Switchgrass keeps showing up in the same three conversations: a CRP contract just expired and there are hundreds of acres of standing grass to deal with, a conservation or biomass program is offering per-acre money to plant native warm-season grass, or somebody bought ground that came with a stand already on it. In all three cases the question is the same — does switchgrass make good hay? The honest answer from growers who have actually baled it is "sometimes, and only if you cut it early."
This guide is for hay producers and cattle operations evaluating switchgrass hay as a real crop: what feed value to expect, when to cut, how high to cut, what it does to your equipment, how long establishment takes, and who will actually buy the bales. The agronomy is checked against university extension and USDA sources; the field experience is quoted verbatim from growers on the hay and ag forums, including the parts the program brochures leave out.
What switchgrass is, and where it actually fits
Switchgrass (Panicum virgatum) is a native warm-season perennial bunchgrass. That single sentence explains most of its behavior. Being warm-season means it does essentially nothing in April while your orchardgrass and fescue are booming, then grows hard through the July and August heat when cool-season grasses go dormant. Being a bunchgrass means it grows in clumps rather than knitting into a sod. Being native means it is deep-rooted, drought-tough, and happy on droughty or marginal ground where a conventional hay stand struggles.
Growers split it into two broad types. Upland cultivars such as Cave-in-Rock and Blackwell are shorter, finer, and better adapted to the northern half of the range. Lowland cultivars such as Alamo and Kanlow are taller and higher-yielding, and are the standard choice in the South. Lowland types generally out-yield upland types where the climate suits them, which is why most of the biomass literature you will run into is built around Alamo.
The honest framing is that switchgrass is a complement, not a replacement. It fills the summer slump, it produces on ground that will not carry alfalfa, and it does it without much input. What it will not do is replace a good cool-season hay field for feed quality. One long-time forage poster put the fit plainly:
"Switch grass is a bunch grass that is native to prairies. It has it's useful points, but really should be grazed rather than hayed."
— hay wilson in TX, on HayTalk thread 18356
That is the majority view among people who have run the crop: switchgrass is a better grazing plant than a hay plant, because grazing naturally harvests it while it is still immature. Haying forces you to pick one cutting date for the whole field, and that date decides everything.
The honest verdict on feed value
Here is the part the program literature tends to soft-pedal. Switchgrass quality collapses fast after the boot stage. Extension work at the University of Tennessee and USDA-NRCS puts well-managed boot-stage switchgrass at roughly 11 to 16 percent crude protein with total digestible nutrients in the mid-to-high 50s — genuinely respectable cattle feed. Let it head out and you are looking at 6 to 8 percent crude protein and rapidly rising lignin. That is not a small slide in quality. That is the difference between feed and bedding.
Forum growers describe the mature product in almost identical language, independently, across years and states:
"Switch grass is the fescue of summer grasses. Mature, pretty much straw."
— 801486, on AgTalk thread 1122446
"switchgrass can make decent hay, but if its mature, its pretty much straw!"
— grab789, on AgTalk thread 1122446
Note the word "decent" in that second quote. Nobody is claiming switchgrass beats second-cutting alfalfa. The realistic ceiling is a serviceable dry-cow, stocker, or maintenance-ration hay. Set expectations there and the crop can pencil. Set them at horse-hay quality and you will be disappointed.
It is worth separating switchgrass from native warm-season grass hay generally. Big bluestem and indiangrass — the other two members of the "big four" prairie grasses — are noticeably more palatable, and mixed native stands feed better than pure mature switchgrass. A Kansas grower running native prairie hay framed the whole category realistically:
"All the animals in my area eat it. Horses, cows, goats, sheep, with no problems other than 8% protein is excellent for our native hay. It is mostly just roughage."
— KS John, on HayTalk thread 103674
"Mostly just roughage" is the correct mental model. It is real feed, it has a place in a ration, and it is not a premium product. Not everyone is even willing to take it at that:
"As a cattle grower, I would not buy switch grass for feed or bedding. About the only thing that stuff is good for is bioenergy."
— Gearclash, on HayTalk thread 103674
That is a minority opinion but not a rare one, and it matters commercially: if buyers in your area hold it, your bales are hard to move at any price. Before you commit acres, find out what local cattle feeders think of native grass hay.
