North America Native Plant

Sticky Chinese Houses

Botanical name: Collinsia tinctoria

USDA symbol: COTI

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Sticky Chinese Houses: A Charming California Native Worth Growing If you’re looking to add a touch of delicate beauty to your California native garden, let me introduce you to sticky Chinese houses (Collinsia tinctoria). This charming little annual might have an unusual name, but it’s a true gem for gardeners ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Sticky Chinese Houses: A Charming California Native Worth Growing

If you’re looking to add a touch of delicate beauty to your California native garden, let me introduce you to sticky Chinese houses (Collinsia tinctoria). This charming little annual might have an unusual name, but it’s a true gem for gardeners who appreciate the subtle elegance of native wildflowers.

What Makes Sticky Chinese Houses Special?

Sticky Chinese houses is a native California annual that belongs to the plantain family. As a forb (that’s just a fancy way of saying it’s a non-woody flowering plant), it brings a soft, naturalized look to any garden space. The sticky part of its name comes from its somewhat tacky stems and leaves, while Chinese houses refers to the tiered appearance of its small, tubular flowers.

This delightful native is found exclusively in California, making it a true Golden State original. Its flowers typically display lovely shades of purple to blue, creating gentle splashes of color that complement rather than compete with showier garden stars.

Why Consider Growing Sticky Chinese Houses?

There are several compelling reasons to include this native beauty in your landscape:

  • True California native: Supporting local ecosystems by growing plants that evolved here
  • Pollinator friendly: The small tubular flowers are perfect for native bees and other beneficial insects
  • Water-wise: Once established, it’s quite drought tolerant
  • Naturalized appeal: Creates that coveted wild look in native plant gardens
  • Low maintenance: As an annual, it completes its life cycle without fuss

Important Conservation Note

Before we dive into growing tips, there’s something important to know: sticky Chinese houses has a conservation status that suggests it may be uncommon in the wild. If you’re interested in growing this plant, please make sure to source seeds or plants from reputable native plant nurseries that practice responsible collection methods. Never collect from wild populations.

Where Does Sticky Chinese Houses Thrive?

This adaptable native works well in several garden settings:

  • Native plant gardens: Perfect for authentic California landscapes
  • Naturalized areas: Great for creating meadow-like spaces
  • Drought-tolerant gardens: Fits beautifully with other water-wise plants
  • Wildflower mixes: Adds subtle color to diverse plantings

The plant typically grows in USDA hardiness zones 8-10, which covers most of California’s diverse climate regions. It’s classified as facultative upland, meaning it usually prefers non-wetland conditions but can tolerate some moisture.

Growing Sticky Chinese Houses Successfully

Growing this native annual is refreshingly straightforward:

Soil Requirements: Well-draining soil is key. It’s not particularly fussy about soil type, but good drainage prevents root problems.

Light Needs: Partial shade to full sun works well, though some afternoon shade in hot inland areas can be beneficial.

Water Requirements: Moderate water during germination and establishment, then quite drought tolerant. Remember, this is a California native adapted to our Mediterranean climate!

Planting Tips: Direct seed in fall or early spring when temperatures are cool. Scatter seeds where you want them to grow, as they don’t transplant well once established.

Care and Maintenance

One of the best things about sticky Chinese houses is how little fuss it requires:

  • Water regularly until established, then reduce watering
  • No fertilizer needed – it’s adapted to California’s naturally lean soils
  • Allow plants to complete their life cycle and drop seeds for next year’s display
  • Deadheading isn’t necessary unless you want to prevent self-seeding

The Bottom Line

Sticky Chinese houses may be small in stature, but it’s big on charm and ecological value. This California native offers gardeners a chance to support local wildlife while enjoying delicate, understated beauty. Just remember to source it responsibly from reputable native plant suppliers, and you’ll be rewarded with a lovely addition to your water-wise, wildlife-friendly garden.

Whether you’re creating a dedicated native plant garden or simply want to add some authentic California character to your landscape, sticky Chinese houses deserves a spot in your planting plans. Sometimes the most rewarding garden plants are the quiet, unassuming ones that work behind the scenes to create natural beauty.

Sticky Chinese Houses

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Collinsia Nutt. - blue eyed Mary

Species

Collinsia tinctoria Hartw. ex Benth. - sticky Chinese houses

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