Alphabetical Plant Listing

Veronica gentianoides (Gentian Speedwell)

Gentian Speedwell


Veronica gentianoides (Gentian Speedwell) is an herbaceous perennial forming a dense mat of bright glossy green, ovate leaves from a creeping rootstock. In late spring or early summer, the foliage is topped by leafy stems bearing loose racemes, 10 in. long (25 cm), of small, pale blue to almost white flowers adorned with darker veining. Gentian Speedwell is perfect for the front to mid-border and is useful in the rock garden thanks to its mat-forming tendencies.

  • Grows up to 1-2 ft. tall and wide (30-60 cm).
  • Performs best in full sun to part shade, in loamy, moderately fertile, moist, well-drained soils.
  • Perfect choice for beds and borders, garden edging, cottage gardens, rock gardens, or as a groundcover.
  • Easy to grow, this Speedwell requires very little care and is fairly pest and disease-free. Keep an eye out for powdery mildew.
  • Remove spent flowers to encourage compact habit and good flowering in the following year.
  • Propagate by division in autumn or spring.
  • Native to the Caucasus.

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Requirements

Hardiness 4 – 7
Heat Zones 1 – 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Perennials
Plant Family Veronica - Speedwells
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Average
Maintenance Low
Soil Type Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Garden Uses Beds and Borders, Edging, Ground Covers
Garden Styles Gravel and Rock Garden, Informal and Cottage

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 7
Heat Zones 1 – 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Perennials
Plant Family Veronica - Speedwells
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 24" (45cm – 60cm)
Water Needs Average
Maintenance Low
Soil Type Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Garden Uses Beds and Borders, Edging, Ground Covers
Garden Styles Gravel and Rock Garden, Informal and Cottage

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