Miracle-Gro Expand 'n Gro Concentrated Planting Mix, Just Add Water for up to 3X Expansion, For Container and In-Ground Use, .33 cu. ft. Expands up to 1 cu. ft.
Condition: New
Buy Now, Pay Later
As low as
$3
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Monday, Feb 2
Recently Viewed
Size: .33 cu. FT
Features
- Miracle-Gro Expand 'n Gro Concentrated Planting Mix expands up to 3X when combined with water
- This planting soil substitute feeds plants for up to 6 months
- When used with potted plants, this potting medium's all natural fibers hold up to 50% more water than traditional potting mix and release it as plants needs it
- Apply this soil amendment to in-ground gardens to make your soil up to 40% lighter and create up to 90% more air space for plant roots to thrive
- One .33 cu. ft. bag of Miracle-Gro Expand 'n Gro Concentrated Planting Mix fills two 12-inch containers or covers 4 sq. ft. of in-ground area
Description
Grow your garden with Miracle-Gro® Expand 'n Gro® Concentrated Planting Mix. This planting soil substitute expands up to 3X when combined with equal parts water, and contains fertilizer to feed plants for up to 6 months. Use this gardening product with most plant types as a potting mix for container plants or as a soil amendment for in-ground gardens. All natural fibers hold up to 50% more water than basic potting soil. In addition, it makes soil in gardens up to 40% lighter and creates up to 90% more air space for plant roots to thrive. To use in containers, fill a pot with a drain hole about 1/3 full of mix. Gradually add water and stir. After mix has fully expanded, plant as usual. When using in gardens, spread a 1" layer of planting mix over the area to be planted. Mix with the top 4-6 inches of soil before planting as usual. Water plants thoroughly to finish. One .33 cu. ft. bag of Miracle-Gro® Expand 'n Gro® Concentrated Planting Mix fills two 12-inch containers or covers four sq. ft. of garden area.
Brand: Miracle-Gro
Style: Garden,Planting Mix,Potting Mix,Potting Soil
Item Weight: 6.1 Pounds
UPC:
Product Dimensions: 15.5 x 11.5 x 3.5 inches
Item Weight: 6.06 pounds
Manufacturer: The Scotts Company LLC
Item model number: 70733430
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Feb 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: .67 cu. FT
After reading many bad reviews of this product, I couldn't help but laugh. It is a great product that I have had wonderful success in using. The bad reviews are most likely written by people who don't know how to garden. They don't understand their failure, so they blame the growing medium. I see people talking about mold. While I have not had that problem with this product, that is something you can experience with any growing medium. It's up to the grower to control the conditions to prevent mold. As far as plastic in the bag... I have seen that in practically all brands of soil out there. It's no big deal. It does not hurt anything. What matters to me is ease of use, and growing success. I have experienced both with this product.
...
show more
Reviewed in the United States on March 3, 2021 by rick130
Size: .33 cu. FT
I have a fiddle leaf that I repotted using this “soil” a year ago and it went from being a temperamental fiddle leaf to being the nicest most shinny big leaf producing nice plant, all the attitude went away! I guess all I needed to do is give it the best soil ever! In all seriousness though, I love how this comes in small light-weight bags and it is less messy than regular soil. I also love how you are able to tell very easily when the solids drying out because of the color. I just repotted a big fiddle tree that is trying to die. I got that one as a gift and I figured I would repot it using this soil as a last resort. I will update this review with the outcome.
...
show more
Reviewed in the United States on August 29, 2025 by Karydragon
Size: .33 cu. FT
Works as described ... good product
Reviewed in the United States on July 14, 2025 by David M
Size: .33 cu. FT
First thing I read regarding this product's qualities: Great substitute for garden soil or potting mix. After purchasing 5 bags of this product and planting my 3 ea./20" containers I've learned that this is a soil additive. Everything is already planted and in place. Now all I can do is cross my fingers and hope my plants thrive. How misleading to advertise as a soil substitute! Hoping to ensure healthy plants I have combined a topping of chopped hay, Organic Worm Castings - All Natural Soil Amendment, Soil Builder, and Fertilizer, 3 Pound Bag, black dirt and no float Cyprus mulch. Also mixed hay mulch in the planting mix as well. Added Jobe's 06328 Bone Meal Fertilizer Spikes, 50, Natural and utilized Safer Brand 5450-6 Garden Fungicide Ready to Use 32 Ounces as a safety upgrade to stop any mulch mildew, etc. Now what to do next year as these are perennials and I do not have available free dirt of my own as I live in an apartment. What I should have done in the first place is purchase black dirt and combined that with this product. Ugh, always one step forward and 50 steps back. Hoping that my patio garden has not become my money pit :( I have begun my begonia bulbs indoors with the assistance of the Grow Light for Indoor Plant Growing LED Grow Light 9 Dimmable Settings, Horizontal Plant Growth Lamp for Indoor Plants with Red/Blue Spectrum, Adjustable Gooseneck, 3/9/12H Timer (Red). Included the Amazon product headings where applicable. Planted 04/29 and the growth rate varied while the very last one of 5 appeared on 5/30/2021. Next step is hang outdoors once the weather stabilizes with constant warmer nights, etc and wait for the blooms of my Non-Stop Begonia Red in my 14" Resin Woven Hanging Basket, Espresso Brown, Hangings Basket. My patio holds my hydrangea, dianthus, and these red begonias. Will update as the summer continues.
