5" Hemp Grow Mats
Best sustainable solution for indoor microgreen and sprout growers.
Effortlessly grow microgreens, wheatgrass, and sprouts indoors year-round with Bootstrap Farmer's 5" Hemp Grow Mats. These mats are pre-cut to perfectly fit standard 5"x5" microgreen trays, ensuring a mess-free and simple growing experience. Crafted from industrial hemp, they boast exceptional water retention, holding over 10 times their weight in water. Being 100% biodegradable and compostable, cleanup is both easy and environmentally friendly, making them an ideal choice for sustainable indoor gardening.
$20.49
Owner Satisfaction
4.6
/ 5
Category Rank
14
/ 83
#14 in Pot & Planter Liners
Price vs Category Average
-80%
Below average
Mat dimensions
44
/ " x "
Who it's for
- Eco-conscious gardeners prioritizing sustainable and biodegradable growing materials
- Seedling growers needing consistent moisture and healthy root aeration
- Indoor gardeners wanting a mess-free, soil-less planting experience
Who should skip it
- Beginners preferring a self-contained, nutrient-rich growing medium
- Budget-focused growers comparing costs against bulk soil or coir
- Sustainable farmers seeking long-term, reusable growing substrates
Performance breakdown
Water Retention
Industrial hemp fibers hold significant moisture to sustain delicate microgreen roots.
Ease of Use
Pre-cut dimensions eliminate measuring and trimming for a seamless planting process.
Sustainability
Fully compostable material ensures a zero-waste lifecycle for your indoor garden.
Growth Consistency
pH neutral composition provides a stable, reliable environment for rapid germination.
Cleanup Efficiency
Disposable mats make post-harvest cleanup quick, mess-free, and environmentally responsible.
Tray Compatibility
Designed for standard 5x5 trays, though slightly smaller dimensions leave minor gaps.
Key Specs
Mat dimensions
4" x 4"
Weight per mat
300 gsm
pH neutral
Intended use
Seed Starting
Material
Industrial Hemp
Pack Quantity
40
Liner Shape
Square
Intended use location
Indoor
Features
- Pre-cut for 5"x5" microgreen trays
- 100% Biodegradable and compostable
- Superior water retention
- Mess-free indoor growing
- Ideal for microgreens and sprouts
- Made from industrial hemp
- Carbon capturing material
- Year-round indoor growing
What customers say
Customers overwhelmingly praise the 5-inch Hemp Grow Mats for their superior quality and sustainability. The pure hemp material is valued for its natural, biodegradable composition, aligning well with organic methods. A key benefit is the mat's exceptional water retention, which ensures consistent hydration across the growing surface, promoting uniform germination and strong root development. Growers appreciate the perfect fit for standard trays, simplifying setup and saving time. While these mats represent a premium investment over alternatives, the consensus is that the enhanced performance, cleanliness, and reliability fully justify the cost. The mats are celebrated for delivering professional grade results and simplifying the growing process for serious cultivators.
Know before you buy
The mats measure 4"x4", which is intentionally sized to sit comfortably within a standard 5"x5" microgreen tray. This allows for proper airflow around the edges while ensuring the roots have a stable surface to anchor to.
Hemp mats are highly absorbent and hold over 10 times their weight in water. You should keep the mat consistently moist but not waterlogged; because they retain moisture so effectively, you may find you need to water less frequently than with traditional soil.
These mats are ideal for most microgreens, wheatgrass, and sprouts. However, they work best for varieties that do not require a deep soil base, as the mat provides a thin, clean medium for the roots to grip.
No, these mats are designed for single-use. Because they are 100% biodegradable and compostable, you can simply toss the used mat and root system into your compost bin after harvest.
Hemp mats are pH neutral and do not contain added nutrients. For most microgreen varieties, the seed itself provides enough energy for the initial growth phase, but you can add a diluted liquid fertilizer if you are growing crops with a longer harvest cycle.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$20