strength fertilizer for plants Silica Strength – Liquid Potassium Silica (4.5%) Concentrate

Support strong stems, healthy leaves, stress resilience, and vitality.

This concentrated liquid silica supplement strengthens your houseplants from the inside out. With 4.5% potassium silicate, it helps build thicker cell walls, boost structure, and protect plants from heat, transplant shock, and other stressors and damage. Ideal for helping houseplants grow upright, bounce back from stress, and grow larger leaves, and maintain their vitality.

Why You'll Love It:

✅ Builds upright stems and thicker, sturdier leaves
✅ Helps plants recover from heat, drought, and transplant shock
✅ Reduces browning, tearing, and drooping in delicate foliage
✅ Concentrated for superior value—8 oz bottle makes up to 96 gallons, at least 4x the amount of other silica products
✅ Formulated by plant experts, safe for all houseplants

How to Use:

Mix 1 teaspoon per gallon of water and apply every 2–4 weeks.
Use as a soil drench. Do not mix with fertilizer—apply separately as part of your care routine.

What's Included:

• 8 oz bottle of liquid Silica Strength

• Factory-sealed for leak-free delivery

• Flip-top cap for easy measuring

• Simple directions and tips on the label

Backed by Real Plant People

Created by the team behind Monstera Plant Food and Fiddle Leaf Fig Rescue Drops, Silica Strength is developed and made in the USA with quality ingredients and no harsh additives, and trusted by plant parents to protect and support their most prized plants.