Hardy & Water-Saving Perennial Ryegrass

Rainwater is a remarkable Turf Type Perennial Ryegrass, tough enough to handle high traffic and resist dollar spot, while also proving to be drought-tolerant, achieving the rigorous standards of TWCA – the Turfgrass Water Conservation Alliance.

Well-suited for both new sod and overseeding, Rainwater has a demonstrated ability to serve a wide range of customers’ needs – from the sports turf manager and golf superintendent to the professional landscaper and homeowner.

Call us today to learn how Rainwater is breaking new ground!

Key Benefits

  • Drought-Resistance/Water Savings
  • Traffic Wear Resistance
  • Dollar Spot Resistance

In a 2011 NTEP trial, Rainwater was in the top 10% of Perennial Ryegrasses studied for traffic wear resistance (at Blacksburg). And again in a 2012 NTEP trial, Rainwater was rated in the top 10% for turfgrass quality.

twca-logo-final-rWhat makes these superior rankings unique is Rainwater’s qualification by the Turfgrass Water Conservation Alliance (TWCA). The protocols for TWCA qualification are highly demanding, requiring that water-starved grass maintain green covering through a series of drought simulations. Acceptance of this two-year protocol is only available after the organization has received two year’s of independent third-party data verifying the turfgrass qualifies for testing.

Rainwater is also part of Turf Merchants’ water-saving Aqua Wise® program.

As TMI developed the Rainwater seed, we also sought to provide resistance to a common turfgrass problem: Dollar Spot. A 2011 NTEP trial demonstrated Rainwater’s substantial resistance to the disease, providing additional peace-of-mind to your customers.


Rainwater is a TWCA qualified and Blue Tag certified grass seed ideal for sports field, golf and landscaping applications, including new seeding and overseeding.

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