Southern California Plant Spotlight #2: Common Yarrow (Achillea millefolium)
A Tough, Cheerful Perennial That Pollinators Love
By Valerie Peabody
One of my favorite ways to discover new plants is simply by exploring beautiful public spaces. If it’s already growing in your neighborhood park, it might do well in your own backyard! Today I took a walk through Beacon Park in Irvine's Great Park, where the parks have been designed to be enjoyed by residents of all ages, and with consideration of the future of this space. They have walking trails that wind through colorful plantings of California natives, Mediterranean species, and other drought-tolerant plants, and maybe that helps to balance out the lush lawns for soccer games and playing fetch with Fido.
One plant that immediately caught my eye was Common Yarrow (Achillea millefolium). It was planted in generous drifts alongside Deer Grass, creating a soft, natural transition between the walking path and the adjacent lawn. I just love this plant because it looks so delicate with its ferny leaves (the name millefolium roughly means thousand leaves) and dainty clusters of flowers held high above the leaves. The way the flowers are arranged creates a perfect landing pad for butterflies and bees. When I was taking pictures, I saw a lot of different kinds of bees visiting this flower!
Yarrow is one of those plants that is a great companion plant. It’s the supporting actor that makes the stars look even better. While I probably wouldn't plant it as a standalone focal point, it's one of my favorite plants for weaving through a landscape and connecting other plants together. It isn't flashy, but it works incredibly hard, providing months of flowers, supporting beneficial insects, and thriving with relatively little care once established.
Quick Facts
Botanical Name: Achillea millefolium
Common Name: Common Yarrow
Native To: California and parts of North America
Plant Type: Herbaceous perennial
Sun Exposure: Full sun to partial shade
Water Needs: Low once established. In inland Southern California, plants growing in hot, exposed full sun may benefit from occasional supplemental irrigation during extended heat, particularly while becoming established.
Bloom Time: Late spring through summer, with repeat blooms possible into fall if deadheaded
Flower Colors: Common Yarrow is white or white with a pink hue, but cultivars can be found in white, yellow, pink, red, peach, and combinations thereof.
Size: Typically 1–3 feet tall and 2–3 feet wide, with foliage being low and flower stalks rising above.
Why I Like It
Yarrow checks nearly every box I look for in a perennial.
It flowers for months, tolerates drought, attracts an incredible diversity of pollinators, and blends beautifully with ornamental grasses and California native plants. The finely textured foliage provides contrast against bolder leaves, while the flat flower clusters add another layer of visual interest. Even the seedheads are lovely and architectural, and beneficial to birds who eat the seeds.
Because it has such a soft, natural appearance, it fits equally well in cottage gardens, meadow-inspired landscapes, and contemporary water-wise designs.
Is It Right for Every Garden?
Not necessarily.
Common Yarrow works well in many Southern California landscapes, but it is not the right choice for every planting style or location.
If you have kids who visit your garden, they will love touching the soft, ferny leaves, and the flowers grow on taller stalks to bring the blooms closer to kids' eye level.
It performs best in well-drained soil and generally prefers a relaxed, naturalistic setting. It may spread gradually through underground stems, which can be an advantage in meadow-style plantings or larger drifts but less desirable in a tightly controlled formal garden.
Its appearance can also change with the seasons. After flowering, the foliage and stems may look less polished unless the plant is deadheaded or cut back.
As with every landscape, the right plant depends on your goals, available space, sun exposure, irrigation, soil conditions, and maintenance preferences.
The best landscapes are not built from a checklist. They are designed for the people who live there—and for the conditions of the site.
Where I Found It
📍 Beacon Park – Great Park Neighborhoods, Irvine, California
If you're looking for inspiration for your own landscape, Beacon Park is well worth a visit. The walking trails showcase excellent examples of drought-tolerant planting combinations that are both attractive and functional. I often find that visiting well-designed public landscapes is one of the best ways to see how plants mature and work together over time.
