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A shrub bed under a fresh layer of pale, stringy shredded wood mulch.

Cost guide

Cypress Mulch Pros and Cons: Termites, Decay and Where It Comes From

Median posted bulk cypress mulch price at 4 supply yards, Oct. 2026: $46.50 a cubic yard

$32 to $49.99 bulk; $5.50 per 2 cu ft bag

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Illustration A shrub bed under a fresh layer of pale, stringy shredded wood mulch.

In this guide

Cypress mulch decays slowly, losing 3 to 7 percent of its weight in a year, but bagged cypress is mostly young sapwood that termites eat, and wetland harvesting is why Florida’s extension program says not to use it.

Key takeaways

  • Termites ate 11 percent of a store-bought cypress mulch sample and 12 percent of cypress sapwood in 3 weeks, but under 3 percent of cypress heartwood; the authors note that today’s cypress mulch comes from young trees with little or no heartwood (Duryea et al., J. Arboric. 25(3), 1999).
  • Cypress lost 3 to 7 percent of its weight in a year in a University of Florida plot trial and kept 6 of its original 9 cm of depth after 2 years, the same as pine bark (Duryea et al., J. Arboric. 25(2), 1999; UF/IFAS FR052).
  • Across 13 Southern states, cypress growth ran 2.1 times removals in 2008 Forest Service inventory data, but only 0.6 times in south Florida and 0.8 times in North Carolina (Brown, USDA Forest Service RMRS-P-56, 2009).
  • The UF/IFAS Florida-Friendly Landscaping Program does not recommend cypress mulch and names melaleuca, pine straw and eucalyptus instead (FFL Principle 4, page modified April 2, 2026).
  • Bulk cypress was posted at $32 to $49.99 a cubic yard at 4 supply yards in October 2026 (median $46.50), and a 2 cu ft bag at $5.50 (GIR price check, Oct. 2026).

11% of a cypress mulch sample eaten by termites in 3 weeks, vs 12% of cypress sapwood (UF, 1999)

6 of 9 cm cypress depth left after 2 years, tied with pine bark (UF/IFAS FR052)

0.6x cypress growth vs removals in south Florida, 2008 inventory (USDA Forest Service)

$46.50 median bulk price per cubic yard at 4 supply yards (GIR check, Oct. 2026)

What is cypress mulch made of?

Cypress mulch is shredded bark and wood of baldcypress (Taxodium distichum) and pondcypress, cut mostly in Florida and Louisiana, the two states that hold more than half of the South’s cypress area and volume (Brown, USDA Forest Service, 2009). It began as mill edgings, shavings and residue; demand later pulled in low-grade sawlogs and small whole trees.

The rot and insect resistance cypress is known for lives in heartwood from old trees. The USDA Wood Handbook rates old-growth baldcypress heartwood as resistant to decay and young-growth heartwood as only moderately resistant, and it says untreated sapwood of essentially all species has low resistance (FPL-GTR-282, Table 14-1, 2021). The Forest Service review credits the heartwood oil cypressene for that reputation.

Young trees are mostly sapwood. In the University of Florida termite study, the authors wrote that today’s cypress mulch is harvested from young trees with little or no heartwood, and termites ate the mulch at the same rate as cypress sapwood (Duryea, Huffman, English and Osbrink, 1999). No published mulch trial has tested a bag sold as cypress heartwood mulch.

Journal of Arboriculture page with the sentence on cypress mulch from young trees with little heartwood highlighted
Screenshot University of Florida researchers wrote that cypress mulch is harvested from young trees with little or no heartwood. Source: Duryea et al., Will Subterranean Termites Consume Landscape Mulches?, J. Arboric. 25(3), p. 147 (1999), accessed October 2026.

What are the pros and cons of cypress mulch?