What quality to expect by cutting stage
| Stage at cutting | Typical crude protein | Typical TDN | Realistic use |
|---|---|---|---|
| Late vegetative to boot | 11–16% | ~55–60% | Growing cattle, lactating cows, good general hay |
| Early heading | 8–11% | ~52–56% | Dry cows, maintenance rations |
| Full head / post-anthesis | 6–8% | Below ~50% | Bedding, filler, ground into a mixed ration |
| After frost (biomass cut) | Very low | Very low | Biomass, bedding only |
If you sell hay by test, this crop makes the case for testing every lot. A boot-stage cut and a headed cut off the same field are different products, and pricing them the same costs you money in one direction or the other. See how to read a hay test for what to look at on the report.
Cut at boot stage or don't bother
Everything above reduces to one operational rule: cut before the seedheads emerge. In most of the range that is late June into early July, but calendar dates are a poor guide — walk the field and split a few stems. Boot stage is when the developing seedhead is still enclosed in the flag leaf sheath and you can feel the swelling but cannot see the head.
A grower who runs native warm-season grasses for both grazing and hay summed it up in one line that applies to every forage crop but especially this one:
"It's like everything else, the timing of the cutting determines the quality."
— Farm4Wildlife, on HayTalk thread 103674
This is exactly where conservation program rules cause trouble. Many native-grass and habitat programs delay any harvest until after a nesting-season cutoff — mid-July is common — specifically to protect ground-nesting birds. That cutoff often lands after switchgrass has headed out, which means the program is effectively paying you to produce low-quality forage. One Ontario grower going into a five-year funded native-grass planting flagged the conflict before he ever put seed in the ground: the program delayed harvest until after July 15, which pushed the crop toward a single late cut.
That is not a reason to avoid the programs. It is a reason to read the harvest-date rules before you sign, and to budget the resulting bales as bedding-grade rather than feed-grade. If you are working through the program side of a native grass stand, our guide to haying CRP and native grass ground covers the paperwork and eligibility questions separately.
Also be realistic about cutting count. Switchgrass is not a four-cut alfalfa field. Under a hay-quality system you are typically looking at one good cut with a possible light second cut, and the second cut must come early enough that the plant can rebuild reserves before dormancy. Taking a hard late cut going into fall is the fastest way to thin a stand you spent three years establishing.
Cut high: 6 to 8 inches is not optional
This is the single biggest adjustment for anyone coming from cool-season hay. You cannot mow switchgrass at 2 or 3 inches. Extension guidance is consistent across sources: leave at least 6 to 8 inches of stubble, and many agronomists push toward 8 to 10 inches on the last cut of the season.
There are two independent reasons, and both matter.
- Stand survival. Native warm-season grasses store the carbohydrate reserves that drive regrowth in the base of the stem, not just the crown. Scalp the field and you remove the pantry. Stands mowed short repeatedly thin out and get taken over by weeds and cool-season invaders within a few years.
- Equipment survival. Short-cut switchgrass stubble is stiff, sharp, and close to vertical — effectively a field of spikes pointed at your tires. Taller stubble bends and lays over under a tire instead of standing up and driving through it.
Getting a conventional mower to leave that much stubble takes deliberate setup. It is not something you achieve by just raising the three-point. A grower who cuts native warm-season grass regularly described the two standard fixes:
"Nothing wrong with making hay on them, need to cut higher than typically, either cylinder stops on a discbine, or custom cutter bar plates."
— Farm4Wildlife, on HayTalk thread 103674
Cylinder stops physically limit how far the header can drop. Skid plates or riser plates under the cutterbar lift the whole assembly. The University of Tennessee has published extension guidance specifically on adjusting mowing equipment for the increased stubble heights native grasses require, which tells you how routine this modification is in native-grass country. Whatever method you use, verify it with a tape measure in the field after the first pass rather than trusting the gauge.
The tire problem nobody warns you about
If you take one practical warning from this page, take this one. Switchgrass stubble punctures tires. Not occasionally — repeatedly, and fast enough to shut down a harvest.
