Stewart Propagators

Stewart Heated & Unheated Propagators – Simple, Reliable Propagation

Looking to improve your success rate when starting seeds or rooting cuttings? The Stewart Propagator range offers a no-fuss way to create the warm, humid conditions young plants thrive in. Available in medium or large sizes, with or without heat – it’s one of the easiest upgrades for your propagation game.

Why Choose a Stewart Propagator?

• Proven Results – Trusted by growers for decades, these UK-made propagators are known for reliability and consistency.
• Heated or Unheated Options – Choose a heated model for faster rooting and better control, or go unheated for ambient conditions.
• Durable Construction – Rigid plastic base and clear lid with adjustable vents give long-lasting performance.
• Great Value – Low-cost solution that dramatically improves early plant growth and survival rates.

Available Sizes & Specs

• Medium (Unheated or Heated) – 38cm (L) x 21.5cm (W) x 24cm (H)
• Large (Unheated or Heated) – 52cm (L) x 42cm (W) x 28cm (H)

Which One Should You Choose?

• Medium Unheated – Ideal for smaller spaces or casual propagation
• Large Unheated – More room for trays and bigger cuttings
• Medium Heated – Better root success in cooler spaces
• Large Heated – Perfect for serious growers who want control and capacity

Why Use a Propagator?

Seeds and cuttings need consistent warmth and humidity to root properly. Even a slight temperature dip or dry air can stall growth. Propagators prevent that by keeping the environment stable, leading to faster, healthier root development and higher success rates.

Top Tip:

Pair your propagator with a hygrometer and Clonex Rooting Gel for the best start.

To see our full range of propagation tools and supplies, click here.