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Plain Packaging Used Plain Packaging Used
Product Name Qty Price
Hyshield 500ml
Hyshield 1L


HYSHIELD™ tricks plants into thinking they are being attacked by pests. The plant responds to the attack by ramping up its immune response going into protective mode. These natural defence mechanisms not only stimulates the plant immune system to fight off pathogens and pests but also gets the plant running at its peak performance level making the nutrient uptake smooth.

This unique formula when applied to crops as a foliar spray or drench, can increase your plant’s resilience to survive in high heat and cold stress environments.

Designed to be compatible with water-soluble nutrients & supplement programs, HYSHIELD™ can help boost your yield and enhances conditions for better plant growth.


  • Effective in all Growing Media & Growth Stages
  • Enhanced Flowers and Fruit
  • Reduces Transpiration Without Lower Crop Output
  • Improves Plant Survival in High Heat & Cold Environments
  • Supports Nutrient Uptake
  • Manufactured in a facility whose quality management is certified ISO 9001:2015


    Dilute 0.12 – 0.25 oz per gallon (1 mL – 2 mL per L) of water and spray with lights turned off on foliage 3-5 times per week.

    Mix 0.12 – 0.25 oz per gallon (1 mL – 2 mL per L) of water or nutrient solution. Recommended to be used with every watering or as determined by your feeding schedule. (Only use with water soluble nutrients)

    Dilute 0.12 – 0.25 oz per gallon (1 mL to 2 mL per L) of water and apply directly to root zone 3-5 times per week.


  • HYSHIELD’s™ unique formula is derived from exoskeletons of crustaceans. Chitosan, the active ingredient in HYSHIELD™, is extracted from crab shells, which are a by-product of the crab fisheries.
  • Chitosan as a derivate of the naturally occurring compound Chitin, when given to plants helps activate the plant’s natural defense mechanisms fighting any potential diseases, pests and pathogens.
  • HYSHIELD™ has been created with an environmentally sustainable approach in mind using crab and shrimp shells that would otherwise be discarded in landfills.
  • Our innovative formula provides the necessary boost your plants require.
Delivery & Returns
Next Day Delivery 12 Noon
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or customerservice@hollandhorticulture.co.uk and we can arrange a free collection.
Click & Collect
Click & Collect
Next day delivery not quick enough? Why not Click & Collect from our Manchester store within the hour*. Simply pay online & collect in-store!

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