Helianthella castanea

Helianthella castanea

Diablo helianthella



  • Perennial found in Bay area
  • On grassy slopes
  • Long narrow spear shaped leaves grow in clumps
  • Bright yellow flowers over 2 inches in diameter
  • Rare, but more occurrences than formally thought
  • Found in Bay hills, Diablo and Hamilton sections

Black Diamond Mines RP, Mt. Diablo, Mt. Diablo south, Mt. Diablo summit, Mt. Diablo upper, Mt. Diablo west


1 gallon, 4 inch, Deepot

bloom season Apr
pollinators Bees
pollinators Butterflies
habitat Chaparral
growth habit Clumping
sun Full Sun
soil Good
bloom season Jun
water Low
bloom season May
soil Moderate
soil Poor
water Very low
dormancy winter
flower color Yellow

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