8x Replacement Capillary Felt Mats – Seed Tray Watering Mats

Effortless, Automatic Plant Hydration – 8 Replacement Capillary Mats

Give your seedlings and greenhouse plants the consistent moisture they need with these premium replacement capillary mats. Designed for gardeners who want reliable, low-maintenance plant care, this set of 8 black felt growing mats uses capillary action to deliver steady hydration to roots — no more guessing when to water, no more over- or under-watered seedlings.

Why You'll Love These Capillary Mats

• Seamless Automatic Watering: Capillary wicking draws water up into the mat and delivers it directly to plant roots, keeping seedlings consistently hydrated without constant attention.
• Premium Felt Material: Made from top-grade, highly absorbent felt that is both stain-resistant and durable — built to last through multiple planting cycles.
• Cut-to-Fit Versatility: Easily trimmed to fit any seed tray, propagation tray, or greenhouse bench. Works with standard and custom-sized trays alike.
• Efficient Water Retention: Retains moisture effectively between waterings, reducing how often you need to top up your reservoir and saving both time and water.
• 8-Piece Value Set: Comes with 8 replacement mats so you always have spares on hand — swap out worn mats instantly for uninterrupted, smooth gardening maintenance.
• Reusable & Eco-Friendly: Long-lasting reusability means fewer replacements and less waste, making these mats a sustainable choice for the environmentally conscious gardener.

Product Specifications

• Material: Felt
• Size Option 1: Approx. 45 × 9 cm / 17.72 × 3.54 inches
• Size Option 2: Approx. 33 × 20 cm / 12.99 × 7.87 inches
• Quantity: 8 capillary mats per set
• Color: Black

Perfect For

• Greenhouse seed starting & propagation
• Indoor seedling trays & grow benches
• Lawn & garden care enthusiasts
• Replacing worn mats in existing capillary watering systems

Pair These With Other Gardening Essentials

Round out your gardening toolkit with these popular picks from our store:

• "1% Better Every Day" Motivational Canvas Poster | Wall Art — inspire your green thumb journey.
• "This Is My Happy Place" Canvas Wall Art Print | Home Decor — perfect for your greenhouse or potting shed.

Helpful Gardening Resource

For more tips on sustainable gardening and water-efficient growing practices, visit the EPA WaterSense Gardening Guide — a trusted resource for water-smart plant care.

Note: Due to different screen settings, item color may vary slightly from images. Please allow a 1–2 cm difference in measurements due to manual measuring.

Learn more: Bunnings

Frequently Asked Questions

Q: What size are the replacement capillary mats and will they fit my seed trays?

A: The mats come in two sizes — approximately 45 × 9 cm (17.72 × 3.54 in) and 33 × 20 cm (12.99 × 7.87 in). Because they are made from felt, they can be easily cut to fit any standard or custom seed tray, propagation tray, or greenhouse bench. Simply measure your tray and trim accordingly.

Q: How do capillary mats work for watering plants?

A: Capillary mats work by using capillary action — the natural tendency of water to move through small spaces in a material. The felt mat absorbs water from a reservoir or tray below and wicks it upward and outward, delivering consistent moisture to the base of your plant pots or seedling cells. This prevents both over-watering and under-watering.

Q: Are these capillary mats reusable, and how do I clean them?

A: Yes! These felt capillary mats are designed for long-lasting, multi-cycle reuse. To clean, simply rinse them with water to remove soil and debris, then allow them to air dry fully before reuse. Replace them when they show signs of excessive wear, discoloration, or reduced water absorption.

Q: How many mats are included in this set?

A: This set includes 8 black replacement capillary mats, giving you plenty of spares to rotate in and out of your growing trays for seamless, uninterrupted plant care throughout the growing season.