North America Native Plant

San Gabriel Linanthus

Botanical name: Linanthus concinnus

USDA symbol: LICO2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

San Gabriel Linanthus: A Delicate Native Worth Protecting Meet the San Gabriel linanthus (Linanthus concinnus), a charming little native annual that’s as special as it is delicate. This petite California wildflower might not shout for attention like some of its showier cousins, but it has a quiet elegance that makes ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

San Gabriel Linanthus: A Delicate Native Worth Protecting

Meet the San Gabriel linanthus (Linanthus concinnus), a charming little native annual that’s as special as it is delicate. This petite California wildflower might not shout for attention like some of its showier cousins, but it has a quiet elegance that makes it a treasure for native plant enthusiasts.

Where You’ll Find This California Native

The San Gabriel linanthus is a true California native, calling the Golden State home exclusively. This lovely annual herb is particularly associated with the San Gabriel Mountains region, where it has adapted to the unique Mediterranean climate and growing conditions of Southern California.

A Word About Rarity

Before we dive into growing tips, there’s something important you should know: San Gabriel linanthus has a Global Conservation Status of S3, meaning it’s considered vulnerable. With only 21 to 100 known occurrences and an estimated 3,000 to 10,000 individuals in the wild, this species is at risk. If you’re interested in adding this beauty to your garden, please make sure you source seeds or plants responsibly from reputable native plant nurseries that don’t collect from wild populations.

What Makes It Special

San Gabriel linanthus is what botanists call a forb – essentially a non-woody herbaceous plant. As an annual, it completes its entire life cycle in one growing season, making it a perfect example of nature’s live fast, bloom beautifully philosophy. The plant produces delicate, small flowers that typically range from white to pale pink, creating subtle splashes of color in the landscape.

Why Your Garden (and Local Wildlife) Will Love It

This native annual isn’t just pretty – it’s practical too. Here’s why San Gabriel linanthus deserves a spot in your native plant garden:

  • Supports local ecosystems by providing nectar for native bees and other beneficial insects
  • Requires minimal water once established, making it perfect for drought-conscious gardening
  • Adds authentic California character to native plant landscapes
  • Self-seeds readily, creating natural colonies over time
  • Works beautifully in rock gardens and naturalized areas

Perfect Garden Companions

San Gabriel linanthus thrives in native plant gardens, xeriscape designs, and rock gardens. It’s particularly stunning when planted alongside other California natives like poppies, lupines, and native grasses. The delicate texture and subtle colors make it an excellent choice for creating naturalized meadow-like areas or adding fine detail to drought-tolerant landscapes.

Growing Your Own San Gabriel Linanthus

Growing this California beauty is surprisingly straightforward, though it does have some specific preferences:

Climate and Hardiness

San Gabriel linanthus is best suited for USDA hardiness zones 8-10, thriving in the Mediterranean climate conditions of Southern California. If you live outside this range, you might struggle to provide the specific conditions this plant needs to flourish.

Planting Conditions

This native annual prefers:

  • Well-draining soils (it won’t tolerate soggy conditions)
  • Full sun to partial shade
  • Minimal supplemental watering once established
  • Fall planting for spring blooms

Planting and Care Tips

The best approach with San Gabriel linanthus is to direct seed in fall, mimicking nature’s timing. Scatter seeds in prepared soil and let winter rains do most of the work. Once your plants are established, they’re remarkably low-maintenance – in fact, too much attention (especially water) can actually harm them.

Allow some plants to go to seed naturally, and you’ll likely see new volunteers the following year. This self-seeding habit helps create the natural colonies that make this species so appealing in wild landscapes.

The Bottom Line

San Gabriel linanthus is a special plant for gardeners who appreciate subtle beauty and want to support California’s native ecosystems. While its rarity means we need to be thoughtful about sourcing, growing this delicate annual is a wonderful way to connect with California’s botanical heritage. Just remember: start with responsibly sourced material, provide well-draining conditions, and then step back and let this charming native do what it does best.

Your local pollinators – and future generations of native plant lovers – will thank you for giving this vulnerable beauty a safe place to flourish.

San Gabriel Linanthus

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

Solanales

Family

Polemoniaceae Juss. - Phlox family

Genus

Linanthus Benth. - linanthus

Species

Linanthus concinnus Milliken - San Gabriel linanthus

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