Flowering fertilisers

There are 210 products tagged as Flowering fertilisers

Flowering fertilisers provide the essential food to plants during the second stage of their life cycle, as their nutritional needs increase while flowering. In this second phase of life, they require large amounts of phosphorus and potassium to help plants create large and compact buds covered in trichomes and provide high quality organoleptic properties with excellent aromas and flavours.

At Alchimia we have an ample range of fertilisers for flowering, from different brands and with different NPK ratios, together with micronutrients, which are well balanced for ease of use and to encourage vigorous flowering of cannabis plants.

Flowering nutrients to dilute in water or mix with soil

We can choose between liquid fertilisers and solid fertilisers to feed our plants. Liquid nutrients must be diluted in water prior to use and then applied via irrigation. This makes it easy to increase or decrease fertiliser concentration according to the plants' demand for food in each moment.

Powdered or granulated nutrients are ideal for mixing with the substrate at the start of cultivation or when transplanting, after which you only need to think about providing the correct amount of water for proper development of the flowers. Solid nutrients are suitable for both beginners and the most expert cannabis cultivators because of the terpene content of the flowers.

Organic or mineral flowering fertilisers

In addition to differentiating between liquid and solid fertilisers, we can also choose between organic and mineral fertilisers. Organic flowering nutrients come from natural sources, either vegetable or animal, and take more time to be assimilated by the roots of plants compared to mineral fertilisers which offer more rapid uptake.

Basic differences between organic and mineral flowering fertilisers

As with growth nutrients, the assimilation rate of mineral fertilisers is higher than with organic products. Mineral fertilisers can have a higher nutrient concentration than organic fertilisers, which rarely exceed 9%. Mineral fertilisers can also be easily used in drip irrigation systems, which is not entirely practical with organic fertilisers as many of them can clog up the drippers and lines.

If you wish to reuse your substrate, either indoors or outdoors, it's better to use organic fertilisers, this is because the use of minerals means the substrate will end up being highly saturated with salts and will need to be flushed with large amounts of water before being able to use it again. Otherwise, dispose of the used substrateand use a new, high quality one.

Other elements to complement flowering fertilisers

Flowering nutrients can be complemented with enhancers, boosters, stimulators, beneficial microbesand other additives for cannabis cultivation thus offering a complete diet to ensure the best results at harvest time.

Featured products in Flowering fertilisers

Biobizz Try-pack Outdoor

15.35€ 18.08€

BioCanna fertilizer Kit

55.88€ 69.85€

Biobizz Bio Bloom

From 3.95€ 4.65€

Biobizz Bio Grow

From 10.30€ 12.17€

Fertiliser Kit Plagron Algae

112.45€ 132.35€

Featured offers Flowering fertilisers


12.85€ 16.12€

GUANOKALONG Bat guano powder - 5 Kg
Canna Coco A+B

From 13.05€ 16.36€

Aptus All in One Pellet

From 5.35€ 6.35€

Additive Feeding Calcium

From 13.95€ 19.95€

Bio Technology Bloom A+B

From 11.61€ 12.90€

Latest in Flowering fertilisers

Perfect Plant Pack - BioTabs
Athena Fade

From 24.20€

Buy Flowering fertilisers

210 products Filter tune

Biobizz Try-pack Outdoor

Biobizz has changed its image, and with it, their packs; they are now called Try-pack, and they are specifically prepared for different gr [...]

  • 18.08€ 15.35€
UP TO 15%

Biobizz Bio Grow

Biobizz Bio Grow is a liquid growth fertiliser that promotes lush growth and can be used in almost all soil types. Biobizz Bio Grow is a fertiliser and a s [...]

  • 1 L 12.17€ 10.30€
  • 5 L 53.66€ 45.60€
  • 10L 110.09€

Biobizz Bio Bloom

Biobizz Bio Bloom is a complete liquid organic fertiliser used during the flowering period of the plants. It contains natural minerals, micronutrients, amino acids and hormones of [...]

  • 250 ml 4.65€ 3.95€
  • 1 L 13.26€ 11.25€
  • 5 L 55.79€ 47.40€
  • 10 L 113.43€ 96.40€

Easy Pack Soil by Plagron

Alchimiaweb presents Easy Pack Terra by Plagron. A product set developed for everything needed for indoor or outdoor cultivation, both for growth [...]

  • 18.90€


Alchimia presents Superguano by Top Crop, a natural fertiliser perfect for enriching our cultivation s [...]

  • 1kg 8.50€ 6.35€
  • 5kg 35.00€ 26.25€

BioCanna fertilizer Kit

Bio Canna is the best-selling Dutch bio-fertilizer brand of our catalog, and probably of the Spanish market. Since its emergence, this company has constantly enhanced its r [...]

  • 69.85€ 55.85€

Top MAX de BioBizz

BioBizz TOP MAX is a 100% organic flowering stimulator, which activates cell production and increases flower development. TOP MAX increases the molecular carriage of sugars [...]

  • 250 ml 9.30€ 7.90€
  • 500 ml 16.24€ 13.80€
  • 1 L 30.95€ 26.30€
  • 5 L 126.62€ 107.60€
  • 10 L 251.57€ 213.80€


Biotabs makes life easier. 100% Organic plant cultivation will be very easy, even for beginners. Biotabs are composed of abalanced mix of organic nutrients to effectiv [...]

  • 10 units 15.00€ 12.00€

Guerrilla Tabs

Biotabs presents the Guerrilla Tabs, a slow release organic fertilizer with a N-P-K concentration of 15-7-8, what ensures that our [...]

