Emerald Harvest - Sturdy Stalk


Size: 0.95 Litre
Sale price£32.99

Improves the Structural Integrity of the Plant

Sturdy Stalk contains an abundant source of silica, which works to thicken up stems and strengthen branches, allowing them to support more weight. It does this by acting on each cell individually, strengthening their outer walls. Stonger cell walls make for stronger plants, so you can expect to see improved growth rates and bigger crops. For more information take a look at our Emerald Harvest Blog.

How Sturdy Stalk Works

Sturdy Stalk works by toughening up the walls of individual plant cells. This gives a greater level of mechanical strength to the plant as a whole. Think of the cells as being like the brickwork in a structure, and the cell walls as being like the cement. Stronger cement naturally paves the way for a greater level of structural integrity. This creates plants that are better able to support the weight of extremely heavy fruits and less reliant on outside support nets, etc.

The structure-enhancing properties of Sturdy Stalk also work against pests and diseases – insects find it much harder to penetrate leaf matter and plants develop a resilience to ongoing threats from pathogenic bacteria and fungi, aswell as negative changes in the environment.

Silicon also heightens chlorophyll levels within the plant. Chlorophyll is vital to photosynthesis - the process where light energy is used to take CO2 from the surrounding atmosphere and split it down into its component parts of carbon and oxygen. The carbon is used to manufacture vital sugars and the oxygen is then released as a by-product. By improving photosynthesis rates, plant growth can be sped up dramatically, so you can reasonibly expect to see improvements in the quality and size of the end-product. Silicon also helps plants regulate water-loss.



1 x bottle of Emerald Harvest Sturdy Stalk. Choose from 0.95 litre, 1.89 litre, 3.79 litre and 9.46 litre sizes.


  • Part of the Emerald Harvest range - California's finest nutrient brand
  • A naturally occuring substance that can be found in soil
  • Strengthens individual cell walls for all-round stronger plants
  • Increases chlorophyl production for enhanced photosynthesis
  • Raises the pH of your nutrient reservoir
  • Improves plants' reistance to pests and diseases
  • Delivers exceptional results in all types of media, whether it’s hydroponic, aeroponic, coco or soil based

How To Use

How to Use Sturdy Stalk

Silicon is an additive that can be used from the moment your cuttings or seedlings develop roots, right up to the final flowering stages (just before flushing). Add it at a rate 1.3ml per litre of nutrient solution finishing two weeks before harvest. A copy of the Emerald Harvest feed chart can be found by clicking the link below this description.

As with all nutrients, boosters and additives, never mix them together in their concentrated form (i.e. straight out of the bottle). Always add each nutrient, booster or additive to your reservoir or feed water in turn, giving the solution a good stir to mix it in before adding the next one.

Guaranteed analysis: 0-0-1

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