🌿 Valerie's Local Garden Recommendation
If you've never visited Beacon Park, it's worth the trip and is just one of Great Park’s many great parks (pun intended). In addition to beautiful planting design, you'll find playgrounds, walking trails, sports courts, and some wonderful mature Jacaranda trees that put on an incredible purple display each spring. It's a great place to gather ideas for your own landscape while perhaps enjoying a picnic in a park.
Thinking About Adding Yarrow to Your Garden?
Whether you're designing a brand-new landscape or refreshing an existing garden, choosing the right plants can provide years of beauty, enjoyment, and seasonal interest.
I'd love to help you select plants that fit your home, your lifestyle, and Southern California's unique climate.
👉 Schedule a free phone consultation here.
🌿 Valerie's Design Notes
Best for:
Pollinator gardens
Water-wise landscapes
Cottage gardens
Mediterranean-style gardens
Meadow plantings
Borders along walkways
Mixing with ornamental grasses like Deer Grass, or Carex pansa
I would avoid it if:
The planting area stays consistently wet.
You prefer a very formal landscape that requires tightly clipped plants.
The soil has poor drainage.
Wildlife Value
This is where Common Yarrow truly shines.
Its broad flower clusters provide easy landing platforms for many beneficial insects, making it one of the busiest plants in the garden during bloom season.
Visitors may include:
🐝 Native bees
🦋 Butterflies
🐝 Honeybees
🪰 Hoverflies
🐞 Lady beetles
These beneficial insects aren’t just fun to watch—they also help pollinate flowers, and some manage other insects we may consider garden pests.
Pro tip: If you have a less formal garden, you can toss the deadheads back into your garden to great benefit! The leaves are high in nitrogen, and as they decompose, they will feed your soil. Also, overwintering bees can use hollow stems like yarrow to survive until spring.
Care Tips
Plant in well-drained soil.
Water regularly until established, then reduce irrigation.
Deadhead spent flowers to encourage additional blooming.
Divide mature clumps every few years if they become crowded.
Avoid over-fertilizing, which can lead to floppy growth.
In Southern California, I've found that Common Yarrow performs well in full sun when it receives a little extra moisture, such as near a lawn or among neighboring plants that provide some afternoon protection.
💚 Valerie's Plant Score
🌼 Beauty ⭐⭐⭐⭐☆
💧 Water Wise ⭐⭐⭐⭐☆
🦋 Pollinator Friendly ⭐⭐⭐⭐⭐
🛠️ Easy Care ⭐⭐⭐⭐⭐
🏡 Small Yard Friendly ⭐⭐⭐⭐⭐
🌿 California Native ⭐⭐⭐⭐☆*
🐕 Pet Friendly ⚠️ Mild stomach upset possible if ingested
👧 Kid Friendly ✅ Yes
Achillea millefolium is native across much of North America, including California, although many nursery selections are cultivated varieties.
Final Thoughts
Common Yarrow may not be the loudest plant in the garden, but it's one of the hardest working.
Its long bloom season, resilience, and incredible value to pollinators make it a plant I find myself recommending again and again. Whether you're designing a new landscape or simply looking to add more life to an existing garden, yarrow is an easy way to bring beauty, biodiversity, and lasting color into your outdoor space.
Keep Exploring
This is Southern California Plant Spotlight #2, the first in an ongoing series highlighting beautiful plants that thrive in our local landscapes.
Follow along as we explore California natives, drought-tolerant favorites, pollinator plants, and exceptional ornamentals growing throughout Southern California.
Can you guess what Plant Spotlight #2 will be?
🌿 Helping Southern California homeowners create beautiful, sustainable landscapes that thrive.
Want to see more photos of this plant in bloom? Follow Valerie Peabody Landscape Design on Facebook and Instagram, where I share additional photos, local plant discoveries, and Southern California gardening inspiration.
