30L Round Plant Pot - Heavy Duty Black Nursery & Grow Pot

Please sign in to see pricing

£2.65

The 30L Round Plant Pot is a large, robust black horticultural container providing generous root volume for established plants, shrubs, vegetables and longer-term container crops. Measuring approximately 42cm across the upper rim, 32.5cm across the base and 30cm high, it combines substantial growing capacity with a stable, practical round design.

The 30 litre capacity provides a significant step up from standard nursery pots, giving established plants more room for root development and a larger reserve of growing medium, moisture and nutrients.

Its traditional tapered round profile makes it suitable for professional nurseries, greenhouses, polytunnels and home horticulture. The wide upper opening provides excellent access for watering, feeding, mulching and dry top dressing, while the broad base helps support larger plants.

Pre-formed drainage openings allow excess irrigation water to escape from the bottom of the container, helping maintain the balance of moisture and air required for healthy root development.

Suitable for soil, peat-based and peat-free compost, coco coir, living soil and other horticultural growing media, this is a versatile large-format grow pot for indoor and outdoor cultivation.

Why choose the 30L Round Plant Pot?

  • Large 30 litre capacity - generous growing-medium volume for established plants and larger crops.
  • 42cm upper rim - wide surface area for irrigation, mulching and top dressing.
  • 30cm height - useful root depth without creating an excessively tall container.
  • 32.5cm base - broad footprint provides good stability for larger plants.
  • Robust horticultural construction - designed for practical nursery and growing applications.
  • Effective drainage - base openings allow excess irrigation water to escape.
  • Excellent potting-on size - provides a substantial increase in root volume from medium-sized containers.
  • Suitable for larger crops - ideal for shrubs, vegetables, ornamentals and established plants.
  • Suitable for living soil - provides useful soil volume and a broad surface for biological amendments.
  • Suitable for coco - compatible with coco coir and free-draining coco blends.
  • Works with multiple growing media - suitable for soil, compost, peat-free media and soilless substrates.
  • Indoor & outdoor use - suitable for nurseries, greenhouses, polytunnels, grow rooms, patios and gardens.
  • Reusable - sound pots can be cleaned and reused for multiple growing cycles.
  • Matching saucer available - fits the 40cm Pot Saucer, product code P00082.

Generous 30 litre root volume

Larger plants need sufficient growing-medium volume to support their developing root systems. A 30L pot provides considerably more root space than smaller nursery and intermediate containers.

This additional volume gives roots more growing medium to explore while also increasing the amount of water and nutrition that can be held within the container.

The result is a useful potting-on or finishing size for many vigorous plants, particularly where crops will remain in the same container for an extended period.

A larger container does not automatically mean more frequent watering. Newly transplanted plants may initially use only a small proportion of the available moisture, so irrigation should always reflect actual root development and crop demand.

30L Round Pot dimensions

The pot measures approximately 42cm across the upper rim, 32.5cm across the base and 30cm high.

The 42cm upper diameter creates a broad surface that is easy to irrigate evenly and provides plenty of room for surface amendments such as compost, worm castings, mulch and granular or powdered fertilisers.

Its 32.5cm base provides a stable footprint while retaining the tapered profile needed for efficient handling and nesting when pots are empty.

Suitable for living soil growing

The 30L capacity makes this pot particularly useful for growers wanting more biologically active soil volume than is available in conventional small containers.

Larger soil volumes provide more physical space for roots and soil biology while creating a greater reserve of moisture, organic matter and plant-available nutrition.

The wide 42cm surface also provides good access for adding compost, worm castings, mulch and dry amendments throughout the growing cycle.

Whether 30L is suitable as a final living soil container depends on the crop, expected plant size and growing method. Larger or particularly demanding plants may benefit from still greater soil volumes.

Suitable growing media

The 30L Round Pot can be used with a broad range of horticultural substrates, including:

  • Peat-based nursery compost
  • Peat-free growing media
  • Soil-based potting mixes
  • Living soil
  • Coco coir
  • Coco and perlite blends
  • Compost-based organic mixes
  • Other suitable free-draining horticultural substrates

Irrigation and nutrition should always be matched to the chosen substrate. A moisture-retentive compost will require a different watering strategy from a highly aerated coco or coco-perlite mix.

What can you grow in a 30L pot?

A 30 litre container provides sufficient root volume for a broad range of established plants and productive crops. Typical applications include:

  • Shrubs and ornamental plants
  • Large herbaceous perennials
  • Tomatoes
  • Peppers and chillies
  • Aubergines
  • Climbing plants
  • Suitable young trees and nursery stock
  • Longer-term container plants
  • Living soil cultivation
  • Large greenhouse and indoor crops

The correct final container size will depend on plant species, crop duration, expected mature size and cultivation method.