The pros of cypress mulch are measured ones: slow decay, little settling, color that held for a full year and the mildest seed-germination effect of 6 Florida mulches. The cons are wetland sourcing, sapwood that termites eat, mild soil acidification and a price that buys nothing pine bark does not (Duryea, English and Hermansen, 1999).

Common claimWhat the research measuredVerdictSource
Cypress repels termites and insectsTermites ate 11% of cypress mulch and 12% of cypress sapwood in 3 weeks; heartwood under 3%False for bagged mulch; true of old heartwoodDuryea et al., 1999
Cypress lasts longer than other mulches3% to 7% weight loss in 1 year (eucalyptus 21%, utility chips 32%); about 5% in 2 years in Oklahoma vs about 22% for pineTrue, but pine bark matched it in both trialsDuryea 1999; Maggard 2012
Cypress keeps its colorStayed pink for 12 months; eucalyptus, utility chips and pine straw turned pinkish grayTrue in the Florida trialDuryea 1999, Table 1
Cypress blocks weeds betterAfter 1 year, weed numbers did not differ among the 6 mulchesNo better than other mulchesDuryea 1999
Cypress feeds the soilLowest nutrient concentrations of the 6 mulches testedFalse: the poorest nutrient sourceDuryea 1999
Cypress acidifies soilSoil fell from pH 5.0 to 4.6 under cypress in 1 year; 4.4 under pine strawMild; mid-packDuryea 1999
Cypress mulch is sawmill wasteIndustry says by-products of sawmilling go to mulch; a UF/IFAS forester said all sizes of trees are often fed into chippersBoth happen; the bag rarely says whichMulch and Soil Council; UF News, 1996
Florida results are from 6 mulches spread 9 cm (3.5 inches) deep near Gainesville; Oklahoma results from a 2-year trial in Stillwater. Sources as listed.

UF/IFAS staff reported in 1996 that cypress in full sun can crust and shed water, and an Alachua County trial of 15 mulches over 6 months rated wood chips, pine bark and pine straw as high as cypress (University of Florida News, April 1996).

How long does cypress mulch last?

Cypress mulch stays at a useful depth for about 2 years. In a University of Florida plot trial, a 3.5 inch (9 cm) layer of cypress kept 6 cm, about 2.4 inches, after 2 years, the same as pine bark; melaleuca kept almost 7 cm and pine straw 1 cm (Duryea, UF/IFAS FR052). Plan a top-up of about 1 inch every 2 years.

Mulch depth left after 2 years, from a 9 cm (3.5 in) start, Gainesville, Fla.
  1. Melaleuca7
  2. Cypress6
  3. Pine bark6
  4. Eucalyptus5
  5. Utility chips5
  6. Pine straw1

Source: Duryea, UF/IFAS FR052 (1999, reviewed 2006) The publication gives melaleuca as almost 7 cm and eucalyptus and utility chips as about 5 cm; cypress and pine bark exactly 6 cm; pine straw 1 cm.

Show the numbers
Depth left after 2 years
Melaleuca7
Cypress6
Pine bark6
Eucalyptus5
Utility chips5
Pine straw1
MulchDepth left after 2 years (from 9 cm)Weight lost in 1 yearSource
MelaleucaAlmost 7 cm3% to 7%FR052; Duryea 1999
Cypress6 cm3% to 7%FR052; Duryea 1999
Pine bark6 cm3% to 7%FR052; Duryea 1999
Eucalyptus (E. grandis)About 5 cm21%FR052; Duryea 1999
Utility-pruning chipsAbout 5 cm32%FR052; Duryea 1999
Pine straw1 cm3% to 7%FR052; Duryea 1999
Same 6 mulches, same Gainesville, Fla., trial. Duryea reports cypress, melaleuca, pine bark and pine straw together as 3% to 7% decomposed after 1 year. Sources: UF/IFAS FR052 (1999, reviewed 2006); J. Arboric. 25(2):88 to 97.

