What Plants Go With Purple Lavender In A Window Box
Picture this: a charming window box brimming with the fragrant, calming hues of purple lavender. It’s a gardener’s dream, isn’t it?
But then the questions start: what companions will truly thrive alongside this Mediterranean beauty? What plants will complement its iconic color and scent without competing for resources or attention?
If you’ve ever found yourself pondering what plants go with purple lavender in a window box, you’re in the right place! We’re here to unlock the secrets to creating a cohesive, breathtaking, and easy-to-maintain display that will make your window the envy of the neighborhood.
In this comprehensive guide, you’ll discover expert tips on selecting the best companion plants, mastering window box design, and providing the right care to ensure your lavender and its partners flourish. Let’s dig in and bring your window box vision to life!
What's On the Page
- 1 Understanding Lavender’s Needs: The Foundation of Success
- 2 What Plants Go with Purple Lavender in a Window Box: Our Top Picks
- 3 Designing Your Lavender Window Box: A Harmony of Hues and Textures
- 4 Essential Care Tips for a Thriving Lavender Window Box
- 5 Troubleshooting Common Window Box Woes
- 6 Frequently Asked Questions About Lavender Window Box Companions
- 7 Conclusion
Understanding Lavender’s Needs: The Foundation of Success
Before we dive into plant pairings, it’s crucial to understand lavender itself. This aromatic herb, beloved for its soothing fragrance and vibrant purple spikes, hails from the sunny, dry regions of the Mediterranean.
This heritage dictates its specific requirements, which are key to choosing compatible window box neighbors. Think of yourself as a matchmaker, finding plants that share lavender’s love for sun and well-drained soil.
Sunshine and Soil: Lavender’s Non-Negotiables
Lavender is a true sun-worshipper. It needs at least 6-8 hours of direct sunlight per day to produce abundant blooms and maintain its compact, bushy form. Less sun can lead to leggy growth and fewer flowers.
Equally important is excellent drainage. Lavender absolutely despises “wet feet.” In its natural habitat, it grows in rocky, sandy soils where water quickly drains away. For your window box, this means a high-quality potting mix designed for containers, possibly amended with perlite or grit to enhance drainage even further.
Watering Wisdom for Drought-Tolerant Beauties
Once established, lavender is remarkably drought-tolerant. Overwatering is one of the quickest ways to send it to an early grave. Its companion plants should ideally share this preference for drier conditions.
A good rule of thumb is to let the top inch or two of soil dry out completely between waterings. When you do water, do so deeply until it drains from the bottom of the window box, then allow it to dry again.
What Plants Go with Purple Lavender in a Window Box: Our Top Picks
Now for the fun part! When selecting what plants go with purple lavender in a window box, we’re looking for partners that align with its sun and drainage needs, but also offer complementary colors, textures, and forms.
We’ll use the classic “Thriller, Filler, Spiller” method to create a balanced, dynamic display. The thriller adds height and drama, the filler provides volume, and the spiller cascades over the edge.
The Thrillers: Adding Height and Drama
While lavender itself can be a thriller, especially taller varieties like ‘Provence’ or ‘Grosso’, you might want something to stand a bit taller or offer a different bloom shape.
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Salvia (Perennial Sage): Many salvias are perfect companions. They love full sun and good drainage, just like lavender. Varieties like ‘May Night’ or ‘Caradonna’ offer deep blue or purple spikes that echo lavender’s form beautifully.
Pro Tip: Choose salvias with similar bloom times for a continuous color show.
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Gaura (Whirling Butterflies): This delicate, airy perennial produces clouds of pink or white flowers that dance on slender stems. It’s drought-tolerant and provides a wonderful textural contrast to lavender’s more structured form.
Don’t worry—these flowers are perfect for beginners and very forgiving!
- Dwarf Agastache (Hyssop): Also known as hummingbird mint, agastache offers fragrant, spiky blooms in shades of purple, pink, or orange. It’s a pollinator magnet, sun-loving, and enjoys excellent drainage.
The Fillers: Creating Lushness and Volume
Fillers are the workhorses of your window box, providing body and connecting the thrillers and spillers.
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Sedum (Stonecrop): Many low-growing sedum varieties are excellent. They are incredibly drought-tolerant and offer succulent foliage in various shades of green, red, or even variegated. Look for varieties like ‘Angelina’ for chartreuse color or ‘Dragon’s Blood’ for reddish tones.
These hardy plants are a gardener’s secret weapon for low-maintenance beauty.
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Artemisia (Wormwood): With its striking silvery-gray foliage, Artemisia offers a beautiful textural and color contrast to purple lavender. ‘Silver Mound’ or ‘Powis Castle’ are great choices, providing a soft, feathery backdrop.
