remember to pick alkaline-tolerant heathers like Erica carnea and avoid letting the soil become waterlogged.
With a little attention to planting depth and spacing, you can enjoy the silvery foliage of lavender next to the rich greens of heather all season long.
We hope this guide has shown you that lavender and heather grow well together with surprisingly little effort.
So go ahead and combine these two tough, beautiful plants for a garden that looks great even in poor soil.