Phlox bifida (Sand Phlox, Cleft Phlox)
Phlox bifida (Sand Phlox, Cleft Phlox)
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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
Sand phlox spreads low across the ground, with pale blue to nearly white flowers in spring. Give its trailing stems well-drained soil; full sun produces the best display, though light shade is also suitable.
Sun exposure for Phlox bifida: full sun preferred; light shade tolerated. Soil conditions: dry to medium moisture; well-drained. Recorded habitats include glades; Rocky dry open woods; Bluffs; Rock outcrops; Streambanks. Reported height: 3–6 in.
Growth habit: low, mat-forming phlox that spreads by trailing stems. Choose neighboring plants with compatible light and moisture needs, and allow space for their mature growth.
Plant specifications
Key growing facts
| Sunlight | Full sun preferred; light shade tolerated |
|---|---|
| Soil moisture | Dry to medium moisture; well-drained |
| Height | 3–6 in |
Native landscape companions
For full sun and dry-mesic soil, consider these native plants alongside Phlox bifida:
| Companion plant | Height |
|---|---|
| Wild Petunia (Ruellia humilis) | About 1 ft |
| Whorled Milkweed (Asclepias verticillata) | ½–2 ft |
| Prairie Alumroot (Heuchera richardsonii) | 1 to 2 feet |
| Pale Spiked Lobelia (Lobelia spicata) | ¾–2¼ 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 | Low, mat-forming phlox that spreads by trailing stems |
|---|
Plant identification & seed reference
| Botanical name | Phlox bifida |
|---|---|
| Other common names | sand phlox |
| Plant family | Polemoniaceae |
Plant characteristics
This lovely native groundcover has exquisite white blooms in the spring. It grows easily in medium to dry soils and can spread slowly over time to form a quality sunny groundcover if maintained properly. Phlox are known to be susceptible to powdery mildew and root rot, however, this robust native species has excellent resistance to both when planted properly.
Show / hide ▾Plant communities & associatesDocumented community records
Reavis Spring — hill prairie
Native hill-prairie stand surveyed in 1949–1951. These dated records do not establish presence today.
Other native plants recorded in this surveyed community: Amorpha canescens, Bouteloua curtipendula, Echinacea pallida, Euphorbia corollata, Liatris aspera, Monarda fistulosa, Physostegia virginiana, Pycnanthemum pilosum, Ruellia humilis.
Evers 1955, Table 14. Selected associates from the same community; records do not show immediate neighbors or prescribe planting ratios.
Government Rock — hill prairie
Native hill-prairie stand surveyed in 1949–1951. These dated records do not establish presence today.
Other native plants recorded in this surveyed community: Allium stellatum, Bouteloua curtipendula, Ceanothus americanus, Euphorbia corollata, Heuchera richardsonii, Monarda bradburiana, Physostegia virginiana, Ruellia humilis, Silphium integrifolium.
Evers 1955, Table 14. Selected associates from the same community; records do not show immediate neighbors or prescribe planting ratios.
Fults — hill prairie
Native hill-prairie stand surveyed in 1949–1951. These dated records do not establish presence today.
Other native plants recorded in this surveyed community: Allium stellatum, Bouteloua curtipendula, Ceanothus americanus, Echinacea pallida, Euphorbia corollata, Liatris cylindracea, Ruellia humilis.
Evers 1955, Table 14. 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 — Corps Chicago 2017 table | UPL |
|---|---|
| C-value — Chicago region, Flora 2017 | 8 |
| Chicago-region native — Flora 2017 | Yes |
| Native range — U.S. states | Arkansas; Illinois; Indiana; Iowa; Kansas; Kentucky; Michigan; Missouri; Tennessee; 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 Sand Phlox, Cleft Phlox?
Light: Full sun preferred; light shade tolerated. Soil moisture: Dry to medium moisture; well-drained.
Is Sand Phlox, Cleft Phlox deer and herbivore resistant?
Species-specific deer resistance has not been verified here. Even plants described as resistant may be browsed. Use physical protection where deer damage is a concern.
Show / hide ▾Sources & ecological notes
Landscape companion selection: Natural Communities compared the growing requirements shown on these species pages with selected source records: Hill prairie — Illinois. 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.
Native range & ecological ratings: Flora of the Chicago Region (2017), via Universal FQA; USACE Chicago FQA (2017); Kew WCVP / Plants of the World Online.
Growing conditions & other references: Missouri Botanical Garden; Missouri Plants.
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.
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.
Additional community records: Evers (1955), Hill Prairies of Illinois. Hill-prairie records adapted from Evers (1955), © University of Illinois Board of Trustees, CC BY 4.0. 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.
- 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.
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