FoxFarm Open Sesame Soluble Fertilizer - 5-45-19 - 15 lb Jar

High-Phosphorus Bloom Feed for Early Flowering - 15 lb Jar

Plants entering flowering need a nutrient profile that differs from vegetative growth, and a general-purpose feed often does not supply it. This soluble fertilizer has an NPK of 5-45-19, with phosphorus as the dominant number, and it is designed for the early weeks of flowering to support vigorous blooming. It dissolves in water and goes to work at the root zone.

The 15 lb jar suits growers who feed regularly across several plants or several cycles. It gives a regular indoor grower a steady supply without frequent reordering, and it suits small commercial rooms that want one bloom-stage product on hand.

Key Features & Benefits

• 5-45-19 NPK — high phosphorus targets the early flowering stage.
• Soluble formula — mixes into water for delivery at the root zone.
• Flexible use — works in hydroponic systems, containers and soil.
• 15 lb jar — enough product for repeated feedings.

Who Should Use FoxFarm Open Sesame

Growers who want a dedicated bloom-stage feed for the early weeks of flowering, whether in hydroponic systems, containers or soil. It fits home gardeners with several plants and commercial operations that run regular feeding schedules.

About FoxFarm Open Sesame

Open Sesame is a FoxFarm soluble fertilizer with a 5-45-19 NPK. The manufacturer describes it as a high-phosphorus formula for early flowering. It is sold as a single 15 lb jar.

Frequently Asked Questions

Q: When should I start feeding with Open Sesame?
A: The manufacturer suggests starting at about the fifth or sixth week of a plant's life. Use it during the early weeks of flowering.

Q: How often should I feed it?
A: The manufacturer's tip is to feed with it every other watering. Follow the label for mixing rates.

Q: Can I use it in hydroponic systems?
A: Yes. The manufacturer states it works in hydroponic systems, containers and soil. Because it is soluble, it mixes into water for delivery at the root zone.

Q: What does 5-45-19 mean?
A: The three numbers are the percentages of nitrogen, phosphorus and potassium in the fertilizer. A high middle number means this formula is rich in phosphorus, which suits the flowering stage.

Q: How does a bloom fertilizer differ from a vegetative one?
A: Vegetative formulas generally lean toward nitrogen to support leaf and stem growth. Bloom formulas like this one shift toward phosphorus and potassium for flowering.