Propagators

A propagator enables you to kick start seeds into germination earlier in the season by providing them with a stable growing environment.

When seedlings are young, they’re more vulnerable to being damaged by changes in temperature and moisture, using a propagator gives you greater control over the early life growing environment.

See out range of Premium Stewarts Standard and Thermostatic propagators.

Showing all 6 results

  • Electric Heated Propagator Mat

    Heated Propagation Mat – Gro-sure

     £29.99

    The Gro-Sure Electric Heated Propagation Mat is a flexible mat that provides even heat distribution to seedlings, flowers, fruits and also vegetables.

    This creates a warm growing environment to boost seed germination giving you an increased success rate. Use it with any combination of pots and trays so you can grow multiple seed varieties at the same time. The 17.5W heat element will increase the ambient temperature by 5-15°C.

    • Ideal for use with a variety of pots and trays.
    • IP64 water and dirt resistant.
    • Robust cable protector.
    • 240v mains powered.
    • Use with any of our Seed Trays and Propagators.
    • Size: – 50cm x 25cm

    For household/indoor use only.

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  • Windowsill Propagator

    Windowsill Propagator Set – Gro-Sure

     £6.29

    The Gro-Sure Visiroot Windowsill Propagator is ideal for growing seeds and cuttings on windowsills.

    It has modular cells for growing different seed varieties so you can maximise your growing. The transparent RPET cells make it easy to check root growth and moisture levels. This also means you don’t have to disturb the plant and therefore will give you visibly better results. Use year after year for each growing season.

    All of the Visiroot range is recyclable through all kerbside collections at home too.

    The Gro-Sure Visiroot Windowsill Propagator includes 5 x 4 cell trays, 1 x drip tray and 1 x propagator lid

    • Modular cells for different seed varieties
    • Easy to check root growth
    • Complete with drip tray and propagator lid
    • Durable for use year after year
    • Made from RPET – easy to recycle at home
    • Ideal for growing seeds and cuttings on windowsills
    • For even better results, use with Gro-sure Seed & Cutting Compost
    • Size: – H 7.2cm x W 54.2cm x D 15.7cm

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  • Premium Propagator

    Premium Propagator – 38cm

     £9.99

    This Stewarts Premium propagator provides the ideal environment for seedlings and cuttings, encouraging speedier growth.  This ensures great results with flowers, plants, salads, herbs and vegetables.

    • Made from sturdy high-quality recyclable plastic.
    • The humidity and air temperature can be controlled by adjusting the lids ventilation panels.
    • Durable, clear, impact resistant cover.
    • Long life base tray where you can either pant direct onto or in seeds tray and pots.
    • Manufactured in the UK

    Dimensions: 38cm x 24cm x 18cm (L x W x H)

    *Please note this is not an electric heated propagator.

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  • Premium Propagator

    Premium Propagator – 52cm

     £24.99

    This Stewarts Premium propagator provides the ideal environment for seedlings and cuttings, encouraging speedier growth.  This ensures great results with flowers, plants, salads, herbs and vegetables.

    • Made from sturdy high-quality recyclable plastic.
    • The humidity and air temperature can be controlled by adjusting the lids ventilation panels.
    • Durable, clear, impact resistant cover.
    • Long life base tray where you can either pant direct onto or in seeds tray and pots.
    • Manufactured in the UK

    Dimensions: 52cm x 42cm x 26cm (L x W x H)

    *Please note this is not an electric heated propagator.

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  • Thermostatically Controlled Propagator

    Premium Thermostatically Controlled Propagator – 38cm

     £44.99

    This Stewarts Premium electric heated propagator provides the ideal environment for seedlings and cuttings.

    Gentle heat from the base warms the compost evenly maintaining a fixed temperature within the propagator, stimulating germination and rooting. Warm air is trapped under the rigid clear thermoform cover to maintain a moist atmosphere and protect developing plants from draughts and drying out.

    • Thermostatically control automatically maintains the ideal growing temperature of between 18-23 degrees centigrade.
    • Long life, economical 8 watt heater.
    • A sealed heating unit with insulation beneath the carbon heating mat maintains compost temperature.
    • The humidity and air temperature can be controlled by adjusting the lids ventilation panels.
    • Durable, clear, impact resistant cover.
    • Long life base tray where you can either pant direct onto or in seeds tray and pots.
    • Supplied with 1 seed tray & 6 flower pots.
    • Fitted with UK 3 pin plug

    Dimensions: 19cm x 24cm x 38cm (H x W x L)

    * Includes a starter kit with 1 seed tray & 6 flowerpots and a guide to successful propagation.

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  • Thermostatically Controlled Propagator

    Premium Thermostatically Controlled Propagator – 52cm

     £57.99

    This Stewarts Premium electric heated propagator provides the ideal environment for seedlings and cuttings.

    Gentle heat from the base warms the compost evenly maintaining a fixed temperature within the propagator, stimulating germination and rooting. Warm air is trapped under the rigid clear thermoform cover to maintain a moist atmosphere and protect developing plants from draughts and drying out.

    • Thermostatically control automatically maintains the ideal growing temperature of between 18-23 degrees centigrade.
    • Long life, economical 8 watt heater.
    • A sealed heating unit with insulation beneath the carbon heating mat maintains compost temperature.
    • The humidity and air temperature can be controlled by adjusting the lids ventilation panels.
    • Durable, clear, impact resistant cover.
    • Long life base tray where you can either pant direct onto or in seeds tray and pots.
    • Supplied with 1 seed tray & 6 flower pots.
    • Fitted with UK 3 pin plug

    Dimensions: 52cm x 42cm x 28cm (L x W x H)

    * Includes a starter kit with 1 seed tray & 6 flowerpots and a guide to successful propagation.

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