Age Old Bloom 5-10-5 Liquid Fertilizer, 55 gal

Give Flowering Plants the Phosphorus Push They're Asking For, 55 gal

Once plants shift into flowering, their nutrient needs shift too, and heavy nitrogen feeds that worked during vegetative growth can leave them short on the phosphorus that drives flower and fruit development. Age Old Bloom 5-10-5 is an odorless formula built around a fast-acting, natural phosphorus source, supplying the higher phosphate levels that encourage earlier flowering and better fruit set across most fruiting plants and vegetables.

Age Old Bloom ships in a 55 gal container, matched to commercial growers feeding at full scale.

Key Features & Benefits

• Odorless 5-10-5 formula — supplies a fast-acting, natural source of phosphorus without the smell of conventional bloom feeds.
• Elevated phosphate levels — encourage earlier flowering and stronger fruit set across most fruiting plants and vegetables.
• Works as foliar feed or soil drench — fits whatever feeding method already suits your space and schedule.
• Doubles as a transplant root soak — lets you soak roots in diluted Bloom before transplanting to help build a fuller root mass.
• Rated for greenhouse, container, and field use — holds up whether the crop is under grow lights, in a poly greenhouse, or out in open sun.

Who Should Use Age Old Bloom

Growers transitioning plants into the flowering stage who want a natural, odorless phosphorus source that supports earlier flowering and stronger fruit set, whether feeding a few containers or a full operation, with the 55 gal size matched to that scale.

About Age Old Nutrients Bloom 5-10-5

Age Old Nutrients, also sold as Age Old Organics, has formulated natural-based plant fertilizers since 1984, blending traditional growing practices with ingredient science for greenhouses, container gardens, and commercial cultivation. Bloom 5-10-5 is designed to follow Age Old Grow as plants move from vegetative growth into flowering — feed with Grow through the vegetative stage, then transition to Bloom once flowering begins, choosing a size for each that matches how much you're feeding.

Frequently Asked Questions

When should I start feeding with Age Old Bloom?

Most growers transition from Age Old Grow to Bloom once plants begin flowering, when phosphorus needs increase and flower or fruit development ramps up. Switching at that point rather than earlier keeps the vegetative-stage nitrogen boost from Grow intact.

Can Bloom be used as a root soak for transplants?

Yes, diluted Bloom can be used to soak roots before transplanting, which many growers use to encourage a fuller root mass at the start of a cycle. It's an optional step on top of the standard foliar or drench applications.

Is Age Old Bloom safe for vegetables as well as ornamentals?

Yes, it's labeled for use on most fruiting plants and vegetables as well as ornamental plants, indoors or outdoors. The 5-10-5 phosphorus emphasis suits any crop moving into a flowering or fruiting stage.

What's the NPK analysis of Age Old Bloom?

Bloom carries a 5-10-5 analysis, with elevated phosphorus levels designed to encourage earlier flowering and stronger fruit set. That's a shift from Grow's 12-6-6 ratio, which favors nitrogen for vegetative structure instead.

How do I apply Age Old Bloom to an existing feeding program?

Apply it as a foliar feed or soil drench once plants begin flowering, layering it onto whatever base feeding routine you're already running. Because it's a natural, odorless formula, it doesn't require special handling beyond standard dilution.