The slow decay comes from high lignin, the lowest nutrients of the 6 mulches and low winter respiration, not from heartwood (Duryea et al., 1999). In Oklahoma, cypress and pine bark nuggets decomposed slowest of 7 mulches, about 5 percent each in 2 years, against about 22 percent for pine (Maggard et al., HortTechnology 22(3), 2012). How much to add for a given depth is worked out in our guide to how much mulch you need.

Does cypress mulch attract or repel termites?

Cypress mulch neither repels termites nor draws them more than other wood mulch: it feeds them about the same. In a 3-week University of Florida test, eastern subterranean termites ate 11 percent of a cypress mulch sample and 12 percent of cypress sapwood, while they ate under 3 percent of cypress heartwood and melaleuca (Duryea et al., 1999).

Part of the treeDecay class (USDA Wood Handbook)Eaten by termites in 3 weeksTermites alive after 3 weeksSource
Old-growth baldcypress heartwoodResistantNot testedNot testedTable 14-1
Young-growth baldcypress heartwoodModerately resistantUnder 3% (pondcypress heartwood)Under 15%Table 14-1; Duryea 1999
Cypress sapwoodLow (sapwood of essentially all species)12%64% to 77% (pine and cypress sapwood)Duryea 1999
Store-bought cypress mulch (Gainesville, Fla.)Not rated11%Same as the other 5 mulchesDuryea 1999
No food at all (control)n/an/a8%Duryea 1999
Termite figures are Experiment 2 (eastern subterranean termite, Reticulitermes flavipes), a no-choice lab test at 98% humidity. Sources: Duryea et al., J. Arboric. 25(3):143 to 150 (1999); USDA FPL Wood Handbook, Table 14-1 (2021).

Termites ate every mulch in that experiment except melaleuca, and consumption tracked nitrogen and phosphorus (r = 0.91 and 0.96). LSU AgCenter entomologist Dennis Ring adds that the natural chemicals in cypress, redwood and cedar leach out, leaving food termites will eat (LSU AgCenter, Integrated Pest Management of Termites in the Landscape).

Placement matters more than species. These are the extension rules for mulch near a slab or pier foundation:

  1. Keep any mulch under 2 inches deep within 12 inches of the foundation so the soil there can dry (UF/IFAS IN651, 2006).
  2. Leave the termiticide-treated strip, about 4 inches wide and 6 inches deep beside the slab, uncovered and undisturbed (LSU AgCenter).
  3. Keep at least 6 inches of slab visible so mud tubes can be seen.
  4. Set shrubs at least 3 ft from the wall.
  5. Point sprinklers and drip lines away from the treated strip, and have the structure inspected for termites at least once a year.

Why is cypress mulch controversial?

Cypress mulch is controversial because much of it comes from wetland forests that regrow unreliably after clear-cutting. Stumps resprout on one-quarter to one-half of a former stand, seedlings need exact water levels, and 2008 Forest Service inventory data showed removals exceeding growth in south Florida and North Carolina (Brown, USDA Forest Service RMRS-P-56, 2009).

Cypress growth divided by removals, 2008 Forest Service inventory
  1. South (13 states)2.10
  2. Alabama12.40
  3. South Carolina2.30
  4. Georgia1.70
  5. Florida1.50
  6. NW Florida4.40
  7. Central Florida2.90
  8. NE Florida1.30
  9. North Carolina0.80
  10. South Florida0.60

Source: Brown, USDA Forest Service RMRS-P-56 (2009) Growing-stock volume of bald and pond cypress combined. Below 1.0, removals exceeded growth.

