Do I need all three bottles?

Yes for the full cycle. Flora Gro carries veg, Flora Bloom carries flower, and Flora Micro supplies calcium and micronutrients throughout. Skipping Micro is the most common cause of deficiencies.

Can I use it in soil as well as hydroponics?

Yes. It is designed for hydroponics but works in soil and coco with adjusted strength. Use the weaker soil schedule and water to runoff.

How is it different from a one-part nutrient?

A one-part nutrient is simpler but fixed. The three-part lets you shift the nitrogen-to-potassium balance between veg and bloom, at the cost of more measuring.

What order do I mix the bottles?

Add Flora Micro to water first and stir, then Flora Gro, then Flora Bloom. Mixing Micro last can cause precipitation and lockout.

How much does a pint set make?

A pint of each goes a long way at typical dilution rates, but how long it lasts depends on reservoir size and feed strength. Small gardens often run a full cycle on one set.

Where is the GH Flora Series 3-Part System cheapest?

At Walmart, for $37.74, as of our latest check.

What do buyers say about the GH Flora Series 3-Part System?

Rated 5 out of 5 from 1 ratings.

General Hydroponics

GH Flora Series 3-Part System

Best price now

$37.74at WalmartChecked 13 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

General Hydroponics

GH Flora Series 3-Part System

Best price now

$37.74at WalmartChecked 13 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $37.74 at Walmart on Nov 13.

Our take on the GH Flora Series 3-Part System

The Flora Series is General Hydroponics' three-bottle nutrient system for hydroponics and soil growing. Flora Gro (2-1-6) pushes leafy growth, Flora Micro (5-0-1) supplies calcium, micronutrients and nitrogen, and Flora Bloom (0-5-4) drives flowering and fruiting. You mix the three in different ratios by growth stage, so one set covers a full cycle. It is the reference three-part formula many growers compare others against, and it is more flexible but more work than one-part nutrients.

Best forHydroponic and coco growersSoil growers who want stage-by-stage controlBeginners following a published feed chartGrowers running a full veg-to-bloom cycle

Pros

Three bottles cover the whole grow cycle
Adjustable ratios for veg, transition and bloom
Flora Micro adds calcium and micronutrients
Widely used, so feed charts and advice are easy to find
Pints are a reasonable size for small gardens

Cons

Three bottles mean three measurements per mix
Synthetic salts need regular reservoir changes and pH checks
Easy to overfeed if you ignore the chart
Not a one-part formula for low-effort growers

GH Flora Series 3-Part System prices at every store

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In stock
$37.74Checked 13 h ago
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GH Flora Series 3-Part System price history

Lowest price we've seen: $37.74 on Nov 14 at Walmart. Tracked across 1 store since Nov 14.

What reviewers say

Growers treat the Flora Series as a dependable standard, praising predictable results and the flexibility of mixing ratios. Complaints center on the workload of measuring three parts and on salt buildup when schedules slip.

What people mention

ResultsPraisedGrowers report healthy, consistent growth when they follow the chart.
Mixing effortCriticisedMeasuring three bottles for every reservoir is seen as a chore.
FlexibilityPraisedAdjustable ratios let growers tune feeding to each stage.
Salt buildupCriticisedSynthetic salts leave residue that needs regular cleaning.
GuidancePraisedPublished feed charts make dosing straightforward for newcomers.

About the GH Flora Series 3-Part System

The GH Flora Series 3-Part System from General Hydroponics is a set of three synthetic fertilizers. It includes Flora Gro, Flora Micro and Flora Bloom.

Each part has its own NPK ratio. Flora Gro is 2-1-6, Flora Micro is 5-0-1 and Flora Bloom is 0-5-4. The set comes in 16 oz pints and is recommended for indoor use.

Includes: Flora Gro (2-1-6), Flora Micro (5-0-1), Flora Bloom (0-5-4)
Fertilizer type: Synthetic
Size: 16 oz pints
Count: 3 per pack
Weight: 1 lb
Location: Indoor

Specifications

Fertilizer type: SyntheticSource
Npk ratio: 2-1-6Source
Form: SpikesSource
Rec. use: LawnSource

Questions and answers

Do I need all three bottles?: Yes for the full cycle. Flora Gro carries veg, Flora Bloom carries flower, and Flora Micro supplies calcium and micronutrients throughout. Skipping Micro is the most common cause of deficiencies.
Can I use it in soil as well as hydroponics?: Yes. It is designed for hydroponics but works in soil and coco with adjusted strength. Use the weaker soil schedule and water to runoff.
How is it different from a one-part nutrient?: A one-part nutrient is simpler but fixed. The three-part lets you shift the nitrogen-to-potassium balance between veg and bloom, at the cost of more measuring.
What order do I mix the bottles?: Add Flora Micro to water first and stir, then Flora Gro, then Flora Bloom. Mixing Micro last can cause precipitation and lockout.
How much does a pint set make?: A pint of each goes a long way at typical dilution rates, but how long it lasts depends on reservoir size and feed strength. Small gardens often run a full cycle on one set.
Where is the GH Flora Series 3-Part System cheapest?: At Walmart, for $37.74, as of our latest check.
What do buyers say about the GH Flora Series 3-Part System?: Rated 5 out of 5 from 1 ratings.