North America Non-native Plant

Alyssum Serpyllifolium

Botanical name: Alyssum serpyllifolium

USDA symbol: ALSE8

Native status: Not native but doesn't reproduce and persist in the wild

Alyssum serpyllifolium: A Mysterious Plant with Limited Information If you’ve stumbled across the name Alyssum serpyllifolium in your gardening research, you might be scratching your head trying to find reliable information about this elusive plant. You’re not alone! This particular species presents quite the botanical mystery, and there’s a good ...

Alyssum serpyllifolium: A Mysterious Plant with Limited Information

If you’ve stumbled across the name Alyssum serpyllifolium in your gardening research, you might be scratching your head trying to find reliable information about this elusive plant. You’re not alone! This particular species presents quite the botanical mystery, and there’s a good reason why detailed growing guides are hard to come by.

The Challenge with Alyssum serpyllifolium

Here’s the thing about Alyssum serpyllifolium – it’s either extremely rare, potentially misidentified, or possibly represents an outdated taxonomic name that’s no longer in current use. The botanical world is constantly evolving, and sometimes plant names change as our understanding of plant relationships improves. This makes it incredibly difficult to provide specific growing advice or even confirm whether this plant is readily available to gardeners.

What We Do Know

The genus Alyssum belongs to the mustard family (Brassicaceae) and typically includes small, flowering plants known for their clusters of tiny, often fragrant blooms. Most Alyssum species are native to the Mediterranean region and surrounding areas. However, without reliable documentation specifically for A. serpyllifolium, we can’t make assumptions about its particular characteristics or growing requirements.

Better Alternatives for Your Garden

Instead of chasing after this botanical enigma, consider these well-documented and readily available Alyssum species that will actually thrive in your garden:

  • Sweet Alyssum (Lobularia maritima) – Though technically no longer in the Alyssum genus, this popular annual produces carpets of tiny white, pink, or purple flowers
  • Golden Alyssum (Aurinia saxatilis) – A perennial rock garden favorite with bright yellow spring blooms
  • Mountain Alyssum (Alyssum montanum) – A true Alyssum species perfect for rock gardens and dry slopes

The Importance of Accurate Plant Identification

This situation highlights why proper plant identification is so crucial for successful gardening. When you can’t find consistent information about a plant, it’s often better to choose well-documented alternatives that you know will perform well in your specific growing conditions.

What to Do If You Think You Have This Plant

If you believe you have Alyssum serpyllifolium growing in your garden or have seeds labeled as such, consider having it properly identified by a local botanist, extension office, or university herbarium. They can help determine what you actually have and provide appropriate care guidance.

Sometimes the most interesting garden discoveries come from plants that keep us guessing, but for reliable results, it’s usually best to stick with species that have proven track records and plenty of growing information available.

Alyssum Serpyllifolium

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Alyssum L. - madwort

Species

Alyssum serpyllifolium Desf.

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