Show the numbers
Growth / removals
South (13 states)2.10
Alabama12.40
South Carolina2.30
Georgia1.70
Florida1.50
NW Florida4.40
Central Florida2.90
NE Florida1.30
North Carolina0.80
South Florida0.60
AreaCypress growth divided by removals, 2008Reading
South (13 states)2.1Growing faster than cut
Alabama12.4Growing faster than cut
South Carolina2.3Growing faster than cut
Georgia1.7Growing faster than cut
Florida, statewide1.5Growing faster than cut
Northwest Florida4.4Growing faster than cut
Central Florida2.9Growing faster than cut
Northeast Florida1.3Growing faster than cut
North Carolina0.8Cut faster than it grows
South Florida0.6Cut faster than it grows
Growing-stock volume, bald and pond cypress combined. Louisiana was not broken out in the paper. Source: Brown, Evaluating Cypress Sustainability: FIA Data In the Hot Seat, USDA Forest Service RMRS-P-56 (2009).
USDA Forest Service paper text showing cypress growth at 0.6 times removals in south Florida, highlighted
Screenshot Forest Service inventory data put cypress growth at just 0.6 times removals in south Florida, against 4.4 in the northwest panhandle. Source: USDA Forest Service, Brown, RMRS-P-56, p. 4 (2009), accessed October 2026.

Louisiana’s Governor’s Science Working Group sorted coastal cypress-tupelo land into 3 regeneration classes. Class III sites, flooded too long or with soil salinity of 4 ppt or more for baldcypress seedlings, will not regrow; the group recommended delaying harvest there and a reviewed regeneration plan before cutting Class I or II land (Conservation, Protection and Utilization of Louisiana’s Coastal Wetland Forests, April 30, 2005).

On 16 harvested Louisiana sites, a median 10 percent of baldcypress stumps had live sprouts; in 8 north Florida wetlands, 23 to 54 percent sprouted 2 years after harvest (SWG, 2005; UF/IFAS Circular 1458). The Mulch and Soil Council counters that Louisiana cypress is growing 6 times faster than it is cut, with 400,000 trees planted a year; its page cites no data source (MSC, Is cypress mulch sustainable?).

DateWhat happenedSource
April 1996UF/IFAS specialists warn that clear-cutting feeds all sizes of cypress into mulch chippersUF News
April 2005Louisiana Science Working Group recommends delaying harvest on Class III landSWG report
November 2006Save Our Cypress Coalition starts pressing Walmart, Home Depot and Lowe’sCoalition release, 2007
September 6, 2007Walmart tells suppliers it will stop buying cypress mulch harvested, bagged or made in Louisiana from January 1, 2008Coalition release
November 24, 2008Coalition reports a Lowe’s temporary moratorium on coastal Louisiana cypress; Home Depot says it avoids the same sourceHealthy Gulf update
2009Forest Service review: Southwide cypress growth 2.1 times removals, south Florida 0.6RMRS-P-56
October 2026Lowe’s published wood sourcing policy does not mention cypress; UF/IFAS still advises against cypress mulchLowe’s; UF/IFAS FFL
Retailer commitments above are as reported by the coalition; we found no current Walmart or Home Depot statement on cypress mulch in October 2026.

Is cypress mulch acidic or bad for plants?

Cypress mulch nudges soil pH down slightly and does not harm plants in the trials. Soil under cypress in Florida dropped from pH 5.0 to 4.6 in a year while pine straw took it to 4.4, and in Oklahoma salvia survived 100 percent under cypress against 25 percent with no mulch and no herbicide (Duryea, 1999; Maggard, 2012).

Fresh extracts of all 6 Florida mulches slowed lettuce seed germination in the lab, and cypress was the least inhibiting; by the January sampling no mulch inhibited germination (Duryea et al., 1999). Before planting blueberries or azaleas into an old cypress bed, a soil test will show whether pH has moved enough to matter.

Fire risk is moderate: in an Ohio test of 13 mulches, lit cigarettes ignited shredded cypress bark 2 times in 8 tries and shredded hardwood never (Steward, Sydnor and Bishop, J. Arboric. 29(6), 2003). Rubber burned hottest in that study, as our rubber mulch pros and cons page details.

Is cypress or cedar mulch better?

