North America Native Plant

Redflower Buckwheat

Botanical name: Eriogonum grande var. grande

USDA symbol: ERGRG5

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum latifolium Sm. ssp. grande (Greene) S. Stokes (ERLAG2)   

Redflower Buckwheat: A Rare California Coastal Treasure for Your Native Garden If you’re looking to add a touch of California’s wild coastal beauty to your garden, redflower buckwheat (Eriogonum grande var. grande) might just be the perfect choice. This charming native shrub brings both ecological value and striking seasonal beauty ...

Rare plant alert!

Region: Conservation status by state

Status: S3T3: 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 ⚘ Subspecies or variety is 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. ⚘

Redflower Buckwheat: A Rare California Coastal Treasure for Your Native Garden

If you’re looking to add a touch of California’s wild coastal beauty to your garden, redflower buckwheat (Eriogonum grande var. grande) might just be the perfect choice. This charming native shrub brings both ecological value and striking seasonal beauty to drought-tolerant landscapes, though its rarity makes it a plant that deserves special consideration.

What Makes Redflower Buckwheat Special

Redflower buckwheat is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet in height. What sets this plant apart is its remarkable flower display – dense clusters of small blooms that start white to pinkish and gradually transform to a beautiful rust-red color as they age, giving the plant its common name. The silvery-green foliage provides an attractive backdrop year-round, making this shrub a four-season performer.

Native Range and Rarity Status

This buckwheat variety is native exclusively to California, where it naturally occurs along coastal areas, particularly on the Channel Islands and mainland coastal bluffs. However, there’s an important consideration for potential growers: redflower buckwheat has a Global Conservation Status of S3T3, indicating it faces some conservation concerns in the wild.

Important Note: Due to its rarity status, if you choose to grow redflower buckwheat, please ensure you source plants or seeds from reputable native plant nurseries that propagate their stock responsibly rather than wild-collecting.

Garden Design and Landscape Role

Redflower buckwheat shines in several garden settings:

  • Coastal and Mediterranean-style gardens
  • Native plant and wildlife gardens
  • Rock gardens and xeriscapes
  • Drought-tolerant landscape borders

This shrub works wonderfully as a specimen plant or can be grouped for dramatic effect. Its natural salt tolerance makes it particularly valuable for seaside properties, while its drought tolerance suits it perfectly for water-wise gardening.

Pollinator and Wildlife Benefits

One of the biggest reasons to consider redflower buckwheat is its value to local wildlife. The abundant, nectar-rich flowers are magnets for butterflies, native bees, and other beneficial insects. This makes it an excellent choice for gardeners looking to support local ecosystems and create pollinator-friendly spaces.

Growing Conditions and Care

Redflower buckwheat thrives in USDA hardiness zones 9-11, making it suitable for warmer regions. Here’s what this California native needs to flourish:

Optimal Growing Conditions:

  • Full sun exposure
  • Well-draining soils (essential for preventing root rot)
  • Minimal water once established
  • Salt-tolerant, perfect for coastal conditions

Planting and Care Tips:

  • Plant in fall for best establishment
  • Water regularly during the first year, then reduce significantly
  • Avoid overwatering – this plant prefers lean, dry conditions
  • Light pruning after flowering can help maintain shape
  • No fertilization needed in most soils

Is Redflower Buckwheat Right for Your Garden?

This native shrub is an excellent choice if you:

  • Live in zones 9-11 with access to responsibly sourced plants
  • Want to support native wildlife and pollinators
  • Prefer low-maintenance, drought-tolerant plants
  • Appreciate seasonal color changes and unique flower displays
  • Are creating a coastal or Mediterranean-style garden

However, redflower buckwheat might not be suitable if you have heavy, poorly draining soils, live in areas with high humidity, or prefer plants that look lush with regular watering.

The Bottom Line

Redflower buckwheat offers gardeners a chance to grow a truly special piece of California’s natural heritage. While its rarity status means we should be thoughtful about sourcing, this remarkable shrub rewards responsible gardeners with stunning seasonal displays, minimal maintenance needs, and significant ecological benefits. Just remember – when growing rare natives, we’re not just gardening; we’re participating in conservation.

Redflower Buckwheat

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Eriogonum Michx. - buckwheat

Species

Eriogonum grande Greene - redflower buckwheat

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