  • 20 Tabs 14.50€ 11.60€

CANNA Bio Flores (Bloom)

Bio Flores from CANNA has been specially developed for the flowering period of fast growing plants. This fertiliser contains hop extract, which provides ma [...]

  • 1 L 17.09€ 14.50€
  • 5 L 68.35€ 58.05€

Perfect Plant Pack - BioTabs

Alchimia present BioTabs Perfect Plant Pack, the best option for self-growers sensitive to organic products. This set is intended for a complete cycle of 2 large h [...]

  • 22.50€ 20.25€

Plagron Alga Bloom

Plagron Alga Bloom is an organo-mineral flowering fertiliser made with seaweed and designed to stimulate bud production and to revitalise [...]

  • 1L 19.70€ 16.70€
  • 5 L 82.80€ 70.35€

Easy Pack Natural by Plagron

Alchimia present Plagron Easy Pack Natural, a set of base fertilisers formulated with algae, Alga Grow, Alga Bloom and, as a booster, Green Sensation. It is intend [...]

  • 24.00€

Plagron Terra Bloom

Terra Bloom is a highly concentrated mineral basic plant nutrient for use during the plant's flowering phase.This liquid fertiliser provides optimum [...]

  • 1 liter 12.15€ 10.30€

Top Crop TriPack

Top Crop TriPack is a fertiliser kit intended to be used in the various plant stages, rooting, growth and flowering. The kit comprises three different products: [...]

  • 250 ml 18.00€ 16.20€

CANNA Terra Flores (Bloom)

Terra Flores from CANNA is the ideal fertiliser to get large buds and optimal resin production. CANNA Terra Flores stimulates the formatio [...]

  • 1 L 12.86€ 10.90€
  • 5 L 47.34€ 40.20€

BioTabs Starter Pack

Biotabs Starter Kit allows you to grow from 5 to 10 cannabis plants, depending on the volume of the pots. This kit includes: 25 gr of Bactrex [...]

  • 60.00€ 45.00€

Top Auto

Top Auto by Top Crop is a fertiliser specially formulated to provide auto-flowering cannabis plants with all the nutritional requirements from day [...]

  • 250 ml 7.00€ 5.25€
  • 1L 15.00€ 11.25€


SuperMix from Plagron is a mixture of organic fertilisers designed to enrich all types of soil in an efficient and durable way.It promotes an e [...]

  • 1L 17.61€ 14.95€
  • 5L 36.80€ 31.25€

Powder Feeding Bio Starter Kit

Alchimia presents Powder Feeding Bio Starter Kit, a set of powder fertilisers to mix with the substrate to enrich up to 100-150 litres, for a comp [...]

  • 56.21€ 44.95€
UP TO 20%

HESI Bloom Complex for soil

The HESI Bloom Complex for soil contains vital substances that increase the energy of plants and ensure the health of the soil flora. Product manufactured with the most pure raw ma [...]

  • 1 L 13.00€ 10.40€
  • 5 L 33.85€ 27.05€
  • 10 L 59.20€

GUANOKALONG Bat guano Powder

Guanokalong is a 100% natural and odourless fertiliser, it contains guano from bats and seabirds. Guanokalong provides a complete presence of nutr [...]

  • 1 Kg 16.34€ 11.40€

B.A.C Organic Bloom

BAC Organic Bloom has been specially developed to supply all the nutritional needs of your cannabis plants during the flowering stage. BAC Organic Bloom us [...]

  • 1 L 16.76€ 14.20€
  • 5 L 60.94€ 51.75€

Plagron Bat Guano 5L

While everyone sleeps, nature produces the best product for feeding plants. Bat Guano is the most balanced and potent fertilizer for plants [...]

  • 1 Kg 14.15€ 13.40€
  • 5 Kg (Out of stock) 30.45€ 28.90€

Rhino Skin

The secret to the success of many growers in achieving heavy colas with large buds is to start from a healthy and strong plant, which is precisely what Rhino Skin by Advanc [...]

  • 250ml 10.10€ 9.05€
  • 1L 35.90€ 32.30€

Plagron PK 13-14 1L

The secret of a perfect fertilizer is in the power of their ingredients, which, in the right proportions, can produce miraculous results. Pla [...]

  • 13.00€ 11.05€

Big One

Big One by Top Crop is a flowering stimulator which can greatly increase the final yield. It can be expected to produce up to 40% more flo [...]

  • 250 ml 17.00€ 11.90€
  • 1L 45.00€ 31.50€

Guerilla Box Biotabs

Alchimia presents here the Guerrilla Box from Biotabs , a 100% organic fertilizer kit for outdoor marijuana crops that allows you to grow [...]

  • 30.00€ 24.00€


Orgatrex from Biotabs is a 100% organic liquid fertilizer that can be used during both the growing and during the flowering cycles of marijuana plants. Con [...]

  • 1L 19.51€ 15.60€

T.A. Bloom Booster (Ghe Bio Bud®)

Terra Aquatica presents Bloom Booster, a powerful and naturally-formulated flowering stimulator created for organic cannabis farming. [...]

  • 1 L 25.00€ 18.75€

Guanokalong Palm tree Ashes 1L

Guanokalong's Palm tree Ashes is a completely natural and organic product coming from the Island of Sumatra, in Indonesia, and included in the GK Organics [...]

  • 16.34€ 11.40€

Top Candy

Top Candy by Top Crop is one of the flagship products of this important Spanish fertiliser brand. It is a flowering fertiliser that contai [...]

  • 1L 10.00€ 7.50€
  • 5L 32.00€ 24.00€
(+34) 972 527 248
(+34) 972 527 248
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