Sunshine Advanced Mix #4 Growing Mix
Best organic growing medium for indoor gardeners and vegetable enthusiasts.
Discover the Sunshine® Advanced Mix #4 Growing Mix, a 3 cubic foot compressed bale that expands to 6 cubic feet. Expertly formulated for houseplants, indoor containers, vegetables, and herbs, this OMRI Listed® growing media features a Myco-active, no-burn formula. It's enhanced with Sun Gro’s proprietary endomycorrhizae blend to boost plant health and retain moisture while improving root aeration and drainage. Key ingredients include Canadian Sphagnum peat moss, perlite, coir, and dolomite lime, all contributing to superior plant growth without added fertilizer.
$44.99
Owner Satisfaction
4.7
/ 5
Category Rank
11
/ 1247
#11 in Soil
Price vs Category Average
-11%
Below average
Volume
3..6..
/ cu ft compressed bale (expands to cu ft)
Who it's for
- Gardeners prone to overwatering their sensitive indoor plants
- Commercial growers needing reliable results across large-scale operations
- Busy hobbyists wanting a stable environment for diverse plant collections
Who should skip it
- Beginners looking for a simple, pre-fertilized soil solution
- Forgetful waterers who struggle with maintaining consistent soil moisture
- Budget-conscious gardeners shopping for basic retail potting mixes
Performance breakdown
Root Aeration
Perlite content ensures excellent oxygen flow for vigorous root development.
Moisture Retention
Coir and peat moss balance hydration needs for consistent plant health.
Organic Integrity
OMRI listing guarantees compliance with strict organic gardening standards.
Storage Efficiency
Compressed bale design maximizes space in sheds and small garages.
Biological Activity
Proprietary endomycorrhizae blend actively supports long-term soil vitality.
Nutrient Flexibility
Fertilizer-free base allows gardeners total control over specific feeding schedules.
Key Specs
Volume
3 cu. ft. compressed bale (expands to 6 cu. ft.)
Drainage
High
Water Retention
Medium
Particle Size
Medium
Ingredients
Canadian Sphagnum peat moss, perlite, coir, dolomite lime, proprietary blend of endomycorrhizae and organic wetting agent
Certifications
OMRI Listed®
Intended Use
Potting, Vegetable Garden, Flower Bed
Soil Type
Potting Mix
Features
- Myco-active, no-burn formula for healthy plants
- Boosted with proprietary endomycorrhizae blend
- Improves root aeration and drainage
- Contains RESiLIENCE® technology
- Eco-compressed bale for easy storage
- OMRI Listed® for organic gardening
- Retains moisture effectively
- Ideal for diverse plant types
What customers say
Customers consistently praise Sunshine Advanced Mix #4 for its exceptional quality and reliability. Growers appreciate the perfect balance of aeration and water retention, which leads to vigorous plant growth and fewer issues like root rot. The mix is ready to use right out of the bag, making it incredibly easy for both hobbyists and commercial operations. This consistency ensures predictable results, establishing it as a trusted, high performing foundation for diverse planting needs.
Know before you buy
No, Sunshine Advanced Mix #4 does not contain added fertilizers. This allows you to have full control over your plant's nutrient regimen from the start.
The bale is compressed for easier storage and transport. Once opened and loosened, the 3 cubic foot bale expands to approximately 6 cubic feet of growing media.
Yes, this product is OMRI Listed, meaning it meets the standards required for use in organic gardening and production.
The proprietary endomycorrhizae blend helps establish a symbiotic relationship with plant roots. This improves nutrient uptake, enhances water absorption, and supports overall root health.
It is highly versatile and works well for both. The mix is specifically formulated to provide the aeration and drainage required for indoor containers, while also performing excellently in outdoor vegetable gardens and flower beds.
RESiLIENCE is a proprietary additive that helps improve plant strength and stress tolerance. It encourages more robust growth and helps plants better withstand environmental fluctuations.
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Ask Hayley anything about this product before you decide.
Ready to buy?
$45