Drainage & irrigation

Drainage openings in the base allow excess irrigation water and nutrient solution to escape rather than remaining trapped around the lower root zone.

Good drainage is particularly important in large containers because an excessive volume of saturated growing medium can remain wet for considerably longer than a small pot.

After potting-on, irrigation should initially be matched to the size of the existing root ball. As roots establish throughout the 30L volume, the wetted area and irrigation volume can be increased accordingly.

The pot can be used with hand watering, drip irrigation and other suitable automated irrigation systems.

Fits the 40cm Pot Saucer

The 30L Round Pot is compatible with the 40cm Pot Saucer, product code P00082.

The matching saucer measures approximately 41cm across the rim, 37.5cm across the base and 6cm high.

A saucer is useful where irrigation runoff needs to be collected, particularly in indoor growing areas, greenhouses and on protected surfaces.

When used outdoors or in a free-draining commercial production area, a saucer may not be required.

Robust & reusable

The practical horticultural construction allows sound pots to be reused over multiple growing cycles.

After use, remove old substrate and root material before cleaning the container. Where pots are being moved between crops, suitable hygiene procedures should be followed to reduce the risk of transferring pests or plant pathogens.

The tapered round profile also allows empty pots to nest inside one another for more efficient storage and transport.

30L Round Plant Pot product details

Product Round Plant Pot
Nominal capacity 30L
Shape Round
Colour Black
Upper rim diameter Approximately 42cm
Base diameter Approximately 32.5cm
Height Approximately 30cm
Drainage Pre-formed base drainage openings
Suitable media Soil, compost, peat-free media, living soil, coco & compatible soilless substrates
Suitable environments Nurseries, greenhouses, polytunnels, indoor growing & outdoor cultivation
Typical applications Shrubs, vegetables, ornamentals, nursery stock & established container plants
Compatible saucer 40cm Pot Saucer - product code P00082
Compatible saucer dimensions Rim 41cm x base 37.5cm x height 6cm
Reusable Yes, when cleaned and maintained appropriately

30L Round Plant Pot FAQs

What are the dimensions of the 30L Round Pot?

The pot measures approximately 42cm across the upper rim, 32.5cm across the base and 30cm high.

What can I grow in a 30L plant pot?

A 30L pot is suitable for many established plants including shrubs, large perennials, tomatoes, peppers, chillies, aubergines, climbing plants and suitable nursery stock.

Is a 30L pot large enough for tomatoes?

Yes. A 30L container provides generous root and growing-medium volume for tomato plants when irrigation and nutrition are managed appropriately.

Is the 30L Round Pot suitable for living soil?

Yes. The 30L capacity provides useful soil volume for living soil growing, while the wide surface makes applying mulch, compost and dry amendments straightforward.

Can this pot be used with coco coir?

Yes. The pot can be filled with coco coir or coco-based blends. Irrigation should be adjusted to the crop and drainage characteristics of the substrate.

Does the 30L pot have drainage holes?

Yes. Drainage openings in the base allow excess irrigation water to escape from the growing medium.

Which saucer fits the 30L Round Pot?

The compatible saucer is the 40cm Pot Saucer, product code P00082. It measures approximately 41cm across the rim, 37.5cm across the base and 6cm high.

Do I need a saucer underneath the pot?

A saucer is useful where irrigation runoff needs to be contained, particularly indoors or on protected surfaces. It is not essential where drainage water can safely escape.

Can I use peat-free compost in this pot?

Yes. The pot is suitable for peat-free compost as well as peat-based media, soil mixes, living soil, coco and other appropriate horticultural substrates.

Can the 30L pot be used outdoors?

Yes. It is suitable for outdoor gardens, patios and nursery production as well as greenhouses, polytunnels and indoor growing.

Can I use drip irrigation with a 30L pot?

Yes. The pot can be used with drip irrigation and other suitable automated watering systems. Irrigation frequency and emitter arrangement should be matched to the plant and growing medium.

How should I water immediately after potting into 30L?

Irrigate according to the size of the existing root system rather than automatically saturating the entire container repeatedly. As roots colonise more of the substrate, irrigation volume and coverage can be increased.

Can the 30L Round Pot be reused?

Yes. Pots that remain in good condition can be emptied, cleaned and reused. Good crop hygiene is recommended between uses.

What is the difference between the 30L and 32L Round Pots?

Both have an approximately 42cm upper rim and 30cm height. The 30L pot has an approximately 32.5cm base, while the 32L version has an approximately 35cm base, giving the 32L pot slightly greater growing-medium capacity and a broader lower profile.

Pay with

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Your transaction is protected with advanced security measures to keep your information confidential

£2.65