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Growing media & pots 2 min
Propagation plug or starter block: choose the next stepA plug and a starter block have different roles. Check the medium, root development and dimensions before moving young plants into a larger block or a pot.
Read moreGrowing media & pots for your setup
A good grow starts at the roots. Choose potting soil, coco coir, starter blocks and hydroponic media at Greendiscounter, along with pots and accessories for your setup. We help you compare initial nutrients, pot size, plant stage and your watering method.
Choose your growing medium, then your pot
Growing in soil? Compare the initial fertilisation of Grow soil for indoor growing. Plagron Lightmix and Atami Janeco lightmix are lightly fertilised; Atami Kilomix has a richer nutrient base.
For Coco coir, choose a suitable feeding programme. Plagron Cocos Premium is washed and buffered and needs nutrients from the start. Atami Cocos substraat is lightly fertilised. These products therefore have different starting conditions.
Choose Plant pots by capacity and outer dimensions. For young plants, explore Propagation supplies; for a hydroponic setup, compare the available Hydroponics. Our soil or coco guide helps you weigh the differences.
Compare square plant pots: 25, 18 and 14 litres
Kweekpot voor planten | Vierkant | 25L | 33x33x35cm
0 reviews0 out of 5 stars
3.83
- Capacity
- 25 L
- Dimensions
- 33 × 33 × 35 cm
Kweekpot voor planten | Vierkant | 18L | 31x31x31,6cm
0 reviews0 out of 5 stars
2.19
- Capacity
- 18 L
- Dimensions
- 31 × 31 × 31.6 cm
Kweekpot voor planten | Vierkant | 14L | 28x28x28,5cm
0 reviews0 out of 5 stars
1.96
- Capacity
- 14 L
- Dimensions
- 28 × 28 × 28.5 cm
Choose your approach
From young plants to an established setup
Growing in potting soil
Choose lightly or more heavily fertilised soil. Match additional nutrients to the mix, plant stage and watering.
Explore potting soil
Growing in coco coir
Check buffering and initial nutrients. Choose coco nutrients and adjust watering to your pots and plants.
Explore coco coir
Cuttings and young plants
Start with a suitable pot or plug. For a starter block, check the hole size and how the root plug fits.
Explore propagation supplies
A hydroponic setup
Mapito and RFX-1 are loose growing media for a suitable system. Check preparation, water distribution and drainage.
Explore hydroponic media
How much growing medium do you need?
Add up the nominal pot volumes, then account for filling height and existing root balls. Our guide shows how to make a useful purchasing estimate.
Quick links
Growing media & pot advice
All growing media & pot guides
Growing media & pots 2 minPotting soil or coco: which growing medium suits you?Choose a medium for its starting nutrients, your watering method and the way you want to grow. Examples from our range show why different bags of soil and coco need different approaches.
Read more
Growing media & pots 2 minChoose a pot size and calculate your growing medium volumeLitres and outer dimensions answer different questions. Choose a pot for your plant and setup, then make a useful estimate of the soil or coco you need.
Read more
Frequently asked questions about media and pots
Help choosing your growing medium?
Tell us your plant stage, pot size and watering method. We help you match the growing medium and the products you need.
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Measuring jugs for water and nutrients
Measure water and additions for your feeding programme. Choose graduations suited to your dose; a large jug is less suitable for very small quantities.
Maatbeker 2000ml
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8.03
In stock
Maatbeker 1000ml
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4.50
In stock
Maatbeker 500ml
0 reviews0 out of 5 stars
3.30
In stock
Maatbeker 250ml
0 reviews0 out of 5 stars
2.78
In stock
All subcategories, brands and guides
Growing medium and pot shape the root environment
Initial nutrients set the starting point
A bag of potting soil is not a complete feeding programme. A light mix gives a different start from richer soil. With coco, check washing, buffering and added nutrients too. Use the exact product and version as your starting point; the brand or bag colour alone is not enough.
Pot capacity, dimensions and watering
Litres describe nominal capacity. Outer dimensions determine whether a pot fits your table, tray or tent. Allow space for saucers and moving plants. A larger pot changes the water balance and is not automatically better for a small root ball.
From plug to pot or block
A starter medium supports the early stage; the next step needs sufficient root development and a suitable fit. Assess the plug and planting hole together. Rockwool, potting soil and coco have different use instructions. Check before transferring a watering routine from another setup.
Choose soil improvers for a purpose
Worm Delight, Supermix and Bat Guano have supplementary roles. They do not replace a complete bag of potting soil and are not automatically suitable for every medium. Check use and dosage before adding them, particularly when the mix already contains nutrients.
soil or coco guide · pot volume guide · plug and starter block guide · Choosing plant nutrients for soil, coco or hydro