Which MARPHYL Soil Enhancer / Fertilizer / Plan Food should I buy?

  MARPHYL soil enhancers are OMRI Organic Certified plant boosters made from up to 80 species of wild marine phytoplankton grown and harvested on Vancouver Island, Canada. They’re naturally rich in nitrogen, potassium, and phosphorus, and are designed to support healthier plants and soil while staying eco-friendly, non-GMO, runoff safe, pet safe, 100% natural, and non toxic. 

The lineup includes an all-purpose formula plus targeted options (like extra Phosphate, CalMag, or Minerals) so you can choose the best match for your growing goals.

Choosing the right formula is step one — but consistency is where the results happen. Here's a simple approach to building MARPHYL into your growing routine.

Start with the All-Purpose. If you're new to MARPHYL, begin with the All-Purpose formula at a 1:20 dilution, applied every two weeks. Give it 3–4 weeks before drawing conclusions — you're building a foundation, not looking for an overnight fix.

Let your plants guide you. After a few weeks, you'll notice where your garden wants more targeted support. Yellowing leaves on your tomatoes? That's Cal-Mag territory. Plants heading into flower? Reach for Phytoplankton+Phosphate. Soil that's been intensively grown for years? Minerals will help restore what's been depleted.

Routine matters more than intensity. Regular, moderate applications outperform occasional heavy feeding every time. Bi-weekly applications at the correct dilution ratio is all your plants need — there's no benefit to doubling up.

Document what you observe. Take a photo of your plants before you start and again after a month. Note changes in leaf colour, growth rate, and overall vigour. This turns your garden into a feedback loop that helps you refine your approach season after season.

Let MARPHYL complement your whole garden ecosystem. Marine phytoplankton works with nature. Pair it with compost, good watering practices, and healthy soil management — it enhances what you're already doing rather than replacing it.

All our Soil Enhancers are:

• Made from up to 80 species of wild marine phytoplankton 
• Product of Vancouver Island, Canada 
• 100% organic and OMRI Certified
  
• Non-GMO 
• Eco-friendly 
• Runoff safe 
• Pet safe 
• 100% natural 
• Non toxic
• Naturally rich in nitrogen, potassium, and phosphorus
• Plant-based

Which MARPHYL Soil Enhancer should I buy?

Product	What it is	Best for	When to use	How to mix	NPK
MARPHYL Original	All-purpose soil enhancer	Indoor & outdoor plants, gardens, lawns, orchids, hydroponics	Anytime for general plant health	1:20 (incl. hydroponics)	0.19-0.01-0.03
MARPHYL +Phosphate	Phytoplankton enhancer with added phosphate	Flowering plants, fruiting crops, root vegetables, hydroponics (bloom)	Mid–late growth, flowering & fruiting stages	1:20 (incl. hydroponics)	0.19-0.24-0.03
MARPHYL +CalMag	Phytoplankton enhancer with calcium & magnesium	Vegetables, orchids, tropicals, fruit trees, hydroponics	Early growth; spring or post-bloom for trees	1:20 (incl. hydroponics)	0.19-0.01-0.03
MARPHYL +Minerals	Mineral-rich phytoplankton concentrate	Leafy greens, root crops, fruit trees, berries, hydroponics	Throughout growth cycle; spring or post-bloom for trees	1:25 (incl. hydroponics)	0.19-0.02-0.035

 

To read more about each product click on the links above.