Garland 28 Cell Deep Root Plant Cells - Reusable Split Root Trainer Cells

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£5.78

The Garland 28 Cell Deep Root Plant Cells are reusable deep propagation cells designed to encourage strong downward root development while making transplanting easier. Supplied as seven strips of four cells, the set provides 28 individual growing positions for seedlings, young plants and other crops that benefit from additional rooting depth.

Each strip measures approximately 21 x 5 x 12cm, giving plants considerably more vertical rooting space than a conventional shallow seed tray. The individual cells feature a ribbed internal profile and an open base, helping to guide developing roots downwards while providing drainage and exposure to air at the bottom of the cell.

The cells are also designed to open along their split sides. When plants are ready to move on, the root system can be inspected and the cell opened to release the root ball rather than pulling the plant from a rigid pot. This makes the system particularly useful where preserving a well-developed root structure during transplanting is important.

Why choose Garland Deep Root Plant Cells?

  • 28 individual growing cells - supplied as seven convenient strips of four cells.
  • 12cm deep format - provides substantial vertical space for early root development.
  • Root-training profile - internal ribs help guide developing roots down the cell.
  • Open cell bases - allow excess irrigation water to drain and expose roots reaching the bottom to air.
  • Split-cell construction - opens for easier access to the established root ball at transplanting.
  • Easy root inspection - individual cells can be opened to assess root development.
  • Reduced root disturbance - avoids having to pull seedlings from rigid pots or push plugs through small openings.
  • Reusable propagation system - clean after use and prepare the cells for subsequent crops.
  • Suitable for deep-rooted plants - useful for vegetables, flowers, trees, shrubs and other suitable crops.
  • Compatible with the Garland Deep Root system - the same style of cells used within the Garland 28 Cell Deep Root Success Kit.

Deep cells for better root development

Young plants can quickly become restricted in shallow propagation cells, particularly species that naturally develop vigorous or deeper root systems. The Garland Deep Root Plant Cells provide approximately 12cm of cell depth, allowing roots more vertical growing space during propagation.

The internal ribs are designed to encourage roots to follow a downward path through the cell rather than simply circling around smooth container walls. This helps create a root structure suited to subsequent transplanting into a larger container or final growing position.

The open base performs two functions. It allows excess irrigation water to drain freely from the growing medium, while roots reaching the bottom of the cell are exposed to air rather than continuing to grow around an enclosed container base.

As with any propagation system, results depend on appropriate crop selection, growing medium, irrigation, nutrition and environmental conditions.

Split cells for easier transplanting

The opening cell design is particularly useful when it is time to transplant young plants. Removing an established seedling from a conventional rigid pot can require squeezing the container or pulling the root ball from the top. Both methods can disturb delicate roots and growing media.

With the Garland system, the individual cell can instead be opened around the root ball. This exposes the growing medium and roots, allowing the established plant to be removed with less manipulation.

The same feature also provides a useful way to inspect root development before transplanting. A cell can be carefully opened to check how thoroughly the growing medium has been colonised by roots, helping growers judge whether a plant is ready to move on.

After transplanting, the reusable cells can be cleaned and prepared for another propagation cycle.

Seven manageable strips of four cells

The 28 cells are arranged as seven separate strips, with four deep cells per strip. Each strip measures approximately 21cm long x 5cm wide x 12cm high.

This modular arrangement makes it easier to work with smaller batches of plants. Rather than handling all 28 growing positions as one fixed tray, individual strips can be moved, inspected and transplanted as required.

For growers raising several varieties at the same time, separate strips can also make it easier to keep different batches organised.

What can you grow in Garland Deep Root Plant Cells?

The cells are particularly useful for plants that benefit from more rooting depth during propagation than a conventional shallow module provides.

Application Why deep cells can help
Sweet peas Provide additional depth for vigorous young root systems before planting out.
Peas Allow individual seedlings to establish in deep cells before transplanting.
Beans Provide individual growing positions and useful rooting depth during early development.
Young trees Deep cells provide more vertical rooting space than conventional shallow propagation trays.
Shrubs Useful for suitable young plants where a deeper propagation container is preferred.
General propagation Suitable for other crops that benefit from individual deep-cell propagation before potting on or planting out.

