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Core Endurance Granular Lawn Fertilizer (2-pack)

$72 $80

(2) 12 lbs. bags covers up to 8,000 sq. ft.

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Core Endurance Granular Lawn FertilizerCore Endurance Granular Lawn Fertilizer bag on lawnCore Endurance Granular Lawn Fertilizer before and afterCore Endurance Granular Lawn Fertilizer Data SheetCore Endurance Granular Lawn Fertilizer Data SheetCore Endurance Granular Lawn Fertilizer Data Sheet

70 days of sustained growth with lower burn risk, and improved soil health over time—all without pesticides.

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$72$80

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Core Endurance Granular Lawn FertilizerCore Endurance Granular Lawn Fertilizer bag on lawnCore Endurance Granular Lawn Fertilizer before and afterCore Endurance Granular Lawn Fertilizer Data SheetCore Endurance Granular Lawn Fertilizer Data SheetCore Endurance Granular Lawn Fertilizer Data Sheet

Fertilizer for long-lasting lawn health

Core Endurance is a granular fertilizer with a 65% slow-release nitrogen designed for maximum sustained growth.

Experience up to 70 days of continuous growth with reduced burn risk, thanks to our premium 23-0-3 NPK formulation. Core Endurance enhances soil health over time with sulfur-coated urea for steady nitrogen release, potassium for improved nutrient uptake, and calcium for strong blade structure. Formulated without pesticides, this fertilizer is perfect for all grass types.

A Sunday premium selection

Enriched with potent nutrients and unique soil enhancers, our premium fertilizers outperform standard options for superior, long-lasting lawn health.

Product Features:

  • 23-0-3 NPK (Nitrogen-Phosphorus-Potassium) premium granular fertilizer
  • Provides up to 70 days of sustained growth with reduced burn risk
  • Supports healthy structure and growth
  • Improves soil health over time
  • Formulated without pesticides
  • Suitable for all grass types
  • Includes (2) 12 lbs. bag of granular fertilizer—spreader required
  • One bag covers 4,000 sq. ft.

Ingredients:

  • Sulfur-coated urea (nitrogen) for greater sustained growth
  • Potassium for plant health, stress tolerance, and improved nutrient uptake
  • Calcium and sulfur for blade structure and healthy growth
  • Leaf compost and wood ash to add organic matter to soil

Instructions:

For best results, apply early morning or late evening to a well-hydrated lawn in the spring or fall.

  1. Set your spreader to the correct setting.
  2. Apply evenly across the lawn. Recommended rate is 3 lbs./1000 sq. ft.
  3. Sweep up any product that gets onto sidewalks or other hardscapes back onto the lawn or into the bag.
  4. Water thoroughly so the product can reach the soil.

If using other Sunday products, water in fertilizer, let your lawn dry completely, then apply other Sunday products depending on application wait time.

Helpful Tips from Lawn Advisors:

How are Sunday premium fertilizers different?

Sunday's premium liquid fertilizers, previously exclusive to custom lawn plans, are highly concentrated with nutrients, soil amendments, and specialty ingredients for fast, effective results.

What grasses can I apply granular fertilizer on?

Sunday’s granular fertilizer works for all residential turfgrasses. We don’t recommend applying to centipedegrass more than twice per year, and it’s not formulated for golf course grasses like colonial bentgrass or creeping bentgrass.

When to water after granular fertilizer

Watering in granular fertilizer immediately after application helps ensure the nutrients reach the soil and the grass’s root zone, avoiding any potential lawn burn. Plus, it reduces granule movement.

Can I use granular fertilizer with liquid lawn fertilizer?

We don’t recommend using granular fertilizer alongside other fertilizers, including Sunday liquid fertilizers. Wait 6 weeks after applying granular fertilizer before applying liquid lawn fertilizer for best results.

How much lawn fertilizer will I need?

Each bag covers 4,000 sq. ft. Application based on yard size:

  • 1,000–2,000 sq. ft.: 1/2 bag
  • 2,000–4,000 sq. ft.: 1 bag
  • 4,000–6,000 sq. ft.: 1 ½ bags
  • 6,000-8,000 sq. ft.: 2 bags
  • 8,000-10,000 sq. ft.: 2 ½ bags
  • 10,000-12,000 sq. ft.: 3 bags

When is it safe for people and pets to go on my lawn after applying?

Our ingredients break down quickly and don’t persist in the environment. Once the product is watered in and your lawn dries, it’s safe for people and pets to resume activities!

Are there any US states where this is not approved for use?

This product is approved for use in all states.

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Sunday granular fertilizer products on lawn

Granular Lawn Fertilizer Instructions

Our dry granular lawn fertilizers are formulated for long-lasting growth and easy application. Learn how to apply granular lawn fertilizer correctly and get expert tips for your greenest lawn yet.

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Customer reviews

Based on 4 reviews!
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matt
Verified Buyer
Best Fall Fertilizer

After a summer with little rain we let our lawn mostly go dormant until the fall. Core endurance at the beginning of the fall season brings it right around and has it looking like the best lawn in the neighborhood. Kids and pets love playing on the beautiful lawn

Published date
10/13/23
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1
1
Paul
Verified Buyer
Core Endurance

Best ever when aerating my lawn has never looked this amazing thank you Sunday

+3
Published date
10/13/23
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2
0
James
Verified Buyer
Long Lasting Color

This was by far the best product I have put on my lawn. We have sandy soil and I had trouble getting the lawn to have that deep green look. Not only did the color look great, it thickened up some bare spots and the deep green color held strong for several weeks. I highly recommend Core Endurance.

Published date
10/14/23
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0
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Perry J.
Verified Buyer
Nice and Green

This was a great way to green up your lawn and compliments your pouch plan. I applied it in August and my yard is still nice and green.

Published date
10/12/23
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$72$80