Paronychia kepela ssp. serpyllifolia

Silver Nailwort

1" tall x 18" wide. Silver Nailwort is a tough-as-nails groundcover with tiny green thyme-like leaves and silver seed heads that look like white flowers. Recommended as an improved substitute for white thyme because it's more durable and drought tolerant. Drought resistant/drought tolerant plant (xeric).
Zones4 - 8
Easy To Grow
Rabbit Resistant
Low Maintenance
Good Rockgarden Or Alpine Plant
Multiplies / Naturalizes
Winter Interest
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40" (with care)
Mature Height1" tall
Mature Spread18" wide
Bloom TimeLate spring to early summer
ShippingNow shipping to zones 2-10.
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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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  • Buy a Tray of 32 for $6.47 per Plant and save 10%


1" tall x 18" wide, (cutting propagated), Native to the Pyrenees of southern Europe, Paronychia is a tough-as-nails groundcover that very closely resembles Creeping Thyme. However, we have found it to be much more xeric. It is resistant to fungal diseases of the stems and foliage and is very tolerant of dry winter conditions. As such, we are recommending it as a replacement for white-flowered thyme. Blooming in late spring, the flowers are insignificant, but the white bracts light up the plant for several months. Can tolerate occasional foot traffic

Flat of 32 plants will cover 48 square feet when planted together

More Information
Associated SKUsHC016184
HC014193 (Plant - 2.5" Pot)
HC015741 (Tray of 32)
Common Name
Silver Nailwort
Botanical Name
Paronychia kepela ssp. serpyllifolia
4, 5, 6, 7, 8
Light Requirements
Full Sun
Mature Height
1" tall
Mature Spread
18" wide
Bloom Time
Late spring to early summer
Ships As
Potted Plant
Soil Type
Average Soil, Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Easy To Grow, Rabbit Resistant, Low Maintenance, Groundcover, Evergreen, Good Rockgarden Or Alpine Plant, Multiplies / Naturalizes, Winter Interest
Ideal Region
West, Southwest, Pacific Northwest, Suitable Above 7000 ft
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Item Unit Of Measure
Ships To Canada
Planting Guides
Paronychia (Nailwort) - A low growing groundcover native to limestone areas of the Pyrenees and Alp mountain ranges of Europe.

Preferred growing conditions
  • Plant in low fertility ("lean"), fast draining soil in a full sun location. Avoid clay. Mulch with gravel or not at all.
  • Water regularly the first growing season to establish the plant. Thereafter, infrequent but deep watering is all this plant needs.
  • Deadheading is not needed.
  • Fertilize lightly in the fall with Yum Yum Mix.
  • Special comments
  • Paronychia is an evergreen, mat forming plant that needs little pruning or clipping. The white flowers quickly form showy white seed heads which stay on the plant for many months. Old seed heads can be scratched loose and swept or blown off (with a leaf blower) in late summer.

  • View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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Q & A

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