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San Gabriel flannel bush (Fremontodendron 'San Gabriel')

Fremontodendron 'San Gabriel'

San Gabriel flannel bush

This large evergreen shrub is a hybrid between Fremontodendron californicum and Fremontodendron mexicanum.  It's fast-growing and produces masses of large bright yellow flowers in spring.

San Gabriel flannel bush Growing and Maintenance Tips

The stems of this large shrub are covered in small hairs that can make your skin itch.  Unlike poison oak, this is just a localized reaction but you may want to consider wearing gloves when planting or pruning flannel bush.

Fremontodendron 'San Gabriel' Characteristics


  • California native
  • Evergreen
  • Fast-growing

Flower color

  • Yellow / Chartreuse

Foliage color

  • Green / Blue-green

Growth habit (plant shape)

  • Upright


  • Sunny all day - Coast
  • Morning sun
  • Sunny all day - Inland

Season of interest (flowering)

  • Spring

Season of interest (foliage)

  • Spring
  • Fall
  • Winter
  • Summer

Water requirements

  • None - Low
  • None

Wildlife appeal

  • Attracts beneficial insects
  • Attracts birds
  • Attracts bees

Suggested uses

  • Espalier


  • California

Plants that work well with Fremontodendron 'San Gabriel'

Matilija poppy Matilija poppy (Romneya coulteri)
Island bush poppy Island bush poppy (Dendromecon harfordii)
Big Mexican scarlet sage Big Mexican scarlet sage (Salvia gesneriflora)
Allen Chickering's sage Allen Chickering's sage (Salvia 'Allen Chickering')
California fescue California fescue (Festuca californica)