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Herb Garden Gift Collection

Herb Garden Marker Durability Test

Earthmarks herb garden markers are completely weatherproof, and to prove it, Jackson conducted a year-long durability test.

Most flower pots are made of terra cotta clay, which is very porous and readily absorbs water.  When the water freezes, it expands, causing minute cracks in the clay.  After repeated freeze/thaw cycles, the cracks get larger, and eventually cause the entire pot to crack.  While Earthmarks herb garden markers have the same attractive color and appearance of terra cotta, they are made of a much more durable stoneware clay; they are far less absorbent and are unaffected by freeze/thaw weather cycles.  We even proved it in a durability test where we froze/thawed the same garden marker over 1000 times!

In this test, a round Earthmarks herb garden marker (detached from stake) was exposed to cycles of freezing and thawing to determine what effect severe seasonal weather would have on our herb garden markers.

Over a period of 1 year, the test marker was frozen (wet), then thawed, 1001 times.  In addition, the frozen marker was subjected to quick-thaw/high-temperature tests when we moved it from the freezer to the microwave oven 12 times, boiling off the water (once each month), and also from the freezer to a hot plate where it was heated until the moisture boiled off and the herb garden marker was hot and dry (also once each month).

Periodically, the herb garden marker was evaluated for damage or weakness.

The test was concluded after 1 year and 1001 freeze/thaw cycles because — well, because common sense finally prevailed and Vicki reclaimed the freezer, the microwave, and the front of the refrigerator where the tally sheet had been posted.

You can be assured that your Earthmarks herb garden markers will last for years!

TEST STATISTICS AND SPECIFICATIONS:

• Herb garden marker kept wet continuously for maximum stress
• Alternately frozen to -20° F and thawed to 70° F
• 1001 freeze/thaw cycles (almost 3 cycles per day, average)
• 12 freeze/boiling cycles from -20° F to 212° F (freezer to microwave oven)
• 12 freeze/hot plate cycles from -20° F to about 450° F
• Test lasted 1 full year
• No damage to Earthmarks herb garden marker whatsoever!

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