Skip to product information
1 of 1

Rudbeckia triloba (Brown-eyed Susan)

Rudbeckia triloba (Brown-eyed Susan)

1. Choose plants or seed

Select one type, then choose your size below.

2. Choose a size

How many plants do you need?

Calculate plants & flats

Estimate quantities from your planting area and species-appropriate spacing, then round up to whole flats.

Quantity
Regular price $ 88.00
Regular price Sale price $ 88.00
Sale Sold out
Shipping calculated at checkout.
Buy 3, save 10% on eligible sizes
Eligible choices for this product:
  • Plants / 10 Pint Flat
  • Plants / 38 Plug Flat
  • Plants / 50-Cell Plug Flat
Mix and match eligible items. Applicable savings are shown in your cart and at checkout.

Available

Updated

Brown-eyed Susan (Rudbeckia triloba) produces many small yellow flowers with dark centers on a branched plant in summer. Lower leaves can have three lobes. The numerous flowering branches give it a different appearance from a plant bearing only a few large flower heads.

It is a biennial or short-lived perennial. A continuing patch often depends on new seedlings rather than the same individual plants surviving indefinitely. Leave some seed heads to mature where replacements are welcome; remove unwanted seedlings where the group is spreading beyond its intended area.

Full sun or partial sun with moist to average, well-drained soil is suitable. It can tolerate some dryness, but a sunny site with adequate moisture supports fuller growth. The plant can become tall and bushy, so use it in a mixed border or meadow with enough room for the branching stems.

Plant specifications & ecological relationships

Key growing facts

Sunlight Full to partial sun
Soil moisture Moist to mesic
Height Up to 5 ft
Bloom season Mid-summer to late summer
Show / hide ▾Growing & planting details
Growth habit Biennial or short-lived perennial
Root form Fibrous roots
Cultivation hardiness zones Zones 4a–8b (general cultivation guidance)
Drought tolerance Moderate drought tolerance; wilting or lower-leaf loss can occur
Deer browsing Deer sometimes browse the foliage.

Plant identification & seed reference

Botanical name Rudbeckia triloba
Other common names brown-eyed susan; Brown-Eyed Susan; Thin Leaved Coneflower; Three-lobed Coneflower
Plant family Asteraceae

Plant characteristics

Rudbeckia triloba (Brown-eyed Susan) is a very showy flower from the same family as black-eyed Susan. It is a bit taller and bushier than its cousin.  It is a biennial or a short-lived perennial, but self-sows readily.

  • Flower Color Yellow
  • Flower Time July-August

  • Frequently Asked Questions

    Why Purchase From Natural Communities Native Plants?

    What Native Plants Should I Buy?

    What Can I Expect: Shipping/Free Local Pick Up?

    What Are Your Plant Sizes? 

    Why Plant Natives?

    Photo By: Midwest Groundcovers

    Show / hide ▾Plant communities & associates

    Illinois woodland and stream communities

    Middle Fork Woods, Vermilion County (1999–2002 survey). Recorded in: perennial stream corridor.

    Perennial stream corridor — selected native associates: Phlox divaricata, Sorghastrum nutans, Acer saccharinum.

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

    Illinois plant communities

    Mesic black-soil prairie — central Illinois

    Recorded at Loda Cemetery Prairie (Iroquois County). INHS identifies these sites as remnants of this community.

    Selected native plants from the same remnant records:

    These inventories include edges and disturbed patches. Shared remnant records do not establish that every plant grows together in one microsite.

    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 1
    Chicago-region native — Flora 2017 Yes
    Native range — U.S. states Alabama; Arkansas; Colorado; Connecticut; Delaware; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; New Jersey; New York; North Carolina; Ohio; Oklahoma; Pennsylvania; Tennessee; Texas; Utah; Vermont; Virginia; West Virginia; Wisconsin
    County nativity Not yet verified; occurrence records do not establish nativity.
    Show / hide ▾Pollinators & wildlife

    Other insect & wildlife relationships

    Caterpillars this plant can feed

    Silvery Checkerspot; Wavy-lined Emerald.

    • Nectar and pollen: Flower heads supply nectar and pollen to visiting bees and butterflies.
    • Seed: Goldfinches and other songbirds eat the seeds.

    Additional published species records; Illinois insect occurrence is not established by this account. These records do not guarantee that every insect occurs at your planting site.

    Show / hide ▾Frequently asked questions

    What are the ideal growing conditions for Brown-eyed Susan?
    Light: Full to partial sun. Soil moisture: Moist to mesic.

    Is Brown-eyed Susan deer and herbivore resistant?
    Deer sometimes browse the foliage. Even plants described as resistant may be browsed. Use physical protection where deer damage is a concern.

    When should I expect Brown-eyed Susan to bloom?
    Typical flowering period: Mid-summer to late summer. Timing varies with location and weather.

    Show / hide ▾Sources & ecological notes

    Native landscaping evidence: These planting suggestions draw on published growing requirements, mature form and spread. Placement and maintenance advice reflects landscape design judgment using these sources: Rudbeckia triloba; Elymus canadensis; Veronicastrum virginicum; Silphium integrifolium.

    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.

