Roots Organics Formula 707 Organic Potting Soil
Best large-scale potting mix for container gardening enthusiasts.
Roots Organics Formula 707 is a ready-to-use organic potting soil expertly crafted for large container gardening. This peat-based blend, enriched with coco fiber, ensures superior water retention, minimizing the need for frequent watering. It's designed to support robust plant growth, especially for larger specimens like trees and bushes. The soil includes beneficial mycorrhizal fungi to enhance nutrient uptake and root health. Packaged in a convenient 30-gallon grow bag, it can be used directly as a planter, offering a straightforward solution for both experienced growers and enthusiastic home gardeners.
$11.99
Owner Satisfaction
4.7
/ 5
Category Rank
11
/ 1247
#11 in Soil
Price vs Category Average
-76%
Below average
Volume
3..
/ cu ft
Who it's for
- Indoor growers needing optimal root health and oxygenation
- Organic enthusiasts prioritizing clean and certified growing inputs
- Busy gardeners wanting to skip initial fertilizer applications
Who should skip it
- Gardeners with physical limitations handling heavy bags
- Propagators starting sensitive seedlings or delicate clones
- Budget-conscious growers managing large-scale operations
Performance breakdown
Moisture Retention
Coco fiber and peat blend keeps hydration levels consistently high.
Root Development
Beneficial mycorrhizal fungi actively promote stronger, healthier root systems.
Container Versatility
The integrated grow bag design simplifies planting for large specimens.
Nutrient Density
Compost and worm castings provide a robust foundation for vigorous growth.
Ease of Setup
Ready-to-use formula eliminates the need for complex soil mixing.
Drainage Balance
Optimized for moisture retention while preventing harmful water stagnation.
Key Specs
Volume
3 cu. ft.
Weight
62.95 lbs
Organic
Yes
Intended Use
Potting, Vegetable Garden, Flower Bed
Soil Type
Potting Mix, Compost, Peat Moss
Drainage Level
Retains Moisture
Moisture Retention Level
High
Primary Amendment
Compost, Worm Castings, Mycorrhizae, Coconut Coir, Peat Moss
Features
- Enhanced water retention for less frequent watering
- Ideal for large container gardening
- Includes beneficial mycorrhizal fungi
- Ready-to-use organic potting mix
- Grow bag doubles as a planter
- Peat, coco fiber, and compost blend
- Supports larger plant growth
What customers say
Customers consistently praise the exceptional quality and performance of Roots Organics Formula 707. Gardeners find this soil incredibly easy to use right out of the bag, noting that its rich, preloaded nutrient profile supports vigorous plant growth and impressive yields without immediate need for extra feeding. The consensus is that while the initial cost is higher than standard mixes, the superior results and reliability make it a worthwhile investment for serious growers seeking professional grade quality.
Know before you buy
Yes, the 30-gallon bag is designed to function as a durable planter. Simply cut the top open, ensure proper drainage, and plant directly into the soil.
Formula 707 is a nutrient-rich blend containing compost and worm castings, so it provides a strong foundation for your plants. Depending on the specific needs of your plant variety, you may choose to supplement with additional nutrients as the plant matures.
While it is formulated for large containers, it is quite heavy and moisture-retentive. It is best suited for large outdoor pots, trees, or bushes where you have adequate drainage and space.
The included mycorrhizal fungi form a symbiotic relationship with plant roots, effectively extending their reach. This helps the plant absorb more water and nutrients from the soil, leading to stronger root systems and more vigorous growth.
Because of the peat and coco fiber blend, this soil has a high moisture retention level. You will likely find yourself watering less frequently than you would with a standard, fast-draining potting mix.
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