11cm Square Plant Pot 1L - Black Nursery & Grow Pot

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The 11cm Square Plant Pot is a compact 1 litre black horticultural pot designed for propagation, potting-on and nursery production. Its square footprint allows plants to be positioned efficiently on benches and growing areas, making it particularly useful when larger numbers of young plants need to be accommodated in a limited space.

With a nominal capacity of 1 litre, this pot provides a practical step up from smaller seedling and propagation containers. It gives developing root systems additional growing-medium volume without moving young plants directly into an unnecessarily large container.

The tapered sides help established root balls release from the container when plants are ready for potting-on, while the square upper profile reduces the unused gaps normally created between conventional round pots.

Suitable for peat-based and peat-free compost, soil mixes, coco coir and other horticultural growing media, the 11cm Square Pot is suitable for professional nurseries, greenhouses, propagation areas, indoor growing and home horticulture.

Why choose the 11cm Square Plant Pot?

  • 1 litre capacity - ideal for established seedlings, rooted cuttings and young plants.
  • 11cm square format - provides an efficient footprint for benches and growing areas.
  • Excellent growing-on pot - a practical progression from smaller propagation containers.
  • Space efficient - square pots can be positioned closely together with minimal wasted space.
  • Tapered profile - helps with plant removal and allows empty pots to nest together.
  • Suitable for peat-free compost - compatible with modern peat-free growing media.
  • Suitable for coco - useful for coco coir and coco-based growing systems.
  • Professional nursery format - suitable for propagation, growing-on and retail plants.
  • Versatile crop use - suitable for herbs, ornamentals, vegetables and general nursery stock.
  • Indoor & outdoor use - suitable for greenhouses, polytunnels, nurseries and gardens.
  • Reusable - sound pots can be cleaned and reused for subsequent crops.

Space-saving square plant pot

One of the main advantages of a square plant pot is efficient use of growing space. Square containers can sit closely alongside one another, reducing the gaps that naturally occur between rows of round pots.

This can be particularly valuable in propagation units, nurseries and greenhouses where hundreds or thousands of young plants may occupy the same production area.

As plants develop larger canopies, pots can then be spaced further apart where required to improve airflow, light distribution and access for irrigation.

The tapered sides also allow empty pots to nest together, reducing the amount of storage space required between growing cycles.

A practical 1 litre growing-on pot

A 1L plant pot is a useful intermediate container for plants that have established in smaller propagation cells, plug trays or starter pots.

Moving a young plant into approximately one litre of growing medium provides fresh substrate and additional root space while keeping the container volume manageable during early development.

For many nursery crops, the 1L stage provides an effective bridge between propagation and larger 2L, 3L or finishing containers.

Compact plants and short-cycle crops may also be grown to sale or maturity in a 1L container where the available root volume is appropriate.

What can you grow in a 1L square pot?

The 11cm Square Plant Pot is suitable for a wide variety of young and compact plants, including:

  • Established seedlings
  • Rooted cuttings
  • Herbs
  • Young chilli and pepper plants
  • Young tomato plants
  • Bedding plants
  • Herbaceous perennials
  • Young ornamental plants
  • Vegetable transplants
  • Young shrubs
  • General nursery stock

Whether 1L is suitable as a final container depends on the mature size and vigour of the crop. Larger plants will normally require potting-on as their root systems develop.

Suitable growing media

The 11cm Square Plant Pot can be used with a broad range of horticultural substrates, including:

  • Peat-free compost
  • Peat-based nursery compost
  • Soil-based potting mixes
  • Compost-based growing media
  • Coco coir
  • Coco and perlite mixes
  • Other suitable propagation and nursery substrates

Select a growing medium appropriate for the crop and irrigation system. Different substrates vary considerably in water-holding capacity, drainage and air-filled porosity.

When should you pot on into a 1L container?

Potting-on should generally be based on plant and root development rather than following a fixed timetable.

Young plants may be ready for a 1L pot when roots have established throughout their existing propagation medium, the smaller container is drying increasingly quickly or additional root volume is needed to support continued growth.

Progressive potting can make irrigation easier to manage because the amount of growing medium remains reasonably proportionate to the developing root system.