"A friend of mine baled some switchgrass in October when CRP expired. 4440 on the round baler had a spare front tire. Stubble would puncture front tires as fast as they could fix them."
— sdnotill1983, on AgTalk thread 1122446
A second grower watched a custom operator walk away from a test plot over it:
"he cut 5 acres and had a flat tire on back of his tractor. He parked the tractor 3 hours later 4 tires flat on tractor and 2 on discbine. They say switchgrass can damage tires. Currently the switch grass is not being harvested."
— endrow, on HayTalk thread 18356
Six flats in three hours ended that harvest permanently. And in the same thread, another grower connected the damage directly back to cutting height after checking extension guidance:
"switchgrass needs to be mowed at 6"-8" high so that the tractor tire can roll it flat when driving over it instead of driving on shorter sharp cut stems that go into the tires"
— Vol, on HayTalk thread 18356
That is the whole mechanism in one sentence, and it reframes cutting height from an agronomy recommendation into an equipment-protection measure. Practical steps if you are going into a mature or previously unmanaged stand:
- Cut high on the first pass — this is your primary defense, and it costs nothing.
- The later and drier the cut, the worse the risk. Post-frost and post-CRP-expiration stands are the ones that shred tires. Green, immature stubble is far more forgiving.
- Consider tire sealant or foam-fill on the machines that spend the most time on stubble, particularly baler and mower caster wheels and tractor fronts.
- Minimize passes. Every trip across the field is another chance. Rake and bale efficiently rather than wandering.
- Carry a plug kit and a spare. The grower above had exactly one spare and it was not enough.
Burning is the other traditional answer for a rank, long-neglected stand. Fire cleans the field, recycles minerals, and gets you back to a manageable crop — but understand what you are handling. As one grower who had burned CRP switchgrass in Iowa put it: "Unbelievable how fast and HOT those field will burn." Use a written burn plan, check local regulations and permits, and never burn near a fuel-carrying slope or timber edge without help on hand.
Establishment: plan on three seasons
Switchgrass is slow. Not "a little slower than orchardgrass" slow — genuinely slow, because the seedling puts its early energy into roots rather than top growth. Plan on a full establishment year with no harvest, a partial second year, and full production in year three.
Seeding
- Rate: roughly 4 to 6 lb per acre of pure live seed (PLS) drilled; 8 to 10 lb PLS per acre if broadcasting. Always buy and calculate on a PLS basis, not bulk weight — switchgrass seed lots vary widely in germination and purity, and bulk pounds can badly misstate what you are actually planting.
- Seedbed: firm and weed-free. A cultipacker-style seeder such as a Brillion works well because seed placement is shallow and seed-to-soil contact is everything.
- Depth: shallow — about a quarter inch. Burying switchgrass seed is a classic stand failure.
- Timing: spring, once soils have genuinely warmed. The practical rule growers use is to sow it around corn-planting time, not with your cool-season hay mixes. Dormant late-fall seeding also works in some regions by using winter chill to break seed dormancy.
"Because they are warm season grasses I was told to sow around the time of corn, rather than earlier like a normal alfalfa timothy hay stand."
— BisonMan, on HayTalk thread 103674
Switchgrass seed also carries genuine dormancy. Freshly harvested seed can germinate poorly even when the tag looks fine, which is one more reason to buy on PLS and, where possible, buy seed that has been stored or stratified.
The first year
Two mistakes dominate year one. The first is fertilizing. Nitrogen in the establishment year overwhelmingly feeds weeds, which outgrow the slow switchgrass seedlings and shade them out. Hold the nitrogen until the stand is established, then apply in the 60 to 90 lb N per acre range for hay production.
The second is mowing too aggressively for weed control. It feels productive and it sets the stand back. An experienced native-grass grower was blunt about it:
"I wouldn't even mow it off in the first year for weeds. Generally its best to leave it alone. Cutting it at all in the first year, needs to be tall, like 10-12"."
— Farm4Wildlife, on HayTalk thread 103674
If you must clip, clip high — above the seedlings, purely to stop weeds setting seed. Chemical options exist and are commonly used in establishment, but products and legal rates vary by state and by whether the stand is pure switchgrass or a mix, so check your state extension weed guide and follow the label. Our general weed control in hay fields guide covers the broader program.
