# Can US-Grown Hemp Be Spun with Supima Cotton?

> Yes. US-grown hemp can be spun with Supima cotton when the hemp is cottonized to a cotton-system staple. Here is the grade, the yarn, and the hangtag limit.

*Published 2026-09-28 · tags: US-grown hemp, Supima, home textiles*

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Yes. US-grown hemp can be spun with Supima cotton when the hemp is cut to a staple the cotton system can draft. Supima is the trademark for American-grown extra-long-staple Pima cotton. Imperium's home program is built on that pairing: US hemp in the blend, US Supima as the cotton, spun for sheeting, towels, and drapery rather than for a plastic "linen look."

[Imperium Fiber](/) sells that construction as [US Hemp / US Supima home goods](/products/home-goods). This page is the spinning answer. Cloth weight is in [what GSM 24s/1 and 38s/1 cotton-hemp yarn can produce](/learn/gsm-from-24s-38s-cotton-hemp-yarn). Thread count is in [can cotton-hemp yarn make 120–200 TC bed linen](/learn/cotton-hemp-yarn-120-200-tc-bed-linen). The route from US farm to India spinning and back is the [US-grown hemp textile supply chain](/learn/us-grown-hemp-supply-chain-usa-india-usa). More of the set lives in the [Journal](/learn).

## Why US-Grown Hemp Can Share a Cotton Frame

US-grown hemp starts as a bast fiber, long and woody, which is the wrong shape for a cotton ring frame. Cotton-system spinning wants a staple in the same length band as cotton. Imperium's apparel grade under the [HFGA US Hemp Textile Standard](https://hfga.io/standards/us-hemp-textile-standard/) is TX-A: fineness 6.1–12.0 dtex, length 25–45 mm, tenacity at least 35 cN/tex, shive at or below 3 percent. That length is the cotton-system window. The [standards page](/standards) is explicit that TX-A is for cotton-system blends and cottonized fiber, and that TX-B long-line wet spinning is a different product Imperium does not sell as this yarn.

[Supima](https://supima.com/the-cotton) describes its cotton as American-grown extra-long-staple fiber, a small share of world cotton, ginned to keep that length. Extra-long staple overlaps the upper end of the TX-A band, which is why a mill can draft US-grown hemp and Supima cotton on one cotton system instead of pretending a coarse bast sliver is cotton. [USDA hemp rules](https://www.ams.usda.gov/rules-regulations/hemp) still govern the US crop. Cottonizing does not turn hemp into cotton. It makes the staple spinnable beside it.

## What US-Grown Hemp Changes in a Supima Yarn

The blend is a materials choice, not a license to print a 100 percent Supima hangtag.

### US-Grown Hemp Supplies Strength and a Linen Hand

Hemp's job in the yarn is tenacity and the dry, breathable hand people buy linen for. Flax costs more to process. US-grown hemp in a cotton-system blend is how [home goods](/products/home-goods) keep that hand at a bedding-program price. The cotton side keeps the surface smoother than hemp alone. That is the same split the product page states: US Supima's extra-long staple for a smooth face, hemp for the linen character.

### Supima Cotton Is the Extra-Long Staple, Not the Whole Cloth

Supima cotton is American Pima. [Supima](https://supima.com/) licenses the trademark for products made with that cotton. A hemp blend is not a 100 percent Supima fabric. Fiber content on the spec should name both: US-grown hemp percent and Supima cotton percent. Using the SUPIMA mark on a finished good is a licensing question with Supima, not a right that follows from buying the fiber. Say "US hemp / US Supima" the way the construction is named. Do not imply the hangtag is automatic.

### US-Grown Hemp Does Not Add a Plastic Filament

Both fibers are cellulose. The yarn does not start as polyester, so it does not shed polyester microplastic the way a poly-cotton sheet can. That is source control, not a medical claim about sleep. Overnight contact and easy-care resins are a separate brief in [polyester bedding and overnight skin contact](/learn/polyester-bedding-overnight-skin-contact). A linen-hand comparison without this blend is in [a linen alternative](/learn/linen-alternative-fabric).

## How to Spec US-Grown Hemp with Supima

Ask for the grade, the count, and the ratio before you ask for a hand feel.

### Name the Count Next to the US-Grown Hemp Percent

Singles counts in this program are English cotton count. 24s/1 is the mid sheeting yarn. 38s/1 is the finer sheeting yarn. The home page also carries an ultra-fine 40s/1 for the premium tier. Percent hemp versus Supima cotton changes strength, hairiness, and how "linen" the face reads. Write both on the tech pack.

### Keep Finishes Off the US-Grown Hemp Story

TX-A restricted substances on the [HFGA standard](/standards) keep PFAS, glyphosate, chlorine bleach, and high formaldehyde out of the fiber grade. A converter can still add a wrinkle resin later. If the claim is clean inputs, the finish list has to stay as disciplined as the fiber. [EPA PFAS](https://www.epa.gov/pfas) guidance is the reason that column exists.

### Trial US-Grown Hemp Where the Cloth Touches Skin Longest

Start with sheeting and duvet covers, then towels. Those are the [home goods](/products/home-goods) slots. GSM and thread count are the next two pages in this cluster, not guesses from a swatch photo. Write hello@heartland.io with the count and the end use. [Imperium Fiber](/) is a [Heartland Industries](https://heartland.io) brand.

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Source: https://imperiumfiber.com/learn/us-grown-hemp-spun-with-supima-cotton
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