Cypress mulch outlasts cedar in the only trial that tested both: about 5 percent dry-weight loss in 2 years against about 10.5 percent for eastern redcedar (Maggard et al., 2012). Cedar wins on sourcing where it comes from juniper clearing, and both lose their pest-resisting chemistry as the oils leach out. The cedar side is covered in our cedar mulch pros and cons.

FactorCypressCedarPine barkSource
Dry weight lost in 2 years (Oklahoma)About 5%About 10.5% (eastern redcedar)About 5% (nuggets)Maggard 2012, Fig. 9
TermitesAte 11% in 3 weeks (no choice)Eaten; least preferred only with a choiceEatenDuryea 1999; GIR cedar page
FireCigarettes lit 2 of 8 samplesShredded western red cedar spread 47.9 ft a minute, fastest of 8Nuggets ignited infrequentlySteward 2003; Univ. of Nevada SP-11-04
Median bulk price, Oct. 2026$46.50 (4 yards)$50 (15 yards)$47.50 (6 yards)GIR mulch cost survey
Where it comes fromBaldcypress and pondcypress wetlands, Fla. and La.Western red cedar or juniper; eastern redcedar often cut as grassland encroachmentBy-product of pine pulp and lumber millsUSFS 2009; UF News 1996
Cedar and pine bark rows summarize sibling GIR pages and the same Oklahoma trial.

How much does cypress mulch cost?

Bulk cypress mulch was posted at $32 to $49.99 a cubic yard at 4 supply yards in October 2026, before delivery, with a median of $46.50. A 2 cu ft bag at $5.50 works out to $74.25 a yard, so bagged cypress costs about 60 percent more than bulk (GIR price check).

Posted cypress mulch prices per cubic yard, October 2026
  1. Gaston, Fla. (blend)32
  2. Taylor's, S.C.45
  3. Cummin, Ga.48
  4. Ohio Mulch, Ohio49.99
  5. Mr. Mulch, Ohio (bags)74.25

Source: GIR price check, Oct. 18 and 30, 2026 Pickup prices before delivery and tax. Mr. Mulch bag price $5.50 per 2 cu ft converted at 27 cu ft per yard.

Show the numbers
Price per cubic yard
Gaston, Fla. (blend)32
Taylor's, S.C.45
Cummin, Ga.48
Ohio Mulch, Ohio49.99
Mr. Mulch, Ohio (bags)74.25
SellerLocationProductPosted pricePer cubic yardChecked
Gaston MulchGainesville area, Fla.Cypress Blend Mulch$32.00 a cu yd$32.002026-10-30
Taylor’s Landscape SupplySummerville, S.C.Natural Cypress$45.00 a cu yd$45.002026-10-18
Cummin Landscape SupplyAtlanta area, Ga.100% Cypress Mulch$48.00 a cu yd$48.002026-10-30
Ohio MulchColumbus area, OhioPlaymat 100% Pure Cypress Chips$49.99 a cu yd$49.992026-10-18
Mr. MulchColumbus, OhioCypress Mulch, 2 cu ft bag$5.50 a bag$74.252026-10-30
Pickup prices before delivery and sales tax; bag converted at 27 cu ft per yard. Taylor’s and Ohio Mulch figures are from our October 18 survey (their pages rate-limited scripts on October 30). Download the dataset: cypress-mulch-pros-and-cons-2026.csv.

A 200 sq ft bed at 3 inches needs 200 x 3 / 324 = 1.85 cubic yards, or 25 two-cubic-foot bags; the 2-year top-up of about 1 inch replaces the third of a layer the Florida settling trial lost (FR052). Every other mulch type is priced in our mulch cost survey.

