Coast of Maine
Coast of Maine Castine Blend Organic Raised Bed Mix
Best organic soil for effortless raised bed and container gardening.
Elevate your garden with Coast of Maine's Castine Blend Organic Raised Bed Mix. This ready-to-use soil is specifically formulated for robust vegetable, herb, and flower growth, eliminating the need for extra components or tilling. Enriched with a diverse blend of organic ingredients like worm castings, lobster meal, and biochar, it promotes exceptional plant health and yields. Ideal for raised beds, planter boxes, and containers, this OMRI Listed mix ensures your organic gardening system thrives. Experience the difference of premium, natural soil designed for abundant harvests and vibrant blooms.
$18.00
Owner Satisfaction
4.7
/ 5
Category Rank
11
/ 1247
#11 in Soil
Price vs Category Average
-64%
Below average
Target pH
6.5
Who it's for
- Organic gardeners seeking nutrient-dense soil for vigorous plant growth
- Raised bed owners needing superior drainage and soil aeration
- Eco-conscious growers prioritizing sustainable and ethically sourced ingredients
Who should skip it
- Sensitive gardeners bothered by temporary marine-based earthy scents
- Budget-focused gardeners filling large-scale raised bed projects
- Shoppers located outside the Northeastern United States
Performance breakdown
Nutrient Density
Worm castings and lobster meal provide a powerhouse of organic nutrition.
Ease of Application
Ready-to-use formula eliminates the need for mixing or tilling soil.
Moisture Retention
High-quality organic amendments keep roots hydrated throughout the growing season.
Soil Structure
Biochar and fine compost create an ideal environment for root development.
Organic Integrity
OMRI listing guarantees the highest standards for certified organic gardening.
Versatility
Perfectly balanced for raised beds, containers, and traditional garden plots.
Key Specs
Target pH
6.5
Volume
2.0 cubic feet
Compost Form
Fine
Nutrient Focus
Balanced
Odor Level
Low Odor
Packaging Type
Bag
Nutrient Release Rate
Slow Release
Microbial Enhancement
Yes
Features
- Ready to use, no tilling required
- Enriched with worm castings and biochar
- Promotes abundant vegetable yields
- Ideal for raised beds and containers
- OMRI Listed for organic gardening
- Supports healthy root development
- Enhances soil structure and fertility
- Made with diverse organic amendments
What customers say
Customers rave about the Castine Blend's superior quality and rich composition. Its light, fluffy texture immediately boosts plant vigor and yield, simplifying successful organic gardening. While priced higher, the outstanding results make it a worthwhile investment. Reviewers consistently find the blend offers excellent value, delivering reliable, high performance for serious gardeners seeking the best growing media.
Know before you buy
No, this is a ready-to-use blend. You can pour it directly into your raised beds, planter boxes, or containers and plant your seeds or starts immediately without any additional tilling or mixing.
While it is formulated for robust growth, it is best used for transplanting starts or filling containers for mature plants. For delicate seed starting, you may prefer a finer, lighter seed-starting medium.
No, the Castine Blend is OMRI Listed for organic gardening. It relies on natural amendments like worm castings, lobster meal, and biochar to provide nutrients rather than synthetic additives.
Biochar helps improve soil structure and moisture retention while providing a stable environment for beneficial microbes to thrive. This leads to better nutrient uptake and healthier root systems for your vegetables and flowers.
Despite the organic ingredients, the mix has a low odor profile. It is well-composted, making it suitable for use in residential areas, including patio containers and rooftop gardens.
Because this mix includes slow-release organic nutrients, it provides a solid foundation for the growing season. Depending on the heavy-feeding needs of your specific plants, you may choose to supplement with additional organic fertilizer later in the season.
Still have a question?
Ask Hayley anything about this product before you decide.