After developing the highest quality varieties, the next step is assuring that there is quality seed production to match it.  We do this by making sure the right measures and practices are set in place for producing quality seed stock.  Next, we align our production with the finest growers, and follow up with a high focus on crop inspections to make sure expectations are met.  After harvest, we assure quality seed cleaning is taking place.

Roselawn Seed, Inc.

Ed and Tami Rose
Woodburn, OR

Roselawn was founded in 1968, and falls under the Bill Rose LLC making it one of Pure Seed’s sister companies. Roselawn is a grass seed production company with its own seed cleaning facility, and cattle ranch. Roselawn is an elite grower of Pure Seed and Pure-Seed Testing varieties.

Pictured on the left is Bill Rose’s son Ed with wife Tami and family. On horseback is Bill’s daughter Cara with husband Scott Tuggle.

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Trico Farms

Roben Arnoldus
LaGrande, OR

As one can tell from how beautiful these fields look in the summer of 2014 shows how great of a grower Roben with Trico Farms is. Roben has been growing Pure Seed varieties for years, and has a close relationship with the company.

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M&M Farming

Matt Insko
LaGrande, OR

Matt has been one of Pure Seed’s go-to foundation growers because he always delivers quality seed production.  He has been getting creative, and liking the results of a spring planted wheat cover crop with Moonlight SLT Kentucky Bluegrass in between the rows.

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Prince Seeds

Ron DeConinck & Tony Cuff
Woodburn, OR

Prince Seeds has been growing grass seed since 1953, and Ron’s father was one of the original growers with the founder of Pure Seed, Bill Rose. Prince Seeds is currently on its fourth generation of growing grass seed in the Willamette Valley. The farm currently has 800 acres of grass seed, and its own grass seed cleaning operation.

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Oregon Seed Certification

Species Factor Sample Size Pure Seed (min) Other Crop (max) Inter Matter (max) Weed (max) Germ (min)
Kentucky blue grass certified 1/4 lb 95% 0.25% 5% 0.3% 75%
sod n/a n/a 0.1% *1/3 n/a 0.02% 80%
Annual fescue certified 1/2 lb 97% 0.25% 3% 0.3% 85%
sod n/a n/a n/a n/a n/a n/a
Chewing and slender
creeping red fescue
certified 1/2 lb 97% 0.25% 3% 0.3% 85%
sod n/a 98% 0.1% *1 n/a 0.02% 90%
Meadow fescue certified 1/2 lb 98% 0.5% 2% 0.3% 85%
sod n/a n/a n/a n/a n/a n/a
Tall fescue certified 1/2 lb 98% 0.5% 2% 0.3% 85%
sod n/a 98.5% 0.1% *1 n/a 0.02% 85%
Orchardgrass certified 1/2 lb 92% 0.5% 8% 0.3% 85%
sod n/a n/a n/a n/a n/a n/a
Annual ryegrass certified 1/2 lb 99% 0.5% 1% 0.3% 90%
sod n/a n/a n/a n/a n/a n/a
Perennial ryegrass certified 1/2 lb 99% 0.5% 1% 0.5% 90%
sod n/a 98% .1% *1/2 n/a 0.02% 90%
  1. Must be free of ryegrass, orchardgrass, timothy, bentgrass, big bluegrass, poa trivialis, smooth bromegrass, reed canary grass, tall fescue, and clover. (When the base sample is one of these kinds, the species will not be considered a contaminant; i.e. ryegrass in ryegrass)2. Certification fluorescene levels and appropriate calculation will be applied when determining levels of other crop.
  2. Maximum other varieties of Kentucky bluegrass allowed is 2%; maximum allowed Canada bluegrass is 0.02%
  3. A 500-seed count will be used to determine other species of Agrostis.
  4. Must be free of dock – Rumex spp., chickweed – Cerastium spp., and Stelloria media, crabgrass – Digitaria spp., plantain – Plantago spp., black medic – Medicago lupulina, annual bluegrass – Poa annua, velvetgrass – Holcus spp., Downy Brome – Bromus tectorum, and other “All-state” noxious weed seeds, except Hawaii.