Caltha palustris (Marsh Marigold)
Caltha palustris (Marsh Marigold)
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$30 minimum per species for seed.
$30 minimum per species for seed.
Each species requires a minimum of $30 of seed to proceed with checkout.
Pure Live Seed
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.
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
Marsh marigold begins growing early and flowers in spring. Wet, mucky soil—even shallow standing water—matches it better than an ordinary dry border.
For Caltha palustris, choose full to partial sun and wet soil. Recorded habitats include woodland vernal pools; Swamps; Soggy floodplain meadows; Marshes; Fens; Seeps and springs. Reported height: about ½–2 ft.
Growth habit: branching perennial spreading through reseeding; occasionally forms loose colonies at favorable sites. Allow space for this growth between neighboring plants over several seasons, rather than spacing only for the size of a young plant.
Plant specifications & ecological relationships
Key growing facts
| Sunlight | Full to partial sun |
|---|---|
| Soil moisture | Wet |
| Height | About ½–2 ft |
| Bloom season | Mid-spring |
Native landscape companions
For partial sun / light shade and wet soil, consider these native plants alongside Caltha palustris:
| Companion plant | Height |
|---|---|
| Broad-leaved Woolly Sedge (Carex pellita) | About 1–2½ ft |
| Sensitive Fern (Onoclea sensibilis) | 1½–3 ft |
| Water Horehound, American Bugleweed (Lycopus americanus) | About 1-3 ft |
| Fowl Manna Grass (Glyceria striata) | 2–3½ ft |
These landscape suggestions combine overlapping growing needs with documented plant associations. Match soil, seasonal wetness and mature spread to your site. Remnant records are described separately under Plant communities & associates.
Show / hide ▾Growing & planting details
| Growth habit | Branching perennial spreading through reseeding; occasionally forms loose colonies at favorable sites |
|---|---|
| Root form | Fibrous roots |
| Soil pH | Published cultivation guidance lists acidic soil conditions; no optimal numeric interval is established. |
| Cultivation hardiness zones | Zones 3a–7b (general cultivation guidance) |
| Drought tolerance | None |
| Deer browsing | Deer resistance reported in cultivation guidance; browsing remains possible. |
| Salt tolerance | None |
| Plant toxicity | Poison characteristics are reported; listed parts: leaves. Pet safety is not established. |
Plant identification & seed reference
| Botanical name | Caltha palustris |
|---|---|
| Other common names | marsh marigold; Cowslip; Marsh Marigold; Yellow Marsh Marigold |
| Seed germination | USDA lists cold stratification as not required; seed-lot response may vary. |
| Plant family | Ranunculaceae |
| Seeds per pound — reference estimate | 554000 |
Plant characteristics
Marsh Marigold is a showy wetland plant that tolerates sandy to clay soils, as well as, full to part sun. It prefers wetter conditions and can even thrive in shallow standing water, growing to an average of two feet. The glossy, heart shaped foliage is one of the first to emerge each spring and the large cluster of bright yellow flowers make this plant ideal for landscapes, especially rain gardens and pond edges.
Show / hide ▾Plant communities & associates
Chicago-region plant communities
Sand Ridge Savanna, Will County (2007–2009 study). Recorded in: sedge meadow.
Sedge meadow — selected native associates: Carex buxbaumii, Calamagrostis canadensis, Verbena hastata.
These records come from sampled communities within the preserve.
Green River community records
Sedge meadow East: Lee County, Illinois (2006). Selected catalog plants recorded in this community: Bolboschoenus fluviatilis; Onoclea sensibilis; Verbena hastata.
The study site includes restoration plantings. Community records do not establish county-native origin or a seed-mix recipe.
Other documented plant associations
These published associations show how this plant fits into natural vegetation. The region and community are identified for each list; moisture, shade and flooding can differ within a community.
Herb and moss layers
Across differing habitats in the tamarack range
Spring Bay Fen Nature Preserve — tall shrub fen
Surveyed in 2007, 2008 and 2011. Tall shrub fen on Lena muck, recorded separately from the adjoining forest and filled upland. These dated records do not establish presence today.
Other native plants recorded in this surveyed community: Acer saccharinum, Amorpha fruticosa, Asclepias incarnata, Blephilia hirsuta, Bolboschoenus fluviatilis, Carex hystericina, Carex stipata, Cephalanthus occidentalis, Chelone glabra, Cinna arundinacea.
Murphy, Phillippe & Ebinger 2021, Appendix 1. Selected associates from the same community; records do not show immediate neighbors or prescribe planting ratios.
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 | OBL |
|---|---|
| C-value — Chicago region, Flora 2017 | 8 |
| Chicago-region native — Flora 2017 | Yes |
| Native range — U.S. states | Alaska; Connecticut; Delaware; Illinois; Indiana; Iowa; Kentucky; Maine; Maryland; Massachusetts; Michigan; Minnesota; Missouri; Nebraska; New Hampshire; New Jersey; New York; North Carolina; North Dakota; Ohio; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Vermont; Virginia; Washington; West Virginia; Wisconsin |
| 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 Marsh Marigold?
Light: Full to partial sun. Soil moisture: Wet.
How do I germinate and establish Marsh Marigold from seed?
USDA lists cold stratification as not required; seed-lot response may vary.
Is Marsh Marigold 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 Marsh Marigold to bloom?
Typical flowering period: Mid-spring. Timing varies with location and weather.
Show / hide ▾Sources & ecological notes
Landscape companion selection: Natural Communities compared the growing requirements shown on these species pages with selected source records: Sedge meadow — Chicago region — Will County, Illinois; Sedge meadow East — Green River Lowlands, northwestern Illinois; Tall shrub fen — Illinois River valley. The shortlist is a planting-design inference. A shared record does not establish adjacency, identical soil requirements, local seed origin, or a tested planting combination. Regional synthesis records retain their documented focal-to-associate scope.
Will County community records: Phillippe, Marcum & Ebinger (2012), Sand Ridge Savanna vegetation, Tables 1–5. Selected species and habitat facts independently organized; no open license is asserted for the article. Sampled communities are kept separate from the preserve’s seeded field.
Illinois communities & local records: Ebinger et al.: Green River communities (2009).
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; USDA Forest Service: tamarack; USDA NRCS PLANTS; 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.
Community records adapted from Ebinger et al. (2009), Table 3, CC BY 4.0; selected facts reorganized by Natural Communities.
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.
Additional community records: Murphy, Phillippe & Ebinger (2021), Spring Bay Fen flora and vegetation. Selected facts and taxonomic links; source spellings and historical survey dates retained.
Plant Shipping & Care
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
- Website orders: Seed, plugs and bare-root plants offered for shipping are shipped to your address. Shipping charges are calculated at checkout.
- Container trees and shrubs: Some #3 and #5 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 where indicated in the cart.
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- 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
- Shipped or are Ready For Pick Up As Requested.
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
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
Seed Shipping & Care
Seed Shipping & Care
There is a minimum order requirement of $30 for each seed species. Seed ships all year and typically ships within a week of an order being placed.
We have attempted to put together some basic information regarding native seed installation, establishment, and maintenance. We hope you find it helpful. If you need further assistance on native seed establishment, please schedule a free consolation call here.
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