Mulch for a 200 sq ft bedPrice usedFirst fill, 3 inTop-up, 1 in every 2 yearsSource
Cypress, bulk median$46.50 a cu yd$86.11$28.70GIR check
Cypress, bulk low (cypress blend)$32.00 a cu yd$59.26$19.75Gaston Mulch
Cypress, 2 cu ft bags$5.50 a bag$137.50$49.50Mr. Mulch
Pine bark, bulk median$47.50 a cu yd$87.96$29.32GIR survey
Undyed hardwood, bulk median$40.00 a cu yd$74.07$24.69GIR survey
Cubic yards = area x depth in inches / 324. First fill 1.85 cu yd (25 bags); top-up 0.62 cu yd (9 bags). Before delivery and tax.

What does cypress blend on a bag mean?

A cypress blend contains cypress plus other wood, and the first-named species should be the majority. Under the Mulch and Soil Council certification label rules adopted in July 2022, a Hardwood and Cypress Mulch Blend should be mostly hardwood, and any colorant forces an ingredient statement listing inputs by volume (MSC Ingredient Label Guidelines). Uncertified bags carry no such rule; color details are in our mulch color guide.

Mulch and Soil Council label guideline text on hardwood and cypress blends, highlighted
Screenshot Mulch and Soil Council label rules: in a Hardwood and Cypress Mulch Blend, hardwood should be the majority and cypress the minority. Source: Mulch and Soil Council, Ingredient Label Guidelines (adopted July 2022), accessed October 2026.

What can you use instead of cypress mulch?

The closest replacements for cypress mulch are pine bark, which matched cypress for settling and decay, and melaleuca, which settled least and was the termites’ least-preferred mulch in the Florida trials. Eucalyptus and utility chips decayed 21 and 32 percent in a year, so they need topping up sooner (Duryea et al., 1999; Duryea et al., 1999).

MulchWhere it comes fromDepth left after 2 years (of 9 cm)Termites (UF lab)Source
CypressBaldcypress and pondcypress, mill residue or whole trees6 cmEaten like sapwoodFR052; Duryea 1999
MelaleucaRemoval of Melaleuca quinquenervia, a federal noxious weedAlmost 7 cmLeast preferred7 CFR 360.200; FR052
Pine barkPine pulp and lumber mill by-product6 cmEatenFR052; UF News 1996
EucalyptusEucalyptus grandis wood, often plantation grownAbout 5 cmEaten, more than melaleucaFR052; Maggard 2012
Pine strawSlash pine needles1 cmEatenFR052
Utility or arborist chipsTree-care prunings (oak, cherry, some cedar and pine)About 5 cmEaten most in Experiment 1FR052; Duryea 1999
All 6 were tested side by side near Gainesville, Fla., in the UF/IFAS mulch series (1999).

Should you use cypress mulch?

Use cypress mulch only if you can confirm it is mill residue or from a managed source and you want slow decay at a low price; otherwise pine bark matches its settling and decay for about $1 more a yard. Skip it near foundations in termite country and in Florida yards following UF/IFAS guidance (FFL Principle 4; FR052).

If your situation isDo thisWhy (source)
You follow Florida-Friendly Landscaping guidanceUse melaleuca, pine straw or eucalyptusUF/IFAS does not recommend cypress mulch (FFL Principle 4)
The bag does not say mill residue or name a managed sourceBuy pine bark insteadSame 6 cm depth after 2 years and 3% to 7% yearly decay (FR052)
The bed is within 12 in of a slab in termite countryAny mulch, under 2 in deep; keep 6 in of slab showingTermites ate cypress mulch like sapwood (IN651; LSU AgCenter)
You want the slowest-settling mulchMelaleuca, then cypress or pine barkAlmost 7 cm vs 6 cm left of 9 cm (FR052)
Cypress costs more than about $48 a yard locallyUndyed hardwood at a $40 median does the same jobWeed counts did not differ by mulch type (Duryea 1999)
You are buying a cypress blendRead the ingredient statement; the first-named wood is the majorityMSC label guidelines, July 2022
You want heartwood termite resistanceDo not pay for bagged cypress for that reasonToday’s mulch has little or no heartwood (Duryea 1999)
Thresholds come from the cited trials and extension publications; local conditions can change the right pick.
Should this bed get cypress mulch?
  1. 1Is the yard in Florida and following Florida-Friendly Landscaping guidance?

