Photo of Clarkia williamsonii close-up, flower by tomhilton

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Clarkia williamsonii

Also Known As

  • Fort William Fairyfan

Plant type

annual / biennial

size

  • H: 12"
  • W: 12"

planting zones

  • 1-11

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Clarkia williamsonii plant details

Clarkia williamsonii is a broadleaf deciduous annual / biennial with green foliage. In spring and summer lavender flowers emerge. Grows well with sun and regular - low water. Adapts to various soil conditions. Does well in average and well-drained soil.

CHARACTERISTICS OF Clarkia williamsonii

Plant type: annual / biennial
Plant family: onagraceae
Foliage: deciduous green
Mature size: 12 IN wide, 12 IN tall
Flowers: lavender blooms in spring and summer
Uses: border plant, container plant, cottage garden, cutting garden, self-sowing

GROWING CONDITIONS for Clarkia williamsonii

USDA Zones: 1 - 11
Sun exposure: sun
Watering frequency: regular - low
Soil needs: average and well-drained

Nursery contributed plant descriptions

Bold markings color the blooms of this showy native annual in late Spring & early Summer. Some people have described this species as gaudy, but we like a little flash to our flowers, & this species still has its natural grace. The center of the flower is white, & the outer part of the petal is lavender with a deep magenta blotch in the center. The flowers seem to glow from within, & appear well into summer if supplemented with additional water on plants that span at least a foot across, & are under a foot tall. Drainage is key! Clarkia williamsonii does not tolerate clay very well, but would be a great plant to try to naturalize on a rocky incline, & has done beautifully for us at the edge of rock walls in our nursery garden beds. Containers work well, too, of course. Poor soil is fine, & this year’s plants will yield seedlings that will need no additional water to thrive next year! Local all the way from Kern County north to Nevada County.

By: Annie's Annuals & Perennials

Gardening facts about Clarkia williamsonii plant

How to Grow Clarkia williamsonii

  • Sun Exposure

    • sun
  • Water Needs

    • regular - low
  • Soil Needs

    • adaptable
    • average
    • well-drained

Features

  • Foliage Color

    • green
  • Flower Color

    • lavender
  • Flower Season

    • spring
    • summer
  • Foliage Season

    • deciduous
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