Monoculture or mix?
Mixed native stands of switchgrass, big bluestem, and indiangrass are common in habitat plantings and feed better than pure mature switchgrass, because big bluestem in particular is more palatable. The tradeoff is harvest timing: the species do not mature together, so one cutting date compromises all of them. A grower who has run both settled on separating them:
"I generally only do switchgrass as a monoculture anymore. It matures earlier, big blue and Indian can be a mix."
— Farm4Wildlife, on HayTalk thread 103674
If your goal is hay, that logic is sound: pure switchgrass fields you can cut on switchgrass's schedule, and a separate bluestem-indiangrass field you can cut on theirs. If your goal is wildlife habitat with hay as a byproduct, the mix is the better planting.
Baling and storing coarse, stemmy bales
Switchgrass bales differently from cool-season grass. The crop is tall, the stems are thick and hollow, and a mature crop is closer to cornstalks than to timothy in how it behaves through a machine.
- Condition it hard. Those hollow stems hold water long after the leaves are dry, and cracking them is what lets a bale actually cure. One grower baling native grass off former CRP ground credited an aggressive conditioner with making the stems more palatable as well as drier: "It does get run through a pretty aggressive conditioner on the mower and that may help make the stem more palatable."
- Watch the moisture spread. Leaf and stem dry at very different rates, so a probe reading can look fine while the stem cores are still wet. Check several bales in several spots — a hay moisture tester earns its keep on this crop.
- Expect a bulky, springy bale. Coarse stems resist compaction and want to expand after the chamber opens. Wrap accordingly.
- Use more wraps than you think. Stiff stems poke through thin coverage and start unravelling the wrap. Two and a half to three turns of net wrap is a reasonable starting point on coarse native grass, versus the two you might run on soft grass hay. If wrap is tearing or failing to hold on stemmy crops, our guide to why net wrap breaks on bales walks through the causes.
- Store it off the ground. Switchgrass hay is frequently a lower-value product stored outside all winter, which is exactly when base contact costs you the most. Rock, pallets, or a crowned pad pays for itself — see round bale storage base prep and storing net-wrapped bales outside.
One more thing worth planning for: tall, heavy-yielding switchgrass makes big, dense bales that stack and haul awkwardly. If you are moving volume, check your load counts before you promise a delivery date — hay hauling cost and load counts has the numbers.
Who buys switchgrass hay
This is where a lot of switchgrass projects come apart. The agronomy is solvable. The market often is not, and it should be settled before you plant.
Realistic outlets, roughly in order of how reliably they exist:
- Your own cattle. By far the safest. You control the ration and you are not asking anyone else to accept a novel product.
- Local cattle feeders, as dry-cow or maintenance hay. Workable if you cut early and can show a test.
- Bedding. Steady, undemanding demand, and mature switchgrass is genuinely good at it — absorbent and slow to break down. Lower price, but low quality standards.
- Biomass and pellet markets. Real in some regions and absent in others. Historically these markets have been thin, geographically concentrated, and dependent on a single nearby buyer. Verify the buyer exists and is contracting before you build a plan around it.
- Mulch, erosion control, and habitat contractors. A small but real niche in some areas.
The outlet that generally is not available is horse hay. The Ontario grower quoted earlier identified this cost before planting a single acre: "This loses the more profitable horse customers." He was right to flag it. Horse buyers pay the premium, and they buy on appearance and softness as much as on test results. A coarse, stemmy native-grass bale is a hard sell into that market at any price.
Another grower gave the right advice for selling a product buyers do not know: lead with data. "Always assail them with facts, not emotions when marketing something new," as KS John put it — meaning get the hay tested, put the numbers next to a familiar local hay on one sheet, and let the buyer compare. Our guides to how to sell hay and how to price hay cover the mechanics of lots, testing, and price discovery.
A final caution from the same discussion, aimed at anyone considering a large program-funded planting: don't plant more than you can move. As one grower asked bluntly of a proposed 30-acre seeding, "30 acres is a lot for no known market before hand. I would want to know I can move the product before looking any further." Starting small and scaling once you have a buyer costs you a little subsidy and saves you a lot of risk.
