Optic Foliar Switch, 120 L

Foliar Nutrients for Blossom Set During Early Flowering, 120L

The first two weeks of flowering set how many blossom sites a plant ultimately develops, and a nutrient program that isn't tuned to that specific window can leave blossom set formation weaker than it could be. Optic Foliar Switch is formulated to provide the nutrients required for blossom set formation and flower site development, applied specifically during that early flowering window.

This 120L size is built for large commercial operations that need a bulk supply.

Key Features & Benefits

• Blossom set formation support — supplies the nutrients tied to blossom set formation specifically.
• Flower site development — supports the plant's development of flower sites during early flowering.
• Timed to early flowering — applied during the first two weeks of flowering rather than throughout the whole flowering stage.
• Foliar delivery — applied directly to foliage for leaf-level nutrient uptake at this critical window.

Who Should Use Switch

Growers entering the first two weeks of flowering who want a foliar feed tuned specifically to blossom set formation and flower site development fit this product.

About Optic Foliar

Optic Foliar, based in Delta, British Columbia, builds foliar products around specific growth windows, and Switch is timed to the first two weeks of flowering when blossom set formation is underway.

Frequently Asked Questions

What does Switch do?

It provides the nutrients required for blossom set formation and flower site development, targeted at the specific window when a plant is setting its flowering sites. Outside that window, a standard flowering nutrient program takes over.

When should I apply Switch?

Apply it during the first two weeks of flowering, rather than across the entire flowering period, since that's the window when blossom set formation is happening. Applying it later in flowering misses the window it's formulated for.

Do I stop using my base flowering nutrients while using Switch?

No, Switch is a foliar-applied supplement timed to a specific window; continue your base flowering nutrient program alongside it rather than replacing it. Switch is designed to layer onto that base program, not stand in for it.

How is Switch applied?

Apply it as a foliar spray per the label rate during the labeled first-two-weeks flowering window. Consistent daily application during that window matters more than a single heavy dose.

Which size should I choose?

Sizes range from 1L for smaller gardens up through 208L for large commercial operations; match the size to your plant count and how often you want to reorder. Every Switch size carries the same concentrate, so sizing depends on your reservoir volume rather than looking for extra strength.