We're offering you a Chempak Sulphur 750g for £6.99, saving you up to 13% off Thompson and Morgan's's price of £7.99 (correct as of 19.08.2025).

Support Thriving Ericaceous Plants with Chempak Sulphur

Give your acid-loving plants the best start by managing your garden soil’s pH with Chempakae Sulphur. Specially developed for ericaceous varieties—such as rhododendrons, azaleas, camellias, and blueberries—this slow-release sulphur chip formula gradually reduces soil alkalinity, helping your plants access vital nutrients and grow vigorously.

Why Choose Chempakae Sulphur?

• Gradual Soil Acidification: Lowers pH over time, making it perfect for gardens with limey or alkaline soils where ericaceous plants struggle.
• Prevents Trace Element Deficiencies: Ensures your plants don’t suffer from yellowing leaves or poor growth caused by unsuitable soil conditions.
• Long-Lasting Results: The slow-release chip formula delivers consistent sulphur over an extended period, reducing the need for frequent applications.
• Simple to Use: Apply directly to the soil surface or mix in at planting time for effective results.

Planting & Care Guide

• When to Apply: Use in early spring or autumn when preparing new beds, or top-dress established plants as needed.
• How to Use: Sprinkle evenly around the base of acid-loving plants and lightly fork into the topsoil. Water thoroughly after application.
• Soil Preferences: Works best in loamy or sandy soils; always test soil pH before use to avoid over-acidification.
• Nutrient Boost: Pair with an ericaceous fertiliser for optimal plant health and abundant blooms.

Garden Design Tips

• Create Stunning Borders: Combine with heathers, pieris, and hydrangeas that also prefer acidic conditions.
• Pots & Containers: Ideal for growing blueberries or camellias in pots—simply add to ericaceous compost for best results.
• Cottage & Woodland Gardens: Use to establish naturalistic plantings under trees where soil is often too alkaline for ericaceous species.

FAQs

• When is the best time to apply Chempak Sulphur?
  The best times are early spring or autumn, but you can apply whenever your soil pH needs adjustment.
• How quickly does it lower soil pH?
  The slow-release formula works gradually over several weeks—always re-test your soil before reapplying.
• Which plants benefit most from Chempak Sulphur?
  This product is ideal for rhododendrons, azaleas, camellias, blueberries, heathers, and other acid-loving species.