Jack's Classic Blossom Booster 10-30-20 1.5 lb Review

A 1.5 lb 10-30-20 water-soluble fertilizer with micronutrients for flowering plants and container bloom routines.

Seller pricing varies Updated May 20, 2026

Bottom line

Jack's Classic Blossom Booster gives flowering plant care a compact 10-30-20 tub for measured water-soluble feeding.

Jack's Classic Blossom Booster 10-30-20 water-soluble fertilizer 1.5 lb tub

What this review covers

This review focuses on the 1.5 lb tub, 10-30-20 formula, micronutrient note, and the dry-scoop habits that support flowering plant feed days.

The upside

  • The 10-30-20 formula gives flowering plant care a focused water-soluble feed.
  • The 1.5 lb tub is easy to store near container flower supplies.
  • Micronutrients are included in the formula.

The tradeoffs

  • The scoop and tub need to stay dry between batches.
  • Flowering formulas benefit from clear plant groups and feed dates.

Fit and feel

Good match:

This tub fits gardeners who want a compact water-soluble fertilizer for flowering plants, containers, and greenhouse bench care.

What to know:

Record the feeding date and plant group. Flowering plant care feels easier when the next batch starts from a clear note.

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Full review

A compact tub for flowering plant feeding

Jack’s Classic Blossom Booster is a 1.5 lb tub of 10-30-20 water-soluble fertilizer with micronutrients. It fits flowering plants, container displays, greenhouse benches, and garden shelves where bloom-stage feeding has its own place.

The tub size is easy to manage and simple to keep near a measuring spoon or scoop.

The formula has a clear role

The 10-30-20 formula points this product toward flowering plant care. That focus makes the tub useful around annual containers, flowering porch pots, and greenhouse plant groups that follow a measured feed routine.

Read the label before each batch and mix the amount for the plant group in front of you.

Keep the scoop dry

Water-soluble fertilizer stays easier to use when the scoop, rim, and lid stay dry. Measure the amount, close the tub, then mix the batch fully before watering.

A small shelf tray can keep the tub, scoop, and notes together through the season.

Good match

This tub fits gardeners who want a compact water-soluble fertilizer for flowering plants, containers, and greenhouse bench care.

What to know

Record the feeding date and plant group. Flowering plant care feels easier when the next batch starts from a clear note.