How to use Garland Deep Root Plant Cells

Fill with propagation growing media

Fill the cells with an appropriate seed or propagation growing medium. Settle the medium gently into each deep cell without excessive compaction so that an appropriate balance of moisture retention, aeration and drainage can be maintained.

Sow the crop

Sow seeds according to the requirements of the selected species. Each cell provides an individual growing position, helping prevent neighbouring seedlings from becoming intertwined within one large root mass.

Water carefully

Water thoroughly enough to moisten the growing medium throughout the depth of the cell and allow excess water to drain from the open base. Monitor moisture carefully, as requirements will vary with crop, growing medium and environmental conditions.

Monitor root development

As plants establish, the split-cell construction allows the root system to be inspected when necessary. Handle young roots carefully and close the cell again if the plant requires additional growing time.

Open the cell for transplanting

When the plant is ready to move on, remove the relevant strip and carefully open the cell around the root ball. Transfer the plant into a larger container or its final growing position as appropriate for the crop.

Part of the Garland Deep Root propagation system

These 28 Deep Root Plant Cells are the growing-cell component used within Garland's Deep Root propagation system.

For growers looking for a complete covered propagation setup, the Garland 28 Cell Deep Root Success Kit combines 28 deep cells with a supporting base tray and a clear ventilated propagator lid.

This standalone set is useful for growers who already have a suitable Deep Root setup, want additional cells for crop rotation or simply want to use the deep cell strips independently within an appropriate propagation arrangement.

Garland 28 Cell Deep Root Plant Cells product details

Manufacturer Garland
Product type Reusable deep root trainer plant cells
Total growing cells 28
Configuration 7 strips of 4 cells
Dimensions per strip 21 x 5 x 12cm
Cell design Deep, ribbed split propagation cells
Cell base Open for drainage & root exposure to air
Reusable Yes
Number supplied 28 plant cells
Outer case quantity 6 sets
Typical applications Deep-rooted seedlings, vegetables, flowers, young trees, shrubs & general propagation

Garland 28 Cell Deep Root Plant Cells FAQs

How many Deep Root Plant Cells are included?

The set provides 28 individual growing cells, arranged as seven strips containing four cells each.

What size is each strip?

Each four-cell strip measures approximately 21cm long x 5cm wide x 12cm high.

Why are the Garland cells so deep?

The 12cm depth provides additional vertical growing space for root development, making the cells particularly useful for plants that benefit from deeper propagation containers.

Why are there ribs inside the cells?

The internal ribs help guide developing roots down through the cell rather than encouraging them to follow the sides of a smooth container.

Why are the bottoms of the cells open?

The open bases allow excess irrigation water to drain and expose roots reaching the bottom of the cells to air.

How do the split cells make transplanting easier?

The cells can be opened around the established root ball, reducing the need to squeeze the container or pull the plant from a rigid cell during transplanting.

Can I inspect the roots before transplanting?

Yes. The split-cell design allows an individual cell to be carefully opened so root development can be inspected before deciding whether the plant is ready to transplant.

Are Garland Deep Root Plant Cells reusable?

Yes. After transplanting, remove remaining growing media and roots, clean the cells and allow them to dry before using them for another propagation cycle.

Do these cells include the base tray and propagator lid?

No. This product contains the 28 Deep Root Plant Cells only. The complete Garland Deep Root Success Kit includes the cells together with a base tray and clear ventilated propagator lid.

What plants can I grow in Deep Root cells?

They are particularly useful for crops that benefit from additional rooting depth during propagation, including sweet peas, peas, beans and suitable young trees and shrubs, as well as other plants suited to deep-cell propagation.

Can I use only some of the cells at a time?

Yes. Because the 28 cells are arranged in seven separate four-cell strips, growers can work with individual strips rather than using all 28 positions at once.

How many sets are supplied in an outer case?

The outer case quantity is 6 sets. Each set contains 28 Deep Root Plant Cells.

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£5.78