The silvery leaves will truly make your purple lavender pop!
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Dianthus (Pinks): These charming flowers come in shades of pink, white, and red, often with spicy-clove fragrances. Many varieties are compact, sun-loving, and prefer well-drained soil, making them a delightful filler.
Their delicate blooms add a touch of old-fashioned charm.
- Dusty Miller: Similar to Artemisia, Dusty Miller provides stunning silver-gray foliage. It’s highly heat and drought-tolerant, creating a wonderful contrast that highlights lavender’s purple.
The Spillers: Cascading Beauty
Spillers soften the edges of your window box, creating a natural, overflowing look.
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Trailing Rosemary: This culinary herb is a fantastic choice! It loves sun and dry conditions, and its woody stems will elegantly spill over the side, adding another layer of fragrance and texture.
Imagine reaching out your window to snip some fresh rosemary for dinner!
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Silver Falls Dichondra: Known for its shimmering, coin-shaped silver leaves, this plant creates a stunning waterfall effect. It’s incredibly heat and drought-tolerant, making it a perfect match for lavender.
It truly lives up to its name, creating a cascade of silver!
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Creeping Thyme: A low-growing, mat-forming herb, creeping thyme produces tiny flowers and releases a lovely fragrance when brushed. It thrives in full sun and well-drained soil, spilling beautifully over the edge.
This is a wonderfully practical and pretty choice.
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Calibrachoa (Million Bells): While some might find calibrachoa needs a bit more water than lavender, dwarf, drought-tolerant varieties can work if placed strategically where they get slightly more moisture. They offer a profusion of small, petunia-like flowers in many colors, including yellow, white, and various purples.
Choose varieties known for heat tolerance to best suit your lavender.
Designing Your Lavender Window Box: A Harmony of Hues and Textures
Beyond choosing individual plants, the art of window box design lies in how you arrange them. Think about the overall aesthetic you want to achieve.
Color Palettes: Complementary vs. Monochromatic
With purple lavender as your star, you have several exciting color directions:
- Complementary Colors: Yellows, oranges, and chartreuse greens are opposite purple on the color wheel, creating a vibrant, high-contrast display. Think yellow calibrachoa or bright green sedum.
- Analogous Colors: Blues, pinks, and magentas sit next to purple, offering a soothing, harmonious blend. Blue salvia, pink dianthus, or deep purple petunias would work beautifully.
- Monochromatic with Texture: Stick to various shades of purple, blue, and silver. This creates a sophisticated, calming look, relying on different leaf shapes and plant forms for interest. Artemisia and Silver Falls Dichondra are perfect for this.
Texture Play: Adding Interest Beyond Color
Texture is just as important as color. Lavender has a fine, somewhat fuzzy texture. Pair it with:
- Fine, Airy Textures: Gaura, Creeping Thyme, or fine-leafed ornamental grasses.
- Bold, Succulent Textures: Sedum or other succulents.
- Silvery, Velvety Textures: Artemisia, Dusty Miller, or Silver Falls Dichondra.
The “Thriller, Filler, Spiller” Method for Window Boxes
This method ensures a balanced, professional-looking arrangement:
- Start with your Thriller: Place your tallest plant (e.g., lavender itself, or a taller salvia) in the back or center of the window box, depending on if it’s viewed from one side or all around.
- Add your Fillers: Surround the thriller with your medium-height, mounding plants (e.g., dianthus, sedum, artemisia). These create the bulk of your display.
- Introduce your Spillers: Position trailing plants (e.g., trailing rosemary, dichondra, creeping thyme) along the front edge of the window box, allowing them to cascade gracefully.
Remember to consider the mature size of your plants. Give them enough space to grow without overcrowding, which can lead to poor air circulation and disease.
Essential Care Tips for a Thriving Lavender Window Box
Choosing the right plants is just the beginning. Proper care is paramount to keeping your lavender window box looking its best all season long.
Choosing the Right Window Box and Potting Mix
The container itself plays a vital role. Ensure your window box has ample drainage holes. If it doesn’t, drill a few yourself. Lavender’s aversion to wet feet cannot be overstated!
For potting mix, opt for a high-quality, well-draining container mix. Many gardeners like to amend their soil with perlite, small gravel, or coarse sand (about 10-20% of the total volume) to further improve drainage and aeration, mimicking lavender’s preferred gritty soil.
Watering Techniques: Less is Often More
As mentioned, overwatering is the enemy. Here’s how to get it right:
- Check the Soil: Stick your finger into the soil. If the top 1-2 inches feel dry, it’s time to water.
- Water Deeply: When you do water, soak the soil thoroughly until water drains from the bottom. This encourages deep root growth.
