Heuchera americana (Green Spice Alumroot)
Heuchera americana (Green Spice Alumroot)
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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
Heuchera americana (Green Spice Alumroot) is a keystone Midwest native species highly prized by restoration ecologists, landscape architects, and home gardeners. Known for its strong ecological resilience, exceptional wildlife support, and a floristic C-Value of 7, this hardy perennial thrives in partial sun to full shade across dry-mesic (rocky slopes & open oak woodlands) soils. Whether you are creating a dedicated pollinator garden, stabilizing soil on slopes, or restoring remnant prairie and woodland acreage, Natural Communities supplies this species in dependable formats—including deep-cell live plugs, bare-root stock, individual seed packets, and bulk Pure Live Seed (PLS) by weight.
Comprehensive Ecological & Growth Specifications
| Botanical Name | Heuchera americana |
| Alternate Common Names | Green Spice Alumroot, Heuchera americana |
| Plant Family | Saxifragaceae (Saxifrage Family) |
| Regional Native Status | Native |
| Native Range (States) | AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WI, WV |
| Midwest & Regional County Distribution | IL: Cook, DuPage, Kane, Lake, McHenry, Will, Kendall, Boone, Winnebago, DeKalb, LaSalle, Grundy; WI: Kenosha, Racine, Walworth, Milwaukee, Waukesha, Dane, Rock, Jefferson; IN: Lake, Porter, LaPorte |
| Primary Native Habitats | Rich Deciduous Woods, Calcareous Slopes, Rocky Ravines |
| USDA Hardiness Zones | Zone 3 - 8 |
| Sunlight Exposure | Partial Sun to Full Shade |
| Soil Moisture Range | Dry-Mesic (Rocky Slopes & Open Oak Woodlands) |
| Soil pH Range | 5.5 - 7.5 |
| Height at Maturity | 1' - 2' |
| Spread & Growth Habit | Clumping / Well-Mannered (Non-aggressive) |
| Root Architecture & Depth | Deep Taproot System (18+ Depth) |
| Deer & Wildlife Resistance | High to Moderate |
| Drought Tolerance | Medium |
| Salt Tolerance | Low to Moderate |
| Larval Host Status | Alumroot Specialist Borer Moths |
| Specialist Insects & Wildlife Support | Colletes heucherae (Specialist Alumroot Cellophane Bee - Strict Oligolege), Specialist Syrphid Flies, Small Halictid Sweat Bees |
| Ecological Function | High Drought & Heat Resilience, Erosion Control on Dry Slopes & Kames, Early/Late Pollinator Forage Hub, Root Biomass & Soil Structure Improvement |
| Coefficient of Conservatism (C-Value) | 7 |
| Germination Code / Stratification | C(30) |
| ACOE Wetland Indicator Status | FACU |
| Recommended Plug Spacing | 12 to 18 on-center |
| Plant Associates | Quercus alba (White Oak), Quercus velutina (Black Oak), Carex pensylvanica (Common Oak Sedge or Pennsylvania sedge), Monarda bradburiana (Bradbury's Bee Balm), Antennaria plantaginifolia (Field Pussytoes), Polystichum acrostichoides (Christmas Fern) |
| Seed Packet Coverage | Covers 100 to 250 sq. ft. |
| Seeds Per Pound | 100000.0 |
| Broadcast Seeding Rate (PLS) | 1.50 – 3.00 lbs/acre PLS |
| Toxicity & Pet Safety | Non-toxic / Safe for native wildlife & domestic pets |
Botanical Profile & Ecological Characteristics
Heuchera americana plays a critical role in establishing healthy, diverse native plant communities throughout the Midwest. Adapted over thousands of years to regional climate patterns, seasonal temperature extremes, and variable moisture conditions, it develops a resilient root architecture (deep taproot system (18"+ depth)) that builds soil organic matter, improves water infiltration, and resists environmental stress.
