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North America Non-native Plant

Achillea Macrophylla

Achillea macrophylla: A Mysterious Member of the Yarrow Family If you’ve stumbled across the name Achillea macrophylla in your gardening research, you might be scratching your head wondering what exactly this plant is. You’re not alone! This particular species name appears to be quite elusive in the gardening world, and ...

Achillea macrophylla: A Mysterious Member of the Yarrow Family

If you’ve stumbled across the name Achillea macrophylla in your gardening research, you might be scratching your head wondering what exactly this plant is. You’re not alone! This particular species name appears to be quite elusive in the gardening world, and there’s a good reason for that.

What We Know (And Don’t Know)

Achillea macrophylla belongs to the well-known Achillea genus, which includes the popular yarrow species that many gardeners love. However, this specific species name doesn’t appear in most current botanical databases or gardening resources, which raises some important questions about its current taxonomic status.

The name suggests it would be related to other yarrows, which are typically hardy, drought-tolerant perennials known for their feathery foliage and flat-topped flower clusters. But without reliable information about this particular species, we can’t make specific recommendations about its care or characteristics.

The Mystery of Missing Information

When a plant name like Achillea macrophylla appears without supporting information, it could mean several things:

  • The name may be an outdated synonym that’s been reclassified
  • It could be a very rare or localized species with limited documentation
  • The name might be a misidentification or variant spelling
  • It may exist only in specialized botanical collections or research

What Should Gardeners Do?

If you’re looking to add yarrow to your garden, we’d recommend sticking with well-documented Achillea species that have proven track records in cultivation. Some excellent alternatives include:

  • Achillea millefolium (Common Yarrow) – widely native across North America
  • Achillea filipendulina (Fernleaf Yarrow) – popular for dried flower arrangements
  • Native Achillea species specific to your region

The Importance of Accurate Plant Names

This situation highlights why botanical names matter so much in gardening. While common names can vary by region, scientific names should provide precise identification. When that system breaks down – as it seems to have with Achillea macrophylla – it becomes difficult to provide reliable growing advice.

If you’ve encountered this plant name in a specific context, such as a seed catalog or plant list, we’d recommend contacting the source directly for clarification. They may have additional information about what plant they’re actually referring to.

Moving Forward

Rather than taking a chance on an unknown plant, consider exploring the many wonderful, well-documented Achillea species that can bring beauty, pollinator support, and low-maintenance charm to your garden. Native plant societies and local extension offices can help you identify which yarrow species are native to your area and would thrive in your specific growing conditions.

Remember, successful gardening often comes down to choosing the right plant for the right place – and that starts with knowing exactly what plant you’re working with!

Achillea Macrophylla

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Achillea L. - yarrow

Species

Achillea macrophylla L.

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA