15L Round Plant Pot - Black Nursery & Grow Pot

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The 15L Round Plant Pot is a versatile black horticultural grow pot designed for established plants, shrubs, larger ornamentals and productive edible crops. Measuring approximately 32cm across the upper rim, 24cm across the base and 26cm high, it provides substantial root volume in a practical professional nursery format.

With a nominal capacity of 15 litres, this pot is an excellent growing-on or finishing container for plants that have outgrown smaller nursery pots but do not yet require the footprint of a very large container.

The broad upper opening makes planting, top-dressing and checking the growing medium straightforward, while the tapered sides help established root balls release from the pot when plants need repotting or transplanting.

Suitable for peat-based and peat-free compost, soil mixes, coco coir, living soil and other appropriate horticultural substrates, the 15L Round Pot is suitable for professional nurseries, greenhouses, polytunnels, indoor growing and outdoor container cultivation.

Why choose the 15L Round Plant Pot?

  • 15 litre capacity - substantial root volume for established and larger plants.
  • 32cm upper rim - wide opening for straightforward planting, top-dressing and maintenance.
  • 26cm high - provides useful depth for continued root development.
  • 24cm base - tapered professional nursery-pot profile.
  • Excellent growing-on size - useful progression from smaller intermediate containers.
  • Versatile final container - suitable as a finishing pot for many ornamental and edible crops.
  • Suitable for peat-free media - compatible with modern peat-free growing substrates.
  • Suitable for coco - can be used with coco coir and coco-based growing systems.
  • Suitable for living soil - provides useful substrate volume for biologically active growing mixes.
  • Indoor & outdoor use - suitable for nurseries, greenhouses, polytunnels and gardens.
  • Reusable - sound pots can be cleaned and used for subsequent crops.
  • Compatible saucer available - fits the 30cm saucer, product code P00019.

Substantial 15 litre root volume

A 15L plant pot provides considerably more growing-medium volume than small propagation and intermediate nursery containers, giving established plants room to develop larger root systems and support increased above-ground growth.

The additional substrate volume also creates a greater reserve of moisture and nutrients. Once fully rooted, this can make moisture management more forgiving than in smaller pots, although irrigation requirements will still vary according to plant size, growing medium and environmental conditions.

Fifteen litres is a particularly useful size for plants that need significant root space while still remaining relatively easy to handle and reposition.

What can you grow in a 15L pot?

The 15L Round Plant Pot is suitable for a wide range of established edible and ornamental plants, including:

  • Tomato plants
  • Chillies and peppers
  • Aubergines
  • Established herbs
  • Patio fruit and vegetable crops
  • Herbaceous perennials
  • Ornamental plants
  • Young shrubs
  • Climbing plants
  • Small fruit bushes
  • General nursery stock

Whether 15L is appropriate as the final container depends on the mature size, vigour and expected growing period of the individual crop. Larger plants may eventually benefit from additional root volume.

Ideal for potting-on established plants

The 15L Round Pot provides a useful next stage for established plants that have thoroughly rooted through smaller containers.

Signs that a plant may be ready for a larger pot include roots extensively occupying the existing growing medium, increasingly rapid drying after irrigation or the plant becoming disproportionately large relative to its current container.

When potting-on, use a suitable fresh growing medium and position the existing root ball at an appropriate depth before filling around it. Water appropriately after transplanting to settle the new substrate around the root zone.

Suitable growing media

The 15L Round 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
  • Living soil
  • Other suitable horticultural substrates

Choose a growing medium appropriate for the crop and cultivation method. In larger containers, a good balance between moisture retention, drainage and air-filled porosity is particularly important for maintaining a healthy root environment.

Watering plants in 15L containers

Irrigation should be matched to the size of the plant, development of the root system and moisture-holding characteristics of the chosen substrate.

Immediately after potting-on, a plant's existing roots may occupy only part of the fresh 15L volume. Avoid repeatedly saturating a large volume of unrooted growing medium simply because the upper surface appears dry.

