General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F)
Maximum recommended zone: Zone 10b
Plant Height: 2 to 10 feet
Leaves: Other: Pubescent, gray-green to bright white
Fruit: Edible to birds
Flowers: Showy
Flower Color: Purple
Red
Flower Time: Spring
Late spring or early summer
Summer
Underground structures: Taproot
Wildlife Attractant: Bees
Birds
Butterflies
Hummingbirds
Resistances: Deer Resistant
Drought tolerant
Propagation: Seeds: Self fertile
Pollinators: Self
Beetles
Moths and Butterflies
Flies
Bees
Miscellaneous: Tolerates poor soil
With thorns/spines/prickles/teeth

Image
Common names
  • California Thistle
  • Cobweb Thistle
  • Cobwebby Thistle

Photo Gallery

Photo courtesy of Annie's Annuals and Perennials
Location: Santa Monica Mountains National Recreation Area, California
Date: 2012-04-30

Photo courtesy of Annie's Annuals and Perennials

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