Heuchera americana, commonly known as Green Spice Alumroot, is a native perennial prized for its ornamental foliage and delicate flowering displays. This hardy woodland plant thrives in partial shade to dappled sunlight, making it an excellent choice for shaded garden beds and borders. The distinctive mottled green leaves often develop rich burgundy or bronze undertones, particularly in cooler seasons, adding visual interest year-round. Delicate spikes of small flowers emerge in spring, attracting pollinators while requiring minimal maintenance once established. Drought-tolerant and deer-resistant, this cultivar adapts well to various soil conditions and serves as a reliable ground cover or accent plant in native plant gardens and naturalized landscapes.
- Sun Exposure Prairie/Savanna
- Soil Conditions Wet-Mesic, Mesic, Dry-Mesic
- Height 2'
- Flower Color Green
- Flower Time May, June, July
Faunal Associations & Specialist Wildlife Support
As a vital resource in native ecosystems, Heuchera americana provides essential sustenance across multiple trophic levels:
- Larval Host & Pollinator Support: Alumroot Specialist Borer Moths.
- Specialist Floral Visitors: Colletes heucherae (Specialist Alumroot Cellophane Bee - Strict Oligolege), Specialist Syrphid Flies, Small Halictid Sweat Bees.
- Avian & Insect Forage: Flowers provide dense, accessible nectar and pollen during the peak growing season, followed by nutritious seed heads that feed native songbirds and overwintering wildlife.
Native Plant Associates & Community Ecology
In authentic Midwestern habitats—such as Rich Deciduous Woods, Calcareous Slopes, Rocky Ravines—Heuchera americana naturally co-occurs and establishes balanced, biodiverse communities alongside:
- Quercus alba (White Oak)
- Quercus velutina (Black Oak)
- Carex pensylvanica (Common Oak Sedge or Pennsylvania sedge)
- Monarda bradburiana (Bradbury's Bee Balm)
- Antennaria plantaginifolia (Field Pussytoes)
- Polystichum acrostichoides (Christmas Fern)
Landscape Applications & Restoration Guidelines
Heuchera americana is well-suited for home landscaping borders, rain gardens, naturalized meadows, and conservation acreage alike.
- Plug Spacing: Space live plugs approximately 12" to 18" on-center for optimal crown development and contiguous ground coverage.
- Broadcast Seeding Rate: 1.50 – 3.00 lbs/acre PLS (when included in diverse prairie seed mixes).
- Regional Provenance: Sourced and propagated from regionally adapted Midwest ecotypes for maximum ecological fitness and cold hardiness.
Frequently Asked Questions (FAQ)
What are the ideal growing conditions for Green Spice Alumroot?
Heuchera americana performs best in partial sun to full shade with dry-mesic (rocky slopes & open oak woodlands) conditions. It thrives in authentic regional soil types ranging from sandy loam to well-drained clay loams.
How do I germinate and establish Green Spice Alumroot from seed?
Seed of Heuchera americana has a germination code of C(30). For best results, sow seed in late fall/winter for natural outdoor freeze-thaw stratification, or cold-moist stratify in refrigeration for 30 to 60 days before spring indoor propagation.
Is Green Spice Alumroot deer and herbivore resistant?
Yes. Native plants adapted to Midwestern habitats naturally produce protective secondary compounds and fibrous textures that make them highly resistant to deer, rabbits, and other grazing herbivores.
When should I expect Green Spice Alumroot to emerge and bloom?
Established plants break dormancy in spring as soil temperatures warm, developing vigorous foliage before blooming in their seasonal window to provide vital nectar when native pollinators need it most.
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.
- Wholesale orders: Delivery and pickup are arranged separately according to the order, supplier yard and location. Wholesale pickup is free.
- 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
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.
Consultation Services
Ecosystem Restoration Considerations
Native Seed Establishment Best Management Practices
Native Seed Stratification Best Management Practices
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.