    YesUse melaleuca, pine straw or eucalyptus instead.

    NoGo to the next question

  2. 2Is the bed within 12 inches of a slab foundation in termite country?

    YesAny mulch under 2 inches deep, with 6 inches of slab visible. Cypress gives no termite protection.

    NoGo to the next question

  3. 3Does the bag or seller confirm mill residue or a managed source?

    Yes

    NoBuy pine bark: same 6 cm depth left after 2 years.

  4. 4Is cypress more than about $48 a cubic yard where you buy?

    YesUse undyed hardwood ($40 median) or pine bark ($47.50).

    NoCypress is a reasonable pick: spread 2 to 3 inches and add about 1 inch every 2 years.

Source: UF/IFAS FFL Principle 4; UF/IFAS IN651 and FR052; Duryea et al. 1999; GIR price check Oct. 2026

How we compiled this

We read 15 primary documents in October 2026: 4 peer-reviewed mulch, termite and fire studies, the USDA Forest Service cypress inventory review, the USDA Wood Handbook, the Louisiana Science Working Group report, 4 UF/IFAS and LSU AgCenter extension publications, the Mulch and Soil Council’s label guidelines and cypress statement, 7 CFR 360.200 and Lowe’s wood sourcing policy. Prices are 5 posted cypress listings at supply yards, 3 re-checked on October 30, 2026. No mulch was tested for this page, and retailer pledges come from coalition releases.

QuestionShort answerBasis
Lasts long?Yes: 6 of 9 cm left after 2 years, tied with pine barkUF/IFAS FR052
Repels termites?No: 11% eaten in 3 weeks, like sapwoodDuryea et al., 1999
Acidic?Mildly: soil pH 5.0 to 4.6 in a yearDuryea et al., 1999
Sustainable?Region-dependent: south Florida cut 0.6x growthUSDA Forest Service, 2009
Price?$46.50 median bulk; $5.50 per 2 cu ft bagGIR check, Oct. 2026
Recap of the figures above.

Frequently asked questions

Is cypress mulch good?

Cypress mulch performs well in a bed: it lost only 3 to 7 percent of its weight in a year and kept 6 of 9 cm of depth after 2 years in Florida trials. It does no better than pine bark on those measures, it does not repel termites, and UF/IFAS advises against it because of wetland harvesting. Choose it only from a source you can confirm.

Why is cypress mulch bad?

The case against cypress mulch is mostly sourcing. Bald and pond cypress grow in wetlands that regrow unreliably, with removals exceeding growth in south Florida (0.6 times) and North Carolina (0.8) in 2008 Forest Service data. The bagged product is also mostly sapwood, so termites eat it about as readily as other wood mulch.

Does cypress mulch float or wash away?

It can on slopes and in drainage paths. Cypress mulch had a bulk density of 0.10 g per cubic centimeter in the Florida trial, lighter than pine bark at 0.11 and melaleuca at 0.14, and UF/IFAS staff reported in 1996 that it washes away in rain. Use a coarser grade or edging where water runs across the bed.

Is cypress mulch safe for vegetable gardens?

Cypress mulch had the mildest effect on seed germination of 6 mulches tested in Florida, and soil under it fell only from pH 5.0 to 4.6 in a year. It also had the lowest nutrient content, so it adds little to the soil as it breaks down. Keep it on paths and around transplants rather than over seeded rows.

Is cypress heartwood mulch worth paying more for?

Only if the heartwood is real. Termites ate under 3 percent of cypress heartwood in a 3-week University of Florida test, but the same authors found that bagged cypress mulch came from young trees with little or no heartwood. Ask the seller where the wood came from, such as reclaimed lumber or old-growth mill offcuts, and ask for it in writing.

