Humboldt Nutrients Big Up Powder - 8 oz - 0-33-23 Bloom Booster

Phosphorus and Potassium for the Flowering Stage - 8 oz Powder

Plants in flowering draw heavily on phosphorus and potassium, and a feeding program that runs short can limit the finish. This powder supplies both in a soluble form, with a 0-33-23 analysis that carries no nitrogen. That lets you add bloom-stage support without adding more nitrogen.

The 8 oz size suits a home gardener trying a bloom booster for the first time, or a small indoor setup that wants to test it on a single cycle before buying more.

Key Features & Benefits

• 33% available phosphate (P2O5) — supports energy transfer and root development during flowering.
• 23% soluble potash (K2O) — supports overall plant health and water balance.
• Monopotassium phosphate and Ascophyllum nodosum sources — the phosphorus and potassium come from these listed ingredients.
• 2% humic acid from leonardite — listed as a non-plant-food ingredient.
• Powder format — dissolves for use in soil or hydroponic systems.

Who Should Use Humboldt Nutrients Big Up Powder

Growers who want to support plants through the flowering stage, in soil or hydroponic systems. Home gardeners and small indoor growers will find the 8 oz size easy to trial.

About Humboldt Nutrients Big Up Powder

Humboldt Nutrients makes Big Up Powder as a bloom booster. The guaranteed analysis is 0-33-23: 33% available phosphate (P2O5) and 23% soluble potash (K2O). It is derived from monopotassium phosphate and Ascophyllum nodosum, and it contains 2% humic acid derived from leonardite. It is sold as a single 8 oz unit.

Frequently Asked Questions

Q: What does 0-33-23 mean?
A: The three numbers are nitrogen, available phosphate (P2O5) and soluble potash (K2O). This product has no nitrogen, 33% phosphate and 23% potash.

Q: When should I use a bloom booster?
A: Bloom boosters are meant for the flowering stage, when plants need more phosphorus and potassium. Follow the directions on the label for timing and rate.

Q: Can I use it in hydroponic systems?
A: The manufacturer describes it for use in soil or hydroponic systems. Check the label for mixing guidance and confirm your reservoir solution before feeding.

Q: Does it contain nitrogen?
A: No. The nitrogen figure in the 0-33-23 analysis is zero, so it is not a complete feed on its own.

Q: What is humic acid?
A: Humic acid is an organic substance derived here from leonardite. It is listed on the label as a non-plant-food ingredient at 2%.