Wednesday, March 16, 2011

Overseeding Myths & Facts

Nutrite Lawn Care Seminar
Cathy Wall, Quality Seed

Strategy- what is our objective?
Is it thin? Renovate
To thicken turf? Rejuvenate

Site
Soil
Fertility
Moisture
Sun/shade
Competition from other plants

Species
Establishme
Growth habit
Texture
Mtce- low or high
Competitive ability

Kentucky Bluegrass
Slow initial establishment-28 days
Rhizominous growth
Fine texture
Sunny environment, winter hardy
High maintenance
2.2 million seeds per lb

Fine fescues
Rapid establishment
Germination 21 days
Rhizome (creepin red) or basal tillering
Fine texture
Adaptable to soils fertility, moisture winter hardy
Low mtce
640,000 seeds per lb

Perennial Ryegrass
Rapid establishment- esp in existing stand
Germation in 14 days, some in 3-5 days
Tillering, stolons
Fine texture
Adaptable, winter hardy
Moderate mtce
227,000 seeds per lb

Annual Ryegrass
Coarse, medium texture
New SOS variety-to use for quick repair, finer texture darker colour
http://qualityseeds.ca/turf/ryegrasses/sos-brochure.html

New perennial ryegrass
RPR
Repairing
Will fill in more like kentucky
Darker green

Tall Fescue
Rapid
Germinates 14 days
Texture medium

 tillering, rhizomes 
Adaptable, moderately winter hardy
Low mtce - deep roots


RTF-Rhizomatous Tall Fescue- a new self repairing lawn, Drought resistant
http://qualityseeds.ca/turf/tall-fescue/rtf.html

Endophyte enhances seed
Reduces leaf feeding lawn insects
Enhanced stress protection

When Overseeding
Perennial ryegrass is good to renovate or repair
Aggressive
Mixes in colour and texture

Adding multiple varieties
Better to provide the things to cover a wider variety of conditions.

Due to differences in seed size, seeds mixed by weight.
20% 20% 60% kentucky, fescue, perennial rye.

In a 100 lbs - 22 million Kentucky bluegrass seed, 7 million fescues, 7 million Perennial rye seeds

Micro clover- new
Not many flowers, so fits better in a lawn, but hard to get enough seed
Will be available in a few years
Grows below height of grass for most of season


www.hamiltonturfking.ca

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