- Avoid Overhead Watering: Water at the base of the plants to keep foliage dry, reducing the risk of fungal diseases.
Pruning for Longevity and Bloom Power
Pruning is essential for keeping lavender bushy, productive, and preventing it from becoming woody and sparse.
- After First Flush: Once the first flush of blooms fades, snip off the spent flower stalks and about an inch of the leafy stem. This encourages a second, smaller flush of blooms.
- Annual Hard Prune: In early spring, once new growth appears, give your lavender a harder prune. Cut back about one-third of the plant, shaping it into a compact mound. Avoid cutting into old, woody stems that have no green leaves, as these rarely regrow.
Pest and Disease Prevention
Lavender is generally quite pest-resistant due to its strong fragrance. However, like any plant in a container, it can face issues:
- Fungal Diseases: Overwatering and poor air circulation can lead to root rot or other fungal issues. Ensure good drainage and spacing.
- Aphids or Spider Mites: Less common, but if seen, a strong spray of water or an insecticidal soap can usually take care of them. Always identify the pest before treating.
Troubleshooting Common Window Box Woes
Even experienced gardeners encounter challenges. Here are a few common issues and how to address them.
Lavender Looking Leggy or Sparse?
If your lavender is stretching and not blooming well, it’s almost certainly not getting enough sun. Evaluate your window box’s exposure. If moving it isn’t an option, consider if lavender is the best plant for that particular spot.
Another culprit could be lack of pruning. Regular trimming keeps it compact and encourages branching.
Companion Plants Struggling to Thrive?
Check the basic needs of all plants. Are they getting enough sun? Is the watering schedule appropriate for everyone? Sometimes, one plant might be a “water hog” while another prefers dry feet, leading to a mismatch.
If a specific companion plant isn’t thriving, it might be due to incompatible soil pH, nutrient deficiencies (consider a balanced, slow-release granular fertilizer once a season, if needed), or simply that it’s not truly suited for window box life with lavender.
Overcoming Drainage Dilemmas
If your window box seems to retain water, despite drainage holes, it could be a few things:
- Potting Mix Compaction: Over time, potting mix can compact, reducing aeration. Loosen the topsoil gently with a hand fork.
- Blocked Drainage Holes: Check that the holes aren’t clogged with soil or roots. You can place a piece of mesh or a coffee filter over the holes before adding soil to prevent this.
- Wrong Potting Mix: If your mix is too heavy (e.g., garden soil, which is a no-no for containers), replace it with a well-draining container blend.
Frequently Asked Questions About Lavender Window Box Companions
Can I plant herbs with lavender in a window box?
Absolutely! Many Mediterranean herbs share lavender’s love for full sun and well-drained soil. Rosemary, thyme, oregano, and sage are excellent choices. They not only look great but also offer practical culinary benefits!
What about annuals versus perennials?
Lavender is a perennial, meaning it will return year after year. You can choose to plant perennial companions (like sedum, salvia, or creeping thyme) for a long-lasting display, or mix in annuals (like certain calibrachoa or dwarf petunia varieties) for seasonal pops of color. If you use annuals, you’ll replace them each spring.
How often should I fertilize my lavender window box?
Lavender is not a heavy feeder and actually prefers lean soil. Too much fertilizer, especially nitrogen, can lead to lush foliage but fewer flowers. If your potting mix is fresh, you likely won’t need to fertilize at all in the first year. In subsequent years, a light application of a balanced, slow-release granular fertilizer in early spring is usually sufficient. Avoid liquid feeds which can promote too much growth too quickly.
Will lavender attract bees to my window?
Yes, lavender is a phenomenal pollinator magnet! Bees, butterflies, and other beneficial insects adore its nectar-rich flowers. This is a wonderful benefit for your garden and local ecosystem, but something to be aware of if you or family members have severe bee allergies and the window box is right next to a frequently used window or door.
Can I grow lavender in a shaded window box?
Unfortunately, no. Lavender truly needs full sun (6-8 hours daily) to thrive. In shade, it will become leggy, produce very few flowers, and be more susceptible to fungal diseases. If your window box location is shady, it’s best to choose plants that are specifically suited for shadier conditions.
Conclusion
Creating a beautiful and thriving lavender window box is a deeply rewarding experience. By understanding lavender’s fundamental needs and carefully selecting companions that share its preferences, you can design a display that is both stunning and sustainable.
Remember to consider the interplay of colors, textures, and forms, and don’t be afraid to experiment! Gardening is an art, and your window box is your canvas. With a little planning and consistent care, your purple lavender and its chosen plant partners will flourish, bringing joy, fragrance, and beauty right to your window.
Now that you know what plants go with purple lavender in a window box, you have all the tools to create a masterpiece. Go forth, green thumb, and grow something truly spectacular!
