Alphabetical Plant Listing

Diascia rigescens (Stiff Twinspur)

Stiff Twinspur, Bride's Saddle


Diascia rigescens (Stiff Twinspur) is a spreading semi-evergreen perennial of sprawling habit, forming a mat of light green, heart-shaped leaves and boasting erect spikes of two-spurred, salmon-pink flowers. Blooming profusely throughout the summer into fall, the blossoms are borne on stiff, four-angled stems that grow from the crown. Easy to grow, with a long season of interest, Diascia rigescens is a charming plant for the front of a mixed border, a rocky bank, a container or trailing down a rock wall.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society
  • Grows up to 8-10 in. tall (20-25 cm) and 10-12 in. wide (25-30 cm).
  • Performs best in full sun in fertile, moist, well-drained soils..
  • A welcomed addition to beds and borders, city gardens, cottage gardens, rock gardens or containers. Great for edging too.
  • Generally disease free. Keep an eye out for slugs and snails.
  • Deadhead to promote new blooms. Established plants can be clipped back if they get straggly during the season. Pruning will promote new growth and a fresh crop of flowers.
  • Propagate by seed sown as soon as ripe or in early spring or propagate by taking softwood cuttings in summer.
  • Native to South Africa.

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Requirements

Hardiness 7 – 9
Heat Zones 6 – 9
Climate Zones 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 8" – 10" (20cm – 25cm)
Spread 10" – 1' (25cm – 30cm)
Spacing 12" (30cm)
Water Needs Average
Maintenance Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Semi-Evergreen
Garden Uses Beds and Borders, Edging
Garden Styles City and Courtyard, 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 7 – 9
Heat Zones 6 – 9
Climate Zones 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 8" – 10" (20cm – 25cm)
Spread 10" – 1' (25cm – 30cm)
Spacing 12" (30cm)
Water Needs Average
Maintenance Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Semi-Evergreen
Garden Uses Beds and Borders, Edging
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

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