Cobweb Spiderwort (Tradescantia)

Cobweb Spiderwort (Tradescantia sillamontana) is a fabulous groundcover with cobweb-covered foliage and large bright-pink, quarter-sized flowers in mid-summer.
Zones6 - 10
Advantages
Deer Resistant
Good For Containers
Evergreen
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40"
Mature Height6-8" tall
Mature Spread16-20" wide
Bloom TimeEarly to mid summer
ShippingNo longer available this season. Learn More…
SizePlant - 5" Deep Pot
SKUHC015379

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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SKU
HC015379

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Details
Cobweb Spiderwort (Tradescantia sillamontana) is a great groundcover in sun or shade. Spreading slowly with thick, finger-like roots, it forms an attractive mat of white cobweb-covered leaves. In mid-summer, it suddenly comes into bloom with a month-long display of bright pink flowers. A rare plant native to the Sierra Madre mountains of northeastern Mexico.
More Information
SKUHC015379
Item Package Size
Plant - 5" Deep Pot
Common Name
Cobweb Spiderwort
Botanical Name
Tradescantia sillamontana
Zones
6, 7, 8, 9, 10
Light Requirements
Full Sun
Flower Color
Pink
Mature Height
6-8" tall
Mature Spread
16-20" wide
Bloom Time
Early to mid summer
Ships As
Potted Plant
Evergreen Foliage
Yes
Soil Type
Sandy Soil, Clay Soil, Average Soil, Compost Enriched Garden Loam Soil, Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise, Average
Amount Of Rain
10 to 20", 20 to 30", 30 to 40"
Advantages
Deer Resistant, Good For Containers, Evergreen
Ideal Region
West, Southwest, Pacific Northwest, Coastal California
Planting Time
Spring / Summer, Fall
Native To
North America
Ships To Canada
No
Planting Guides
Tradescantia (Spiderwort) is a genus of herbaceous perennial plants in the Western Hemisphere (New World) in temperate and subtropical areas.

Preferred growing conditions:
  • Plant in most soil types including clay.
  • Best positioned in a full to partial shade locations.
  • Mulch with common mulch materials in dry Western climates. Leave un-mulched in moister Eastern climates.
  • Water regularly the first growing season to establish the plant. Most species and varieties like moderately moist soil and should receive regular irrigation in arid climates. Rainfall is generally sufficient in moist Eastern climates.
  • Deadheading is not needed.
  • Fertilize lightly in the fall with a half and half mix of Yum Yum Mix and good quality compost.
  • Special comments:
  • Plants are generally morning bloomers and close in the heat of afternoon on sunny days.
  • If plants become scraggly after blooming is done, cut back to the ground and they will re-grow healthy foliage in late summer.
  • Cut back plants in late fall. If cut back during the previous summer, wait until mid-spring to cut plants back to the ground.
  • Tradescantia sillamontana is a xeric, slow growing groundcover that grows on succulent underground roots. The plants can be divided in mid-spring if additional plants are desired. Otherwise leave undisturbed. Selectively cut back any stems with winter kill, but don't cut back the entire plant.

  • 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.
Shipping

No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

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