Open-top coco coir bags are the standard substrate format for tabletop and container production — strawberries, blueberries, ornamentals, and smaller fruiting crops. But growers often default to whatever size their last supplier stocked, without checking whether it actually matches their crop's root system or spacing plan.
This guide breaks down the 1, 1.5, and 2 gallon formats — what each is actually built for, and how to choose without guessing.
The smallest of the three, best suited to compact root systems and tighter plant spacing. Strawberries in high-density tabletop systems are the most common use case — where growers prioritize plant count per bench over root volume per plant. Also common for smaller ornamentals and short-cycle crops replaced each season.
The middle ground, and often the safer default when you're not certain which way to round. Gives meaningfully more root volume than the 1-gallon option without a large jump in cost per plant — useful for varieties with more vigorous root systems.
Best for larger root systems or longer growing cycles — perennial berries left in place across multiple seasons, larger ornamentals, or any crop where root establishment over time matters more than maximizing plants per bench.
If you're unsure which size to order, 1.5 gallon is the safer middle choice for most strawberry and mid-size crop applications.
| Size | Volume | Irrigation Frequency | Best For |
|---|---|---|---|
| 1 Gallon | ~3.8 L | Higher — dries faster | High-density strawberries, small ornamentals |
| 1.5 Gallon | ~5.7 L | Moderate | Standard strawberry production |
| 2 Gallon | ~7.6 L | Lower — more buffer | Perennial berries, larger ornamentals |
Irrigation frequency. Smaller bags dry out faster and need more frequent fertigation cycles — if your irrigation system runs on a fixed schedule rather than sensor-driven, undersizing can create stress between cycles that a slightly larger bag would buffer.
Cost per plant vs. cost per bench. A 1-gallon bag costs less per unit, but if it means the plant needs replacing a season earlier than a 1.5 or 2 gallon would have supported, the "savings" can disappear in labor and replanting costs.
Bench/gutter spacing compatibility. Bag footprint needs to match your existing bench or gutter system — check the physical width of your setup before assuming a size upgrade is a straightforward swap.
Regardless of size, the substrate quality matters more than the gallon count on the label:
Note: A beautifully sized bag with unbuffered coir will still underperform a slightly-off size filled with properly buffered, lab-tested substrate. Size is a secondary decision — quality control is the primary one.
Open-top bags are stocked for tabletop and gutter-fed berry operations across Ontario, BC, and the Canada–USA border states (Michigan, New York, Washington), with same-week dispatch from an Ontario warehouse for Canadian orders. US buyers get factory-direct pricing without the wait of overseas container shipping. Mexico's berry and hydroponic sectors are an actively growing market for this format — supply is expanding, though freight and customs timelines into the region are still less standardized than the Canada–USA lane, so confirm current lead times before locking in a planting schedule.
For most standard strawberry and mid-size crop production, 1.5 gallon is the safer default — it costs less than jumping straight to 2 gallon while avoiding the irrigation-frequency and root-crowding tradeoffs that come with undersizing at 1 gallon. Choose 1 gallon only when maximizing plant density per bench is the priority, and 2 gallon when you're running perennial crops across multiple seasons. Every size ships with the same triple-washed, calcium nitrate buffered substrate — the gallon number changes root volume, not quality.
1, 1.5 & 2 gallon sizes — factory-direct, Ontario-stocked, quote in under 24 hours.
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