    Illinois communities & local records: INHS: Loda, Prospect and Weston prairie records.

    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.

    Planting references and review

    Reviewed: 2026-09-26

    Plant spacing:Select a spacing suited to your site and planting design.

    Seeding rate: Use a site- and method-specific specification. No verified automatic species rate is supplied.

    Seed preparation: A species-specific preparation method and named code system need confirmation for the supplied seed lot.

    Plant Shipping & Care

    We want to ensure that our customers get what they want, a native backyard oasis. To do that, we need to follow a few simple guidelines and give you some information and pointers to make sure you get your plants delivered in a healthy state.

    As a reminder, you will receive an email to confirm your pickup or shipping window just before the plants are ready. See Order Fulfillment below for seasonal fulfillment windows.

     

    Choices to Receive Your Plants & Accessories

    • Retail online orders: Plant and seed orders ship only, except eligible trees and shrubs offered for pickup. Shipping charges are calculated at checkout.
    • Retail pickup — trees and shrubs only: Pickup is available by prior arrangement for eligible woody plants. Some container options are offered for scheduled pickup only. Check the selected product option and the cart pickup instructions before ordering. Pickup and shipped items require separate orders.
    • Wholesale orders: Plants, trees and shrubs are available for pickup by arrangement. Delivery can also be arranged for your order. Wholesale pickup is free. All seed orders ship, including wholesale seed.
    • Pickup locations and dates are confirmed by email. Please wait for confirmation before traveling to a pickup site. Our offices are not retail stores or nursery pickup locations.

     

    Order Fulfilment - When Your Plants or Other Items Will Be Ready

    We take orders all year long and seed is shipped all year, but we only provide the plants to you in certain fulfillment windows to ensure healthy plants.

    Wholesale Orders

    • Plant pickup and delivery are arranged for your order. Seed ships only.

     

    Retail & Website Orders

    • Seed Typically Ships Out Within One Week Of Order All Year Long
    • Typically, single species flats ship when ready, sometimes as soon as early to mid-April (depends on weather) through early-October.
    • Mixed species kits are batched and shipped as indicated on the product page.
    • If a plant order is placed while outside of the plant fulfillment window your plants will be reserved through your payment, however, the order will not be fulfilled and shipped until the following spring. We don't want to provide you plants when they won't be happy during the cold winter months. 
    • Early in the spring and later in the fall certain species may be dormant or partially dormant with brown leaves, however they will return to grow healthy next growing season.
    • Your order may arrive in several different shipments.
    • If certain plants within an order will not be available until a later date, we may choose to hold the full order until all are ready.  In certain circumstances, we may choose to send them in two separate shipments 
    • Fulfillment is always dependent upon plant availability.  We try our best but sometimes plants do not overwinter well and perish.  If a plant is on back order you will receive an email indicating the estimated shipping date.  If we can not provide the plant we will first notify you and give you an option of substitution or a refund of that individual species.
    • Plants are typically only packaged and shipped on Mondays to ensure they do not sit in the harsh delivery facility for extended periods of time over the weekend. You will receive a confirmation email once your delivery has been shipped and to estimate your delivery date.
    • Apparel & accessories are ready typically within one to two weeks. See product page for holiday shipping.

    Where We Ship

    Natural Communities ships native plants and seed from multiple supplier locations across the Midwest. Shipping coverage extends beyond our local consultation area; see the shipping map below. Availability and delivery options depend on the product and destination. Check the product details and shipping options at checkout, or contact us before ordering if you need help confirming coverage.

    Our on-site ecological consulting serves the greater Chicago region and southeastern Wisconsin, including the Milwaukee area. Consultations take place at your property by appointment. Our offices are not walk-in retail stores or plant pickup sites.

     

     

          What to Expect When Receiving Your Delivery

          • Your plants will be packaged with the utmost care
          • We will need to cut back certain plants prior to shipping. This seems counter-intuitive, however, the fewer leaves the less water the plants can lose during shipping, resulting in healthier plants for you. This also enables the plants to fit within the protective packaging and shipped safely.

           

             Shipments

            • Larger plant shipments will look similar to the picture below with a tray of your plants and a cardboard box to protect them during shipping.

             

             

            What to Do With Your Plants After  Receiving Your Delivery

            • Unpack your order IMMEDIATELY
            • Inspect for damage and report any issues immediately to Natives@NaturalCommunities.net
            • Water your plants
            • Install your plants as quickly as possible and water the entire garden area thoroughly
            • If you cannot install your plants immediately
              • Some plants may not be in a container, put them into some kind of a container such as a paper cup with loose soil until installation
              • Make sure each plant is receiving the appropriate amount of light.
              • Continue to water daily each morning and possibly again in the afternoon
              • No additional fertilizer is needed
            How to install native plugs
            View full details

            Solving a Site Problem? Get Expert Advice + Get Store Credit

            Whether you're fighting severe erosion, replacing invasive species, designing a pollinator haven, or seeding large acreage, choosing the wrong species wastes time and money. Talk 1-on-1 with a restoration ecologist to map out the exact species, plug counts, or seed mixes for your soil and goals. Book a consultation and get all or a portion credited directly back to your order.

            Questions & Answers loading...