...
show more
Reviewed in the United States on May 24, 2021 by dksquat dksquat
Size: .33 cu. FT
Pretty neat stuff
Reviewed in the United States on October 21, 2025 by Tammy Brown
Size: .67 cu. FT
The **Miracle-Gro Expand 'n Gro Concentrated Planting Mix** is an innovative product designed to expand when water is added, providing more planting volume from a smaller bag. While it has some benefits, such as convenience and the ability to expand up to three times its size, there are also a few **negative aspects** that might be worth considering before purchasing. Here’s a breakdown of the drawbacks: ### **Challenges and Negatives** #### **1. Uneven Expansion** One of the most common issues with the **Expand 'n Gro** mix is its **uneven expansion**. While the product claims to expand up to 3 times its size, some users have reported that the expansion isn’t consistent throughout the mix. In some cases, certain portions of the mix will expand well, while other areas remain more compacted, leading to **uneven coverage** and potential gaps in your containers or garden bed. #### **2. Needs a Lot of Water** While the idea of adding water to expand the mix is convenient, the **amount of water needed** can be quite substantial. If you're dealing with a larger garden or many containers, the amount of water required to fully expand the product can be excessive. In areas where water is scarce or expensive, this could become a **costly and inconvenient** factor. #### **3. Initial Texture and Dryness** Some users have found that the product can be **very dry** and almost hydrophobic when first unpacked, making it challenging to fully wet and activate. This dryness can result in uneven watering, and you may need to mix or agitate the soil manually to ensure that all of it gets hydrated properly. The initial texture is also quite **coarse**, which may not be suitable for more delicate plants or seeds that require a finer growing medium. #### **4. Requires Frequent Rehydration** Once the product is fully expanded, you’ll need to **keep it hydrated** to maintain its volume and effectiveness. If the mix dries out, it tends to **shrink and harden**, which can negatively impact root growth and moisture retention for your plants. This frequent need for rehydration can be a hassle, particularly in hot, dry climates where the soil mix might dry out more quickly than traditional potting mixes. #### **5. Limited Nutrient Content** While **Miracle-Gro** is known for including nutrients in its products, the **Expand 'n Gro mix** has a **limited supply of nutrients** compared to some of their other potting mixes. The concentrated mix is designed to improve soil structure and moisture retention, but it doesn't have the same long-term nutrient content as some other planting mixes. This means you’ll likely need to **supplement with fertilizers** sooner rather than later, which could add to the overall cost and effort. #### **6. Not Ideal for All Plants** Due to its coarse texture and potential issues with drying out, the **Expand 'n Gro** mix may not be suitable for all types of plants. For example, plants that prefer a finer, consistently moist soil may struggle to thrive in this mix unless you’re diligent about watering and maintaining the soil's moisture levels. It may also not be ideal for seedlings or young plants that require a more delicate environment. #### **7. Cost** While the concept of getting more soil volume through expansion is appealing, the **price per bag** can seem high compared to traditional potting mixes that don’t require expansion. When you factor in the need for frequent watering and potential supplements for nutrients, the overall **cost-effectiveness** of this product becomes a bit questionable, especially for larger gardening projects. ### **Final Thoughts** While the **Miracle-Gro Expand 'n Gro Concentrated Planting Mix** offers convenience and space-saving benefits, it does come with its share of challenges. The **uneven expansion**, **dry texture**, and **need for constant hydration** can make it more labor-intensive than initially expected. Additionally, the limited nutrient content and higher cost compared to traditional planting mixes may make it less appealing for gardeners who want a low-maintenance, all-in-one solution. For those willing to invest the time in maintaining proper moisture levels and supplementing nutrients, it can be a helpful product, but for others, a more conventional potting mix might be a better option.
...
show more
Reviewed in the United States on September 18, 2024 by Kayla
Size: .33 cu. FT
very fluffy, seems to hold water longer than regular container filler. good value for the money and mixes with regular garden soil easily.
Reviewed in the United States on June 29, 2025 by Lin
Size: .33 cu. FT
Miracle Gro works wonders with my garden
Reviewed in the United States on September 3, 2025 by Juanita Salazar