1. (1) It is unlawful for any person, firm, or corporation to sell, offer, or expose for sale, or distribute in Utah any agricultural, vegetable, flower, tree, and shrub seeds, or seeds for sprouting for seeding purposes that:

   1. (a) contain, either in part or in whole, any prohibited noxious weed seeds:

      1. (i) prohibited noxious weed seeds are the seeds of any plant determined by the department to be injurious to public health, crops, livestock, land, or other property and that are especially troublesome and difficult to control; and

      2. (ii) Utah prohibited noxious weed seeds are indicated in Table 1; or

         TABLE 1PROHIBITED WEED SEEDSCOMMON NAMESCIENTIFIC NAMEBermudagrass*Cynodondactylon *Beancaper, SyrianZygophyllum fabagoBindweed or wild morning-gloryConvolvulus spp.Blueweed or vipers buglossEchium vulgareBroom, ScotchCytisus scopariusBugloss, smallAnchusa arvensisCamelthornAlhagi maurorumCinquefoil, sulfurPotentilla rectaCogongrassImperata cylindricaCrupina, commonCrupina vulgarisDaisy, ox-eyeChrysanthemum leucanthemumGoatgrass, jointedAegilops cylindricaGoatsrueGalega officinalisHemlock, poisonConium maculatumHenbane, blackHyoscyamus nigerHoary cress, globe-poddedLepidium draba (Cardaria draba)Hoary cress, heart-poddedLepidium chalepense (Cardaria chalepensis)Hoary cress, lens-poddedLepidium appelianum (Cardaria pubescens)HoundstongueCynoglossum officinaleKnapweed, diffuseCentaurea diffusaKnapweed, RussianCentaurea repensKnapweed, spottedCentaurea maculosaKnapweed, squarroseCentaurea virgata Subsp. squarrosa

         Knotweed, JapanesePolygonum cuspidatumLoosestrife, purpleLythrum salicariaMedusaheadTaeniatherum caput-medusaeMillet, springMilium vernaleMustard, AfricanBrassica tournefortiiMustard, elongatedBrassica elongataMustard, garlicAlliaria petiolataPepperweed, perennial or tall whitetopLepidium latifoliumPhragmites or common reedPhragmites australis ssp.Puncturevine or goatheadTribulus terrestrisOlive, RussianElaeagnus angustifoliaQuackgrassElymus repensReed, giantArundo donaxRocket, damesHesperis matronalisRue, AfricanPeganum harmalaSage, MediterraneanSalvia aethiopisSaltcedar or tamariskTamarix ramosissimaSkeleton weed, rushChondrilla junceaSorghum spp., perennial including johnsongrass and Sorghum almumSorghum spp., Sorghum halepense, Sorghum almumSpurge, leafyEuphorbia esulaSpurge, MyrtleEuphorbia myrsinitesStarthistle, MaltaCentaurea melitensisStarthistle, purpleCentaurea calcitrapaStarthistle, yellowCentaurea solstitialisSt. JohnswortHypericum perforatumThistle, CanadaCircium arvenseThistle, Scotch, or cottonOnopordum acanthiumThistle, muskCarduus nutansThistle, plumeless Carduus acanthoidesToadflax, DalmatianLinaria dalmaticaToadflax, yellowLinaria vulgarisVentenata or North African grassVentenata dubaiVipergrass, cut leafScorzonera laciniataWoad, dyersIsatis tinctoria

         * except for Washington county

   2. (b) contain restricted weed seeds in more than allowable amounts;

      1. (i) restricted weed seeds listed in Table 2 shall be allowed in crop seed; and

      2. (ii) shall not exceed a maximum of 27 seeds per pound, either as a single species or in combination.

         TABLE 2RESTRICTED WEED SEEDSCOMMON NAMESCIENTIFIC NAMEDodderCuscuta spp.HalogetonHalogeton glomeratusOat, wildAvena fatuaPoverty weedIva axillaris

2. (2) The maximum percentage of weed seeds by weight are listed in Table 3.

   TABLE 3WEED SEEDS BY WEIGHTMAX PERCENTCheat (Bromus secalinus)*2%Chess (Bromus brizaformis)*2%Japanese brome (Bromus japonicus)*2%Red brome (Bromus rubens)*2%Downy brome (Bromus tectorum)*2%*either as a single species or in combination in grass seeds.

3. (3) For any weed seed not listed in Tables 1-3 in grass, flower, or tree and shrub seeds, the maximum percentage by weight allowed is 1%. For other kinds or types of weed seeds, the maximum permitted weight is .50%.

KEY: inspections

Date of Last Change: August 22, 2023

Notice of Continuation: September 5, 2025

Authorizing, and Implemented or Interpreted Law: 4-2-103; 4-16; 4-17-103