Horticultural perlite

Sinclair Horticultural Standard Perlite Soil Amendment 100L

£29.90
Introducing Sinclair Horticultural Standard Perlite 100lt — a lightweight, horticultural-grade soil amendment that elevates the performance of your potting mixes and compost.
IN STOCKReady to despatch — we aim to despatch within 24 hours
Calculate your delivery cost Enter your UK postcode to see the available services and prices.

Rates are calculated for your full basket. If this product is not already in your basket, the selected option and quantity will be added before calculation.

We aim to despatch in-stock orders within 24 hours. Orders placed Friday–Sunday are despatched Monday, excluding bank holidays. Final availability is confirmed at checkout.

30-day returns
Secure checkout
Friendly help
Buddy - House, Home & Garden

Need a little help?

Ask Buddy about this product, how it works, whether it is right for you and what else you might need.

Product typeCompost & Growing Media
BrandAK Kin Garden Supplies
Product badge
Product codePER

Product overview

Introducing Sinclair Horticultural Standard Perlite 100lt — a lightweight, horticultural-grade soil amendment that elevates the performance of your potting mixes and compost. Crafted with a distinctive honeycomb internal cell structure, it actively improves aeration and drainage, helping roots breathe and encouraging healthier growth. The honeycomb cells create open porosity within your growing medium, reducing compaction and promoting uniform root development....

Read the full product information

Introducing Sinclair Horticultural Standard Perlite 100lt — a lightweight, horticultural-grade soil amendment that elevates the performance of your potting mixes and compost. Crafted with a distinctive honeycomb internal cell structure, it actively improves aeration and drainage, helping roots breathe and encouraging healthier growth.

The honeycomb cells create open porosity within your growing medium, reducing compaction and promoting uniform root development. By insulating the compost, this perlite dampens large temperature fluctuations that can stress plants, delivering more stable conditions from day to night and across fluctuating outdoor weather.

Available in a superfine grade, Sinclair Perlite delivers maximum moisture retention without oversaturation, making it ideal for young transplants, seedling trays, and container gardens where precise moisture control matters. This combination of excellent aeration and moisture management helps you achieve stronger establishment and more consistent yields.

  • boosts aeration, improves drainage, insulates compost, and moderates temperature swings.
  • healthier root systems, reduced transplant stress, and steadier moisture levels in varied conditions.
  • a single 100lt bag provides ample supply for multiple beds, pots, or trays, making it a practical staple for home and professional setups.

Whether you’re refining a potting mix, refreshing a compost blend, or preparing seed trays, Sinclair Horticultural Standard Perlite 100lt helps you create a more forgiving growing environment. Add it to your soil strategy and experience cleaner drainage, steadier moisture, and robust root formation over the growing season.

Product highlights

Why you’ll love it

The key benefits and features that make this product a useful choice.

01

Improves root-zone aeration

02

Reduces compaction

03

Lightweight and easy to mix

04

Practical 100lt pack

Simple guidance

How to use

Follow the available product guidance to get the best result.

1

Step 1

Read the pack and select the correct mixing rate.

2

Step 2

Measure the additive rather than estimating.

3

Step 3

Blend evenly through the growing medium.

4

Step 4

Plant, water and monitor moisture before watering again.

Product information

Frequently asked questions

Helpful answers to common questions about this product.

Can it be used on its own?

It is normally mixed with compost or soil; follow the product instructions.

How much should I add?

Use the rate stated on the packaging for the plant and application.

Is it dusty?

Mineral growing-media additives can create dust; handle gently and avoid inhalation.

How should it be stored?

Keep sealed and dry away from children and pets.

Customer feedback

Reviews

See what other HHG customers think about this product.

Shop with confidence

Why shop with HHG?

Fast despatch

We aim to despatch in-stock orders within 24 hours.

Easy returns

A straightforward 30-day online returns process.

Secure checkout

Pay safely using your preferred available payment option.

Helpful support

Friendly help from our family-run UK business.