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Products > Plecostachys serpyllifolia
Plecostachys serpyllifolia - Cobweb Bush

Note: This plant is not currently for sale. This is an archive page preserved for informational use.  

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Habit and Cultural Information
Category: Shrub
Family: Asteraceae (Sunflowers)
Origin: South Africa (Africa)
Evergreen: Yes
Flower Color: Pink & White
Bloomtime: Summer/Fall
Synonyms: [Helichrysum petiolare microphyllum, Hort.]
Height: 2-3 feet
Width: 4-5 feet
Exposure: Sun or Shade
Seaside: Yes
Summer Dry: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 20-25 F
Plecostachys serpyllifolia (Cobweb Bush) - A decorative fine textured grey-leafed plant from the Cape Peninsula of South Africa that spreads and sprawls, forming a dense low growing shrub to 4 feet wide and 2 to 3 feet tall can get taller in a confined space and when trimmed to maintain a narrower plant. The flowers are not overly showy but appear from summer into fall and are composed of small yarrow-like composite flowers with cream colored rays and pink disc flowers. Plant in full sun to light shade. A great plant along the beach and in coastal areas is very drought resistant, even to the point that it has been noted spreading into non-irrigated areas. In its native South Africa it can be found on seasonally moist sandy areas along the coast and lower mountain slopes from the winter rainfall Western Cape through the more summer rainfall Eastern Cape into southern KwaZulu-Natal. The name for the genus comes from the Greek words 'plekein" which means "to twist" or "plait" which likely is in reference to the twisted and tangled growth habit and 'stachys' meaning "an ear of grain" or "spike" in reference to the shape of the inflorescence. The specific epithet is in reference to the foliage being similar to Creeping Thyme, Thymus serpyllum. This plant was first introduced in California in the late 1980's as Helichrysum petiolatum microphyllum or 'Nana' and though not declared a weed in California, this plant has been noted as an escaped garden plant in Portugal and salt marshes and sloughs in Ventura and Santa Barbara counties. While a useful and attractive plant in the garden, its tendency to seed about and escape the garden is of definite concern and it should not be in gardens interfacing non-cultivated wildland coastal areas. For this reason we have voluntarily decided not to continue production of this plant.  The information on this page is based on research conducted about this plant in the San Marcos Growers library, from online sources, and from observations made of the crops growing in our nursery, plants in the nursery's garden and those in other gardens where we may have observed it. We also have incorporated comments received from others and welcome getting feedback from those who may have additional information, particularly if this information includes cultural information that would aid others in growing Plecostachys serpyllifolia.