Uni-Gro Horticultural Sand
Best soil amendment for gardeners improving drainage and plant stability.
Enhance your garden's health and appearance with Uni-Gro Horticultural Sand. This washed sand is a premium soil amendment, expertly designed to improve drainage, loosen compacted soil, and provide essential stability for plant roots. Its natural tan color adds a touch of visual appeal, making it perfect for decorative top dressing in planters and floral arrangements. Available in a convenient 1-quart package, this silica sand is a simple yet effective solution for optimizing soil structure and presentation in any gardening project.
$8.19
Owner Satisfaction
4.6
/ 5
Category Rank
11
/ 54
#11 in Sand
Price vs Category Average
-67%
Below average
Weight
5.0
/ pounds
Who it's for
- Gardeners struggling with waterlogged soil and root rot
- Indoor growers working with dense or clay-heavy potting soil
- Succulent and bonsai enthusiasts creating custom drainage-focused soil mixes
Who should skip it
- Novice gardeners who prefer low-maintenance, pre-mixed soil solutions
- Container gardeners needing lightweight, easily movable plant pots
- Beginners looking for nutrient-rich soil amendments for faster growth
Performance breakdown
Drainage efficiency
Washed silica composition ensures optimal water flow for sensitive root systems.
Soil aeration
Medium-coarse grain effectively breaks up compaction to promote healthy root respiration.
Decorative versatility
Natural tan aesthetic provides a clean, professional finish for indoor planters.
Rooting support
Provides the necessary stability and grit for successful succulent propagation.
Packaging convenience
Small quart-sized bag is perfect for hobbyists but limits larger projects.
Purity level
High silica content minimizes impurities for a clean, reliable soil amendment.
Key Specs
Weight
5.0 pounds
Grain Size Category
Medium, Coarse
Volume
0.05 cubic feet
Intended Application
Top dressing
Sand Composition Type
Washed sand
Washed Status
True
Silica Content
95.0%
Moisture Content
0.5%
Features
- Improves soil drainage
- Loosens compacted soil
- Stabilizes plant roots
- Natural tan color
- Decorative top dressing
- Suitable for succulents
- Aids in rooting cuttings
What customers say
Customers consistently praise the high quality and purity of Uni Gro Horticultural Sand. It is exceptionally clean, free of debris, and features an ideal particle size, making it perfect for improving drainage in succulent and cactus mixes. Users find it incredibly easy to incorporate into their existing soil preparations, noting that it significantly enhances aeration without clumping. This reliability makes it a staple for serious plant enthusiasts seeking dependable soil amendments.
Know before you buy
Yes, it is an excellent soil amendment. Because it is washed and contains 95% silica, it effectively loosens compacted soil and improves drainage for plants that require a porous growing medium.
Absolutely. Its coarse grain size and drainage-enhancing properties make it ideal for succulents, which are prone to root rot if kept in soil that retains too much moisture.
Yes, the medium-to-coarse texture provides the necessary stability and aeration to support delicate cuttings as they begin to develop their root systems.
As a silica-based quarry sand, it is generally inert and should not significantly alter the pH of your potting mix, making it a safe choice for most container plants.
A 1-quart bag is best suited for small-to-medium decorative projects, such as topping off a few 4-to-6-inch pots or adding a clean finish to a single larger arrangement.
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$8