Botanical Name: Geranium x 'Johnson's Blue'
Common Name: Johnson's Blue Cranesbill  
Plant photo of: Geranium x 'Johnson's Blue'
Previous Photo     Next Photo

Water Saving Tip:

Change spray sprinklers to low-flow bubbler or drip systems. Shrubs and trees are ideal candidates for this type of irrigation because the water is applied directly to the root zones.

  • Anatomy

  • Culture

  • Design

Plant Type

Ground cover, Perennial


Height Range



Flower Color

Blue, Lavender


Flower Season

Spring, Summer


Leaf Color



Bark Color



Fruit Color



Fruit Season



Full, Half



Low, Medium


Growth Rate



Soil Type

Sandy, Clay, Loam, Rocky, Unparticular


Soil Condition

Average, Rich, Poor, Well-drained, Dry


Soil pH

Neutral, Basic


Adverse Factors


Design Styles

English Cottage, Meadow, Mediterranean, Ranch, Spanish, Woodland


Accenting Features

Fall Color, Showy Flowers


Seasonal Interest

Spring, Summer, Fall


Location Uses

Entry, Perennial Border, Shrub Border, Foundation, Parking Strip, Walls / Fences, Walkways


Special Uses

Mass Planting, Small Spaces


Attracts Wildlife


Information by: Stephanie Duer
  • Description

  • Notes

Johnson Blue geranium is a mounding, creeping, weaving perennial that grows 15 to 18 inches tall and 2 to 3 feet wide. Foliage is deeply lobed, nearly segmented, and is soft green and slightly hairy. Fall leaf color is crimson to purple. Its flowers, while not true blue, are a lovely periwinkle blue with a violet eye, five-petaled, and seem to bloom from late spring to fall. It has a tendency to weave in and around other perennials creating a lovely ground cover. Use in borders, rock gardens, or at the feet of taller shrubs and ornamental grasses.
Grow in well drained soil of nearly any type, in full sun to part shade. It can be sheared back after flowering to give it a tidier appearance, but it isn't necessary. The best time to cut back the foliage is in late winter to early spring, before new foliage emerges. Perennial geraniums, the true geranium, are not related to the fun-loving, annual plant commonly called "geranium" - those are pelargoniums.