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Pachysandra procumbens (Allegheny Spurge)

Allegheny Spurge, Mountain Spurge, Allegheny Mountain Spurge, American Thick-Stamen

Pachysandra procumbens, Allegheny Spurge, Mountain Spurge, Allegheny Mountain Spurge, American Thick-Stamen, Shade perennials, Plants for shade

Pachysandra procumbens (Allegheny Spurge) is a shrubby ground cover which spreads via underground rhizomes to form a dense carpet of blue-green leaves marbled with silver and purple. The leaves are arranged in circular patterns around fleshy, erect stems. The foliage is usually deciduous in USDA Zones 5 and 6 but semi-evergreen to evergreen in Zones 7 to 9. Fragrant white flower spikes, 2-4 in. long (5-10 cm), appear in early to late spring, often before the new leaves emerge, but the added value of this plant is its attractive foliage. Allegheny Spurge is an excellent ground cover for shady areas. It is considered more attractive than the Japanese Spurge (Pachysandra terminalis) and less aggressive. This woodland plant performs well in a variety of soils from moist to dry as long as it is growing in partial to full shade.

  • Grows up to 6-12 in. tall (15-30 cm) and 12-24 in. wide (30-60 cm). Spreads slowly to form colonies.
  • A part shade to full shade lover, it is best grown in acidic, organically rich, medium moisture, well-drained soils. Too much sun yellows the foliage and causes poor growth. Drought tolerant once established. Can be evergreen if protected from cool winds.
  • Perfect for the shade gardens, as a groundcover or underplanting shrubs. Great for banks and slopes, woodland gardens.
  • A hardy, low-maintenance and forgiving perennial, it is considered by many to be very deer resistant.
  • No serious pest or disease issues. Keep an eye out for leaf blight, aphids, slugs, scale and mites.
  • Propagate by division in late summer or early fall. Softwood cuttings may be taken in spring or early summer.
  • Can be toxic and sometimes fatal to animals if eaten.
  • Native to the southeastern United States.

Requirements

Hardiness 5 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 15, 16, 17
Plant Type Perennials
Plant Family Buxaceae
Genus Pachysandra
Exposure Partial Sun, Shade
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 6" - 1'
(15cm - 30cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 24" (60cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Evergreen, Semi-Evergreen
Native Plants United States, Northeast, Pennsylvania, Midwest, Indiana, Southeast, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Alabama, Florida, Georgia, Kentucky
Tolerance Full Shade, Drought
Garden Uses Banks And Slopes, Ground Covers, Underplanting Roses And Shrubs
Garden Styles City and Courtyard, Informal and Cottage, Prairie and Meadow
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Alternative Plants to Consider

Pachysandra terminalis ‘Silver Edge’ (Japanese Spurge)
Pachysandra terminalis ‘Green Carpet’ (Japanese Spurge)
Pachysandra terminalis ‘Green Sheen’ (Japanese Spurge)
Pachysandra terminalis (Japanese Spurge)

Recommended Companion Plants

Hydrangea quercifolia (Oak Leaf Hydrangea)
Leucothoe fontanesiana (Dog Hobble)
Rhododendron vaseyi (Pink-Shell Azalea)
Phlox divaricata (Woodland Phlox)
Polemonium reptans (Creeping Jacob’s Ladder)
Adiantum pedatum (Northern Maidenhair Fern)
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.
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Requirements

Hardiness 5 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 15, 16, 17
Plant Type Perennials
Plant Family Buxaceae
Genus Pachysandra
Exposure Partial Sun, Shade
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 6" - 1'
(15cm - 30cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 24" (60cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Evergreen, Semi-Evergreen
Native Plants United States, Northeast, Pennsylvania, Midwest, Indiana, Southeast, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Alabama, Florida, Georgia, Kentucky
Tolerance Full Shade, Drought
Garden Uses Banks And Slopes, Ground Covers, Underplanting Roses And Shrubs
Garden Styles City and Courtyard, Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?
Not sure which Pachysandra (Spurge) to pick?
Compare Now

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