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Anemone virginiana (Tall thimbleweed)

Anemone virginiana (Tall thimbleweed)

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Pure Live Seed

Seed is provided in Pure Live Seed (PLS) unless otherwise stated.

Pure Live Seed (PLS) expresses the viable seed content of a seed lot using its purity and germination or viability test results. It helps you compare seed lots and calculate how much bulk seed is needed to meet a specified PLS planting rate.

PLS weight and bag weight

PLS weight is not the same as the total weight of seed in a bag. For example, a lot with 80% purity and 75% viability contains 60% PLS: 80 × 75 ÷ 100 = 60. Supplying 10 lb PLS from that lot requires about 16.67 lb of bulk seed.

Use the current seed test and the stated basis of the mix specification. Germination calculations may include applicable hard or dormant seed. Seed-count estimates also require the number of seeds per pound; PLS alone does not provide a seed count.

What to check when buying a mix

Check whether each rate is stated in PLS pounds, bulk pounds, or a combination. A mix with both bases should not be described as having an all-PLS total.

PLS does not remove weed seeds or guarantee establishment. Review the seed label and analysis for weed content, and match site preparation, planting conditions and follow-up management to your project.

Sources: USDA NRCS, Understanding Pure Live Seed and The Importance of Seed Quality for Natural Resource Conservation.

Weight Conversions lbs. to oz.

0.01 pounds = 0.16 ounces

  • 0.1 pounds = 1.6 ounces
  • 0.25 pounds  = 4 ounces
  • 0.5 pounds = 8 ounces
  • 0.75 pounds = 12 ounces
  • 1.00 pounds = 16 ounces

Tall thimbleweed (Anemone virginiana) produces white to greenish-white flowers in late spring and early summer. The raised center of each flower develops into an elongated seed head, which later becomes covered in pale, cottony hairs. Those seed heads remain conspicuous after the flowers have finished.

A woodland edge or lightly shaded garden with moist, well-drained soil is a good setting. Established plants can tolerate some dryness, but a persistently saturated spot is a poor choice. Its upright stems place the flowers above the lower foliage without forming the dense canopy of a large shrub.

The plant can expand through underground rhizomes, producing additional shoots near the original clump. It is less aggressive than some other anemones, but it is not confined to a single stem. Leave the seed heads standing to retain their late-season appearance.

Plant specifications

Key growing facts

Sunlight Full sun to light shade
Soil moisture Moist, well-drained soil; occasional dryness tolerated
Height About 1-2½ ft
Bloom season Spring; Summer
Show / hide ▾Growing & planting details
Growth habit Rhizomatous perennial often producing vegetative offsets
Root form Rhizomes
Soil pH Acidic or neutral soil categories listed by Extension; numerical tolerance limits are not established
Cultivation hardiness zones Zones 2a–8b (general cultivation guidance)
Drought tolerance Mature plants show reasonably good drought resistance
Deer browsing Deer resistance reported in cultivation guidance; browsing remains possible.
Plant toxicity Poison characteristics are reported; listed parts: bark, flowers, fruits, leaves, roots, seeds, stems. Pet safety is not established.

Plant identification & seed reference

Botanical name Anemone virginiana
Other common names eastern tall anemone; Tall Anemone; Thimbleweed
Plant family Ranunculaceae

Plant characteristics

An adaptable wildflower that prefers a mesic to dry savanna situation, Tall Thimbleweed features clean white flowers beginning in June. The green cone-like seedhead is attractive through the summer, becoming a cottony tuft in autumn.

  • Flower Color White
  • Flower Time June- August
  • Show / hide ▾Plant communities & associatesNo verified list yet

    Illinois woodland and stream communities

    Middle Fork Woods, Vermilion County (1999–2002 survey). Recorded in: mesic ravine forest; dry upland bluff — east-facing river slope.

    Mesic ravine forest — selected native associates: Geranium maculatum, Phlox divaricata, Asarum canadense.

    Dry upland bluff — east-facing river slope — selected native associates: Carex pensylvanica, Carex rosea, Bromus pubescens.

    These plants share a recorded habitat; they were not necessarily found in the same small plot.

    Show / hide ▾Native range & C-value

    State nativity describes a broad range. Use the Chicago-region assessment for local context; a state listing does not establish county nativity.

    Wetland indicator — NWPL 2022 Midwest FACU
    C-value — Chicago region, Flora 2017 5
    Chicago-region native — Flora 2017 Yes
    Native range — U.S. states Alabama; Arkansas; Colorado; Connecticut; Delaware; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; New Hampshire; New Jersey; New York; North Carolina; North Dakota; Ohio; Oklahoma; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Vermont; Virginia; West Virginia; Wisconsin; Wyoming
    County nativity Not yet verified; occurrence records do not establish nativity.
    Show / hide ▾Pollinators & wildlifeNo verified list yet

    No additional named relationships have been verified for this listing.

    Show / hide ▾Frequently asked questions

    What are the ideal growing conditions for Tall thimbleweed?
    Light: Full sun to light shade. Soil moisture: Moist, well-drained soil; occasional dryness tolerated.

    Is Tall thimbleweed deer and herbivore resistant?
    Deer resistance reported in cultivation guidance; browsing remains possible. Even plants described as resistant may be browsed. Use physical protection where deer damage is a concern.

    When should I expect Tall thimbleweed to bloom?
    Typical flowering period: Spring; Summer. Timing varies with location and weather.

    Show / hide ▾Sources & ecological notes

    Illinois woodland records: Larimore, Phillippe & Ebinger (2008), Middle Fork Woods flora, Appendix I. © 2008 University of Illinois Board of Trustees, CC BY 4.0. Habitat records transcribed, selected and linked to catalog names by Natural Communities. Survey: 1999–2002.

    Native range & ecological ratings: Flora of the Chicago Region (2017), via Universal FQA; USACE Chicago FQA (2017); Kew WCVP / Plants of the World Online; USACE National Wetland Plant List.

    Growing conditions & other references: Illinois Wildflowers, John Hilty; NC State Extension Plant Toolbox.

    Native range does not identify the origin of the seed or plants offered. Community and wildlife records apply to the locations and conditions described.

    Research notes & credits

    USACE/ERDC fqadata — Chicago Region FQA 2017. Herman, B., Sliwinski, R. & Whitaker, S. (2017), Chicago Region FQA Calculator; distributed by USACE/ERDC in fqadata under CC0. Values may differ from Flora of the Chicago Region (2017). CC0 dedication. Retained for comparison; the displayed C-value follows Flora database 80.

    Range data: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew; 4 June 2026 release, accessed 7 September 2026. © The Trustees of the Royal Botanic Gardens, Kew. CC BY 3.0; selected and reformatted. Kew cannot warrant the quality or accuracy of these data. This use has no Kew endorsement.

    Flora rating attribution: Kenneth Johnson (2018), Flora of the Chicago Region UFQA Database, following Gerould Wilhelm and Laura Rericha (2017), Flora of the Chicago Region: A Floristic and Ecological Synthesis. Individual rating facts are presented with original commentary; the calculator’s software license is not treated as a license for the underlying Flora publication.

    Growing guidance: Illinois Extension — Keeping deer out of the yard and garden. Selected facts in original wording. General deer advice is not a species resistance rating.


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