Hydrogel moisture crystals retain moisture for slow release in your medium.
A polymer crystal releasing moisture it can hold up to 200 times its weight in water, releasing slowly over 95%of the water stored to plants as needed. It is neutral in pH non toxic and biodegradable watering can be reduced by 30-50%. Mix into soil while in crystal form.
Clearance Sale:
100G Was £7.90 Now £1.95.
Only 3 left in stock