Organic Green-Up Fertilizer 11-0-5 | Colour Boost for Lawns

The Lawn Medic | Organic nitrogen fertilizer that enhances turf colour and density.

★★★★★ 4.8 stars on over 5,000 orders

Organic Green-Up Fertilizer 11-0-5 | Colour Boost

$49.00

Organic SGN 200-250 Regular Prill Made for Canada Pro Grade Spreader Ready

"The fertilizer worked amazing. Lawn was super green all year. Will definitely be purchasing again." - Brent S.

Bag Size: 2kg

2kg
5kg
10kg

Product variants

Coverage (selected size)

Covers up to 1470 sq ft

In stock, ready to ship

Pickup available at Pickup Location UPS STORE

Usually ready in 24 hours

100% Organic

A completely organic fertilizer that provides your lawn important nutrients without synthetic products. It can be used individually or part of a full season organic program.

Organic green-up without the harsh surge. This 11-0-5 blend supports steady colour and healthier growth, while potassium helps turf handle stress—great for regular feeding and soil-friendly programs.

11-0-5

NPK

Reg - SGN 200-250

Prill Size

Granular

Application Type

Slow - 100% Organic

Nitrogen Release

Best For

Organic-minded homeowners, routine maintenance, and lawns that need colour without aggressive push.

What Makes It Different

The standout feature is that it provides a strong green-up response while still being organic-based. Instead of quick soluble nitrogen alone, it supports steadier feeding and soil improvement through organic nutrient breakdown. It’s a good fit for homeowners who want noticeable colour improvement but prefer a more sustainable feeding style that supports long-term soil health.

Application Rate

2.7kg (6lbs) to 5.5kg (12lbs) per 1000sqft per application

Minimum Guaranteed Analysis

• Total Nitrogen (N) – 11%
• Soluble Potash (K₂O) – 5%
• Calcium (Ca) – 1.3%
• Amino Acids - 9.2%

Product Details

NPK | 11-0-5
Nitrogen Release | Slow | 100% All Natural Slow Release Nitrogen
Prill Size | Mini Prill | SGN 150 | Mini sized prills for more even applications
Application Type | Granular | Apply with any lawn spreader

Storage & Handling & Safety

Storage

We recommend keeping your seed in a cool dry location, especially after opening. This helps to maintain a high germination rate for an extended period of time.

Handling

Seed is safe to handle. However if you are sensitive to airborne particles you may want to wear a mask when adding your seed to a spreader for instance.

Shipping & Returns

Shipping

We ship Canada wide. Most orders are shipped with UPS. Canada Post is used for some locations.

Shipping on Grass Seed is always free. Shipping on fertilizers is calculated based on weight.If your order combines seeds and fertilizers you will only be charged for the weight of the fertilizer. We do our best to offer a balance between fast shipping and reasonable shipping rates.

We strive to ship all orders within 24hrs (48hours max).

Please reach out to use if you have any questions.

Returns

All of our products can be returned within 30 days as long as it is unopened/unused.

If you have a concern with your product after opening it please reach out to use as we always work to find a solution and rectify any issues.

Share:

Share

Shipping Credit on Fertilizers

Spend $200, Get $20 Shipping Credit
Spend $300, Get $30 Shipping Credit
Spend $400, Get $40 Shipping Credit
Spend $500, Get $50 Shipping Credit

Valid on individual fertilizers only. Grass seed is always free shipping.

Pairs well with

In stock! Ships within 1-2 business days.

Expedited shipping on all orders.

Only professional grade fertilizers.

30-Day Return Policy

Organic Green-Up Fertilizer 11-0-5 | Colour Boost

2kg

$49.00

A Better lawn starts here

Don't Take Our Word For It

See what our happy customers are saying about how The Lawn Medic helped their lawns.

See All Our Reviews

Expedited Shipping on All Orders

Why This Fertilizer?

Organic nitrogen fertilizers provide plant nutrition while improving soil health. The nitrogen in this formula supports turf colour and growth, while the organic components help build soil structure and microbial activity. Unlike quick-release fertilizers, organic sources release nutrients gradually. This helps maintain steady lawn growth and supports long-term soil fertility.

Technical Details

Nitrogen availability is one of the most important factors affecting turfgrass colour and density. Nitrogen contributes directly to chlorophyll production, the pigment responsible for the green colour of healthy turfgrass. Research conducted through the Purdue University Turfgrass Science Program demonstrates that nitrogen fertilization significantly improves turf colour and canopy density.

Organic nitrogen sources release nutrients gradually through microbial activity in the soil. This process provides steady plant nutrition while supporting soil biological health. Studies summarized by the University of Guelph Turfgrass Institute indicate that organic fertilizers can improve soil organic matter levels and enhance long-term soil fertility.

See the difference

Geoff D.

"I used seed and fertilizer from The Lawn Medic in the Spring. The transformation over about 5 weeks was incredible. The pictures tell the story. The new lawn came in thick and green and it has stayed that way all year. No weeds. Strong growth."

Testimonials

"Best result I've ever had in reseeding my lawn. No more big box branded lawn seed with pathetic results. Next fall will be the backyard's turn."
— Jose C.

"Lawn looks freaking awesome in December 😄😄 Will definitely be ordering again in the spring."
— Daryl F.

"Despite this summer’s heat and drought, the lawn stayed healthy. The seed quality is noticeably better than what I’ve bought from big-box stores."
— Ryan C.

FAQs

Please read our FAQs page to find out more.

What makes your products better?

All of our products, including our seeds and fertilizers, were developed for professional uses. This means that you are truly getting the best of the best when it comes to lawn care products. Forget the big box store products and try what the pros use.

Do you provide guides on how to use your products?

Yes, of course we do. Take a look at our Guides page. We will be adding more guides and helpful tools soon as well.

Can you help me decide what I need?

Yes! We are here to help. Contact us anytime with your questions and we will get back to you within 1-2 days with some suggestions. We also have our Guides page which can answer some questions, and we have more helpful tools coming soon.

How can I get your products?

We ship Canada wide by UPS and Canada Post (it depends on the location). Every shipment is expedited to arrive as soon as possible, and ships within 1-2 days. We also have a pickup location in Burlington, Ontario.