Sources

  1. M.L. Duryea, J.B. Huffman, R.J. English and W. Osbrink (University of Florida), Will Subterranean Termites Consume Landscape Mulches?, Journal of Arboriculture 25(3):143 to 150, May 1999. Accessed October 2026.
  2. M.L. Duryea, R.J. English and L.A. Hermansen (University of Florida), A Comparison of Landscape Mulches: Chemical, Allelopathic, and Decomposition Properties, Journal of Arboriculture 25(2):88 to 97, March 1999. Accessed October 2026.
  3. UF/IFAS Extension (M.L. Duryea), Landscape Mulches: How Quickly Do They Settle?, FOR 69/FR052, 1999, reviewed 2006. Accessed October 2026.
  4. Oklahoma State University (A.O. Maggard and others), Tree-based Mulches Influence Soil Properties and Plant Growth, HortTechnology 22(3):353 to 360, June 2012. Accessed October 2026.
  5. USDA Forest Service (M.J. Brown), Evaluating Cypress Sustainability: FIA Data In the Hot Seat, Proceedings RMRS-P-56, 2009. Accessed October 2026.
  6. USDA Forest Products Laboratory, Wood Handbook, FPL-GTR-282, Chapter 14, Table 14-1, 2021. Accessed October 2026.
  7. Governor’s Science Working Group on Coastal Wetland Forest Conservation and Use (Louisiana), Conservation, Protection and Utilization of Louisiana’s Coastal Wetland Forests, final report, April 30, 2005. Accessed October 2026.
  8. UF/IFAS Florida-Friendly Landscaping Program, Principle 4: Mulch, page modified April 2, 2026. Accessed October 2026.
  9. University of Florida News, Cypress: From Wetlands and Wildlife Habitat to Flowerbeds and Front Yards, April 1996. Accessed October 2026.
  10. UF/IFAS Extension (S.W. Vince and M.L. Duryea), Planting Cypress, Circular 1458, 2004. Accessed October 2026.
  11. UF/IFAS Extension, The Facts About Termites and Mulch, ENY-832/IN651, 2006. Accessed October 2026.
  12. LSU AgCenter (D.R. Ring), Integrated Pest Management of Termites in the Landscape, accessed October 2026. Accessed October 2026.
  13. B.K. Steward, T.D. Sydnor and B. Bishop, The Ease of Ignition of 13 Landscape Mulches, Journal of Arboriculture 29(6):317 to 321, 2003. Accessed October 2026.
  14. University of Nevada Cooperative Extension, Combustibility of Landscape Mulches, SP-11-04, 2011. Accessed October 2026.
  15. Mulch and Soil Council, Ingredient Label Guidelines for MSC Certified Mulch, adopted July 2022. Accessed October 2026.
  16. Mulch and Soil Council, Is cypress mulch sustainable?, accessed October 2026. Accessed October 2026.
  17. Gulf Restoration Network (now Healthy Gulf), Wal-Mart Says No to Louisiana Cypress Mulch, press release, September 6, 2007. Accessed October 2026.
  18. Gulf Restoration Network (now Healthy Gulf), Save Our Cypress Campaign Update, Fall 2008, November 24, 2008. Accessed October 2026.
  19. Lowe’s, Lowe’s Wood Sourcing Policy, accessed October 2026. Accessed October 2026.
  20. eCFR, 7 CFR 360.200, Designation of noxious weeds, current as of October 2026. Accessed October 2026.
  21. Gaston Mulch, Taylor’s Landscape Supply, Cummin Landscape Supply, Ohio Mulch, Mr. Mulch, Posted cypress mulch prices (see dataset), checked October 18 and 30, 2026. Accessed October 2026.

This page is general information. Termite control and pesticide decisions belong to a licensed pest control operator; confirm local rules before treating soil near a foundation.