Should you plant it? A straight answer
Use this as a quick screen.
| Switchgrass is probably a fit if… | Look elsewhere if… |
|---|---|
| You have droughty or marginal ground that won't carry alfalfa | Your ground will grow a good cool-season or alfalfa stand |
| You need summer forage when cool-season grasses go dormant | You need spring and fall production |
| You feed your own cattle, or have a confirmed cattle/bedding buyer | Your business is built on horse-hay customers |
| You can cut at boot stage on your own schedule | A program rule forces you past heading before you can cut |
| You can set your mower up to leave 6–8 inches | You cannot modify cutting height on your equipment |
| You can wait two to three years for full production | You need tonnage off that field next season |
Read the right-hand column honestly. Most of the disappointed switchgrass stories start with someone who was in one of those situations and planted anyway because a per-acre payment made it look free.
Frequently asked questions
Will cattle eat switchgrass hay?
Yes, if it is cut before heading. Boot-stage switchgrass at 11 to 16 percent crude protein is readily eaten and makes serviceable cattle hay. Mature, headed switchgrass at 6 to 8 percent protein is a different product — cattle will sort through it and waste a lot, and some growers report they refuse it outright.
How tall should you cut switchgrass?
Leave at least 6 to 8 inches of stubble, and closer to 8 to 10 inches on the final cut of the season. Cutting height protects the stem-base reserves the plant needs to regrow, and taller stubble bends under a tire instead of puncturing it. Most operators need cylinder stops or riser plates to hold that height.
Does switchgrass really flatten tractor tires?
Yes. Stiff, short-cut switchgrass stubble punctures tires routinely — growers have reported multiple flats on a tractor and mower within hours of starting. The risk is worst in mature, dry, late-season stands. Cutting at 6 to 8 inches is the main defense, backed up by sealant or foam-fill and fewer field passes.
How long does switchgrass take to establish?
Plan on three seasons. The seedling puts its first-year energy into roots, so expect little top growth and take no harvest in year one. Year two gives a partial crop, and year three is normally full production. Withhold nitrogen the first year, since it mostly feeds competing weeds.
How much switchgrass seed per acre?
About 4 to 6 lb per acre of pure live seed when drilling, or 8 to 10 lb PLS per acre when broadcasting. Always buy and calculate on a PLS basis rather than bulk weight, because switchgrass lots vary widely in germination and purity, and the seed carries real dormancy.
Can you sell switchgrass as horse hay?
Generally no. Horse buyers pay for soft, leafy, fine-stemmed hay and buy heavily on appearance. Switchgrass is coarse and stemmy even when cut early, so plan on cattle feed, bedding, or biomass outlets. Growers moving into native grass consistently report losing their horse customers in the process.
Is switchgrass better grazed or hayed?
Most experienced growers say grazed. Grazing harvests the plant continuously while it is still immature and high in quality, avoiding the single-cutting-date problem that makes switchgrass hay so quality-sensitive. Rotational grazing with a 6 to 8 inch minimum residual keeps the stand vigorous.
Related reading: Haying CRP and native grass · Reed canary grass hay guide · Teff grass hay guide · How to read a hay test · How to sell hay · Round bale storage base prep
Sources: University of Tennessee Institute of Agriculture, Using Switchgrass for Forage (SP701-B) and Adjusting Mowing Equipment for Increased Stubble Heights When Harvesting Native Warm-Season Grasses (SP731-I); USDA Natural Resources Conservation Service, Switchgrass (Panicum virgatum) Plant Guide and Utilizing Switchgrass for Forage in the Southern Ozarks; University of Tennessee Extension, Using Native Warm-Season Grasses as Forage for Livestock. Grower experience quoted verbatim from HayTalk threads 103674, 18356 and 26368, and AgTalk thread 1122446. Accessed August 2026. Confirm seeding rates, herbicide options and harvest-date rules with your state extension service and, where a conservation program is involved, with your program contract.
Featured image: "Harvesting switchgrass Nov 2016 Cornell" by Wikibiogas, licensed CC BY-SA 4.0, via Wikimedia Commons. Switchgrass research plots being mowed at Cornell University, Ithaca, New York.