Once the plant becomes well established, water demand can increase considerably, particularly during warm weather and periods of rapid vegetative growth, flowering or fruit development.

The pot is suitable for hand watering and compatible nursery, greenhouse and drip irrigation systems.

Fits the 30cm Pot Saucer

The 15L Round Plant Pot is listed for use with the 30cm saucer, product code P00019.

The compatible saucer measures approximately 31cm across the rim, 28cm across the base and 5cm high.

Using a saucer can help collect irrigation runoff and protect greenhouse benches, patios, shelving, floors and other surfaces from excess water.

Unless using a cultivation method specifically designed around standing water, avoid leaving the pot permanently sitting in stagnant runoff.

Professional nursery & greenhouse grow pot

The 15L size provides commercial growers with a practical container for finishing larger plants and holding established nursery stock.

Its conventional round shape and tapered profile make plants straightforward to arrange and reposition as spacing requirements change throughout production.

As plant canopies develop, increasing the spacing between pots where necessary can help improve airflow, light interception and access for irrigation and crop maintenance.

Reusable horticultural plant pot

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

Remove old roots and growing-medium residue before cleaning. Where containers are reused between different crops, suitable hygiene procedures can help reduce the risk of transferring pests or plant pathogens.

The tapered profile also allows empty pots to nest together, helping minimise storage requirements between production cycles.

15L Round Plant Pot product details

Product Round Plant Pot
Nominal capacity 15L
Shape Round
Colour Black
Upper rim width Approximately 32cm
Base width Approximately 24cm
Height Approximately 26cm
Primary use Established plants, growing-on, finishing & nursery production
Suitable media Soil, compost, peat-free media, coco, living soil & compatible horticultural substrates
Suitable environments Nurseries, greenhouses, polytunnels, indoor growing & outdoor cultivation
Compatible saucer 30cm Saucer - product code P00019
Saucer dimensions Rim 31cm x base 28cm x height 5cm
Reusable Yes, when cleaned and maintained appropriately

15L Round Plant Pot FAQs

What are the dimensions of the 15L Round Plant Pot?

The pot measures approximately 32cm across the upper rim, 24cm across the base and 26cm high.

Which saucer fits the 15L Round Pot?

The specified compatible option is the 30cm saucer, product code P00019. It measures approximately 31cm across the rim, 28cm across the base and 5cm high.

Is a 15L pot suitable for tomatoes?

Yes. A 15L container provides useful root volume for many container-grown tomato plants. Particularly vigorous varieties may benefit from a larger final container.

Can I grow chillies and peppers in a 15L pot?

Yes. Fifteen litres provides substantial root volume for mature chilli and pepper plants and can make a practical final container.

Can I grow shrubs in a 15L pot?

Yes. It is suitable for many young shrubs and established nursery plants, although final container requirements depend on the species and mature size.

Can I use peat-free compost?

Yes. The 15L Round Pot can be used with peat-free compost as well as other suitable horticultural growing media.

Can I use coco coir in this pot?

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

Can I use living soil in a 15L pot?

Yes. Living soil can be used, although growers should consider whether 15 litres provides sufficient soil volume for the crop and biological growing method being used.

Is 15L large enough as a final plant pot?

For many medium-sized ornamental and edible plants it can be. Large, vigorous or long-lived plants may eventually require additional root volume.

Is the 15L pot suitable for professional nurseries?

Yes. Its capacity and conventional tapered profile make it useful for growing and finishing established nursery stock.

Can the 15L pot be used outdoors?

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

Why use a saucer under a 15L plant pot?

A saucer helps collect excess irrigation runoff and can protect greenhouse benches, patios, floors and other surfaces around the pot.

Can this plant pot be reused?

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

When should I move a plant into a 15L pot?

Consider potting-on once roots have established throughout the existing container and the plant needs additional growing-medium volume for continued development.

Does a 15L pot need watering less often than a small pot?

The larger substrate volume can retain more total moisture, but irrigation frequency still depends on plant size, root development, growing medium, temperature, light and other environmental conditions.

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£0.92