
Specialty Fertilizer and Cal Mag Plus (Medium)
Best price now
66% under what the other stores charge
Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.
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Price facts
- Lowest price today: $18.96 at Amazon (checked Nov 11, 2026).
- Checked at 5 stores.
Specialty Fertilizer and Cal Mag Plus (Medium) prices at every store
- WalmartNew
In stockSold by Greenway Biotech, Inc
$55.99Free shippingChecked 28 min ago - Greenway Biotech, Inc.New
In stockReturn policy
$64.99Checked 27 min ago - Greenway BiotechNew
In stock
$55.99+ $9.99 shippingChecked 28 min ago - AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$18.96Checked 28 min ago - Midwest Grow CoNew
Availability unknown
$33.99Checked 28 min ago
Store links may earn us a commission.
Specialty Fertilizer and Cal Mag Plus (Medium) price history
Lowest price we've seen: $18.96 on Nov 11 at Amazon. Tracked across 4 stores since Nov 11.
About the Specialty Fertilizer and Cal Mag Plus (Medium)
This is our medium bundle of one of our specialty fertilizers and Cal Mag Plus 2-0-0 Concentrate.
Includes:
- One 5-pound bag of a specialty fertilizer of your choice and one 5-pound bag of Cal Mag Plus 2-0-0 Concentrate.
Choose from the following specialty fertilizers:
- Lettuce 8-15-36 Fertilizer
- Cucumber 8-16-36 Fertilizer
- Tomato 4-18-38 Fertilizer
- Strawberry 8-12-32 Fertilizer
- Pepper & Herb 11-11-40 Fertilizer
Good to Know:
- This bundle is great for hydroponic crops.
- Cal Mag Plus contains a balanced ratio of Calcium, Magnesium, and Iron, which are critical throughout all stages of growth.
- Calcium and Magnesium are necessary for the prevention of blossom end rot in tomatoes and peppers.
- When used in combination with other nutrients Cal Mag Plus functions as a catalyst to increase the uptake of essential minerals.
- Our specialty fertilizer formulas contain a balanced ratio of Nitrogen, Phosphorus and Potassium to support healthy plant growth.
- Our specialty fertilizers are heavy metal free .
- Our specialty fertilizers contain chelated micronutrients to ensure adequate nourishment for your crops.
Questions and answers
- Where is the Specialty Fertilizer and Cal Mag Plus (Medium) cheapest?
- At Amazon, for $18.96, 66% under what the other stores charge, as of our latest check.
- What do buyers say about the Specialty Fertilizer and Cal Mag Plus (Medium)?
- Rated 5 out of 5 from 2 ratings.
- Where can I buy the Specialty Fertilizer and Cal Mag Plus (Medium)?
- 4 stores we checked sell it, including Greenway Biotech, Inc., Amazon, Midwest Grow Co, Walmart.







