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Heat Defense Granular 21-0-3 (12 lb)

One 12 lb bag covers up to 4,000 sq ft

LAWN PLAN EXCLUSIVE

Orange and green bag of Heat Defense Granular Fertilizer

Heat-season backup in one spread.

A 21-0-3 NPK granular fertilizer that improves water movement and moisture retention for steady greening and summer-season support, in one easy spread.

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LAWN PLAN EXCLUSIVE

Orange and green bag of Heat Defense Granular Fertilizer

Meet the granular built for hot, dry days

Exclusively available only in Sunday Lawn Plans

When temps rise and rain dips, this blend keeps your lawn on track. Premium ingredients support healthy growth and greener color, while the added surfactant helps water move into soil and reach roots more evenly, especially in arid regions. We also added leaf compost to support healthier soil. (Bet you didn’t know granular did that.)

One spread. One watering. Greener grass made simple. (We kept it humble. Your lawn won’t.)

The good stuff inside

  • Zero pesticide fertilizer —everything you need, nothing you don't
  • Universally loved by climates and grasses
  • Heat stress tolerance from potassium
  • Steady growth and green-up with nitrogen, calcium and sulfur
  • Builds organic matter from recycled leaf compost

How to use

Fill the spreader. Spread evenly for full coverage. Water in. Let dry. Go brag.

How soon will I see results with Heat Defense Granular?

With good moisture, you should notice a greener, thicker lawn in about 1 to 2 weeks.

Is Heat Defense Granular safe for all grasses?

Sure is. While designed with the arid West in mind, this product can be used on any lawn or grass type.

When should I apply Heat Defense Granular?

Late spring is prime time, right before summer heat. You can also use it ahead of a forecasted dry spell.

Will Heat Defense Granular let me water less?

No. It improves water movement and soil moisture behavior but does not reduce irrigation needs. To reduce watering needs, add Sunday’s Drought Defense into your normal routine. You can use it alongside any Sunday lawn fertilizer, liquid or dry.

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