Watering plants in 1L pots

One litre containers hold substantially less growing medium than large finishing pots, so moisture levels can change relatively quickly as plants become established.

Check the substrate regularly rather than watering solely according to a fixed timetable. Temperature, light levels, plant size, root development and the chosen growing medium can all significantly affect irrigation frequency.

Immediately after potting-on, avoid repeatedly saturating fresh substrate that has not yet been fully colonised by roots. Water demand will normally increase as the plant develops.

Ideal for propagation & nursery production

The combination of compact volume and square footprint makes the 11cm 1L pot particularly useful for professional growing-on applications.

Plants can initially be positioned closely together to maximise production space before being progressively spaced as their canopies increase in size.

The manageable container size also makes young plants straightforward to move, grade, irrigate and prepare for potting-on or retail.

Compatible 25cm Pot Saucer

The existing product specification lists the 25cm saucer, product code P00110, for use with this pot.

The saucer measures approximately 25.5cm across the rim, 21.5cm across the base and 4cm high.

A saucer can help collect irrigation runoff and protect greenhouse benches, shelving and other growing surfaces from excess water.

Reusable horticultural plant pot

Pots that remain in sound condition can be emptied, cleaned and reused for subsequent plants.

Remove old roots and growing-medium residue before cleaning. Appropriate hygiene between crops can help minimise the risk of transferring pests or plant pathogens.

Empty pots can be nested together to reduce storage requirements when not in use.

11cm Square Plant Pot product details

Product Square Plant Pot
Nominal capacity 1L
Nominal size 11cm
Shape Square
Colour Black
Primary use Propagation, potting-on, growing-on & nursery production
Suitable media Soil, compost, peat-free media, coco & compatible horticultural substrates
Suitable environments Nurseries, greenhouses, polytunnels, propagation areas, indoor growing & outdoor cultivation
Listed saucer 25cm Saucer - product code P00110
Saucer dimensions Rim 25.5cm x base 21.5cm x height 4cm
Reusable Yes, when cleaned and maintained appropriately

11cm Square 1L Plant Pot FAQs

What capacity is the 11cm Square Plant Pot?

This pot has a nominal growing capacity of approximately 1 litre.

Is an 11cm pot suitable for seedlings?

Yes. It is particularly useful for established seedlings that have developed beyond their initial propagation cells or starter pots.

Is a 1L pot good for rooted cuttings?

Yes. Once a cutting has developed a suitable root system, a 1L container can provide useful additional substrate volume for growing-on.

Why use square plant pots?

Square pots can be positioned closely alongside one another, helping growers use greenhouse, propagation and nursery bench space efficiently.

Can I grow herbs in a 1L pot?

Yes. Many herbs can be grown or grown-on in 1L pots, although larger perennial herbs may eventually require additional root volume.

Can I grow chillies in a 1L pot?

A 1L pot is useful for growing-on young chilli and pepper plants before they are moved into larger final containers.

Can I grow tomatoes in a 1L pot?

Yes, for the young-plant stage. Most mature tomato plants will require a considerably larger final container.

Can I use peat-free compost?

Yes. The pot can be used with peat-free compost as well as other appropriate nursery and propagation growing media.

Can this square pot be used with coco coir?

Yes. Coco coir and coco-based substrates can be used, with irrigation and nutrition managed according to the chosen growing system.

Is 1L suitable as a final plant pot?

It can be suitable for compact plants and some short-cycle crops. Larger or more vigorous plants will generally need potting-on into a bigger container.

Is this suitable for professional nursery production?

Yes. The square footprint and practical 1L capacity make it particularly useful for nursery growing-on and space-efficient plant production.

Can the pot be used outdoors?

Yes. It is suitable for outdoor cultivation as well as greenhouses, polytunnels, nurseries and indoor growing areas.

Can the pot be reused?

Yes. Pots that remain in good condition can be cleaned and reused. Appropriate hygiene is recommended between crops.

When should I move a plant from a 1L pot?

Consider potting-on when roots have established throughout the growing medium, the pot begins drying increasingly quickly or the plant requires more root volume for continued development.

What saucer is listed for this pot?

The existing specification lists the 25cm saucer, product code P00110, measuring approximately 25.5cm across the rim, 21.5cm across the base and 4cm high.

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