Alphabetical Plant Listing

Saponaria officinalis 'Rosea Plena' (Soapwort)

Soapwort 'Rosea Plena'


Saponaria officinalis 'Rosea Plena' (Soapwort) is a rhizomatous perennial forming wide clumps of upright stems clad with lance-shaped dark green leaves. From mid to late summer, it boasts terminal and axillary clusters of fragrant, double, pale-pink flowers. Resembling small carnations, the blossoms exude a scent of honey, lily and clove. The nectar of the flowers attracts butterflies and moths. A very popular Saponaria selection.

  • Grows up to 24 in. tall (60 cm) and 12-18 in. wide (30-45 cm). Tends to spread but not as rapidly as the species.
  • Performs best in full sun in average, medium to dry, slightly alkaline, well-drained soils. Tolerates poor rocky or sandy soils. Tends to sprawl when grown in rich soils. Drought tolerant once established.
  • Excellent choice for prairies and meadows, wildlife gardens or cottage gardens.
  • Generally disease free. Keep an eye out for slugs and snails. Deer resistant.
  • Deadhead spent flowers to prolong bloom period.
  • Propagate by division. Seedlings will not come true to type.
  • Saponaria officinalis species is native to Eurasia. It has widely naturalized in the U.S. and sometimes becomes a troublesome weed.
  • Find where this species is invasive in the United States.
  • Discover beautiful U.S. native plant alternatives.

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Requirements

Hardiness 3 – 8
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 18" (30cm – 45cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Sand
Soil pH Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Drought, Dry Soil, Rocky Soil
Attracts Butterflies
Garden Styles Gravel and Rock Garden, Prairie and Meadow

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By Mcajan, Shutterstock

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 3 – 8
Heat Zones 1 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 18" (30cm – 45cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Sand
Soil pH Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Drought, Dry Soil, Rocky Soil
Attracts Butterflies
Garden Styles Gravel and Rock Garden, Prairie and Meadow

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