FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 1lb Jar

Soluble Bloom Start in a Mix-and-Apply Format

FoxFarm Open Sesame 5-45-19 is a water-soluble, high-phosphorus fertilizer formulated for use during the early weeks of flowering. It dissolves completely for direct application to the root zone in soil, container, and hydroponic setups. A low-pH formulation helps maintain micronutrient availability and keeps the solution stable.

The 1lb jar offers enough product for multiple bloom cycles and suits home growers managing small-to-mid-scale flowering crops.

Key Features & Benefits

• 5-45-19 NPK — Heavy phosphorus loading triggers early bud set and supports robust flower development during the transition to bloom.
• Fully Soluble Formula — Dissolves quickly for direct root zone application in soil, coco, rockwool, and hydroponic reservoirs.
• Low-pH Stable — Acidic formulation preserves phosphorus solubility and ensures consistent nutrient delivery to the root zone.
• Sequential Bloom Program Fit — Designed to complement the FoxFarm soluble trio — Open Sesame initiates, Beastie Bloomz continues, and Cha-Ching finishes.
• Compatible Media — Approved for use in soil, containers, coco coir, and hydroponic systems.

Who Should Use This Product

FoxFarm Open Sesame 5-45-19 is suited to growers running flowering crops in any media type — soil, container, coco, or hydroponic. It is particularly effective for growers who follow a sequential soluble feeding approach and want to develop early bud set before transitioning to a mid-bloom formula.

Application Notes

Dissolve in water before application. Refer to the FoxFarm feeding schedule for dosage by crop type and growth stage. For hydroponic use, adjust reservoir pH after mixing. Open Sesame works in rotation with Beastie Bloomz and Cha-Ching for a complete bloom sequence.

Frequently Asked Questions

What growth stage should I use Open Sesame?

Open Sesame is formulated for the early weeks of flowering. Begin application at the first signs of flower development and transition to Beastie Bloomz as bloom progresses.

Can I use Open Sesame in hydroponics?

Yes. Open Sesame dissolves fully for hydroponic reservoir application. Adjust pH after mixing as the formula has a naturally low pH.

Does Open Sesame work with FoxFarm's other solubles?

It is designed as the first stage in a three-part sequence with Beastie Bloomz and Cha-Ching, forming a complete early-to-late bloom program.

How should I store Open Sesame?

Store in a cool, dry location away from direct sunlight. Keep the lid sealed tightly to maintain solubility and prevent clumping.

Is Open Sesame safe for use with soil microbes?

Follow application guidelines and avoid over-application. As with any fertilizer, excessive use can disrupt beneficial soil biology.