All-Purpose Organic Fertilizer 4-2-5 | Gentle, Steady Feeding

All-Purpose Organic Fertilizer 4-2-5 | Steady, Gentle Feeding

The Lawn Medic | Organic fertilizer providing slow, balanced nutrition for lawns and gardens.

★★★★★ 4.8 stars on over 5,000 orders

All-Purpose Organic Fertilizer 4-2-5 | Steady, Gentle Feeding

$29.00

"Our lawn looked great with The Lawn Medic's products so we thought we'd try their plant products as well, and everything is looking better than ever!" - Samantha K.

Bag Size: 2kg

2kg
5kg
10kg

Product variants

A gentle organic feed you can use almost anywhere. This 4-2-5 blend delivers steady nutrition for houseplants, gardens, and beds—supporting healthier growth without harsh spikes.

Best For

Routine feeding, organic gardeners, and anyone who wants a safe, dependable fertilizer for many plant types.

What Makes It Different

This stands out because it provides slow, gentle nutrition that’s much harder to overdo than quick synthetic feeds. Organic sources rely on microbial breakdown, which naturally smooths out nutrient release. That means steadier growth, better soil improvement over time, and fewer “boom-bust” cycles. It’s ideal for homeowners who want dependable feeding and soil building without pushing soft, weak growth.

Application Rate

12 kg per 1,000 sq ft for lawns. 1-2 kgs per 100sqft for gardens. Apply up to once per month.

Minimum Guaranteed Analysis

• Total Nitrogen 4% (Water Soluble 3.2%, Water Insoluble 0.8%)
• Available Phosphate (P2O5) 2%
• Soluble Potash (K2O) 5%
• Calcium 4.5%
• Magnesium 1%
• Sulfur 2.3%

Product Details

NPK | 4-2-5
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.

Pairs well with

In stock! Ships within 1-2 business days.

Expedited shipping on all orders.

Only professional grade fertilizers.

30-Day Return Policy

Why This Fertilizer?

Organic fertilizers provide a slow and steady source of nutrients that support plant growth without the rapid surges associated with synthetic fertilizers. As organic materials break down in the soil, they release nutrients gradually while improving soil structure and microbial activity. This helps build healthier soils over time while supplying plants with the nutrients they need for steady growth.

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.