10 Best flower fertilisers in Canada

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Last Updated - 2025/09/16

Best Choice

01
Ludicrous Nutrients

Ludicrous Boost Premium Flower Bud Fertilizer Powder Increases Bloom and Flowering During The Bloom Stage. hydroponics or Soil, This 500 g Formula boosts Plants with Essential nutrients for Big Buds

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Main highlights

Unique Patent Pending Bud Nutrients: Unlike regular fertilizers, our patent-pending super bloom boost powder provides a wealth of plant nutrients including complex carbohydrates, humic acid, and many plant vitamins to make sure your plants get everything they need for strong and beautiful flowers.
Super bloom and bud booster - add a ludicrous boost to your flowering and blooming stages of plant growth via our patent pending blend of bud bloom nutrients and beneficial components to help maximize fruiting, flowering, blooming in weeks 5-12 of plant growth (optional use for weeks 1-4)
Super Easy to Use Flower Food: Add a single scoop of our super boost fertilizer to 5 gallons of water (20l) and mix thoroughly until the powder is completely dissolved. Add the water mix to blooming plants (weeks 5-11) once a week and watch the magic happen.
Proprietary Flower Bud Super Food - revolutionary hydroponics fertilizer (works of course in soil as well) formulation includes kelp extract which contains natural nutrients and amino acids to help improve plant health, vigor helping to grow big buds via our unique NPK of 1 0 4.
Designed for the Flowering or Bloom Stage: The Ludicrous Boost plant fertilizer is used in conjunction with the Ludicrous Bloom during weeks 5-11. Once your plants have passed the 4-week vegetative state mark, it’s time to help them flourish and bloom more beautifully than ever before.
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9.9

Exceptional

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02
Advanced Nutrients

Advanced Nutrients Big Bud Liquid Fertilizer, 250ml

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9.7 Simple to use

9.1 for starters

8.4 worth the money
Main highlights

Measurable, significant increases in overall harvest weight and market value
Larger, heavier, denser flowers
Flowers with more essential oils, aromatics, terpenoids, phenols and other potency factors
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9.7

Exceptional

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03
Miracle-Gro

Miracle-Gro Water Soluble Bloom Booster Plant Food - 1.5Kg

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9.9 Simple to use

9.5 worth the money
Main highlights

GRO TOGETHER: To boost your results, follow up with a feeding of Miracle Gro Water Soluble Plant food every 7-14 days
GRO LONGER: Our slow-release plant food feeds for up to 3 months, meaning you can spend more time enjoying your flowers
GRO HEALTHIER: Organic ingredients like kelp and bone meal, naturally broken down into nutrients plants can use to develop strong roots
GRO EASIER: Simply shake around your annuals, perennials or roses in ground or in containers
GRO BIGGER: Our high-phosphorous mix feeds above and below the soil for spectacular, more vibrant blooms, compared to unfed plants
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9.5

Excellent

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Value for Money

04
Miracle-Gro

Miracle-Gro Shake N Feed Ultra Bloom Plant Food 10-18-9 2.04 Kg

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Main highlights

GRO TOGETHER: To boost your results, follow up with a feeding of Miracle Gro Water Soluble Plant food every 7-14 days
GRO LONGER: Our slow-release plant food feeds for up to 3 months, meaning you can spend more time enjoying your flowers
GRO HEALTHIER: Organic ingredients like kelp and bone meal, naturally broken down into nutrients plants can use to develop strong roots
GRO EASIER: Simply shake around your annuals, perennials or roses in ground or in containers
GRO BIGGER: Our high-phosphorous mix feeds above and below the soil for spectacular, more vibrant blooms, compared to unfed plants
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9.4

Excellent

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05
MARPHYL

MARPHYL Organic Liquid Fertilizer – Indoor & Outdoor House Plant Fertilizer - All-Purpose Nutrient-Rich Plant Food - Soil Enhancer for Garden, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

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9.7 Simple to use

9.1 worth the money

8.7 Fashion
Main highlights

Superior Liquid Plant Food - MARPHYL Marine Phytoplankton is ideal as an outdoor and indoor plant fertilizer. It works great as vegetable fertilizer, houseplant fertilizer, and garden fertilizer. It’s an organic solution for your garden, greenhouse, and hydroponics. Enjoy gorgeous, colorful blooms with this exceptional flower food. Enhance soil quality and watch your trees, shrubs, vines, grass, plants, flowers, and vegetables thrive
Organic & Sustainable - Our Liquid Marine Phytoplankton Soil Enhancer is an organic, all-purpose plant food that is harvested 100% naturally. It's vegan, non-toxic, non-GMO & sustainably made with no preservatives making it safe for vegetable gardening, groundwater, and pets. This indoor plant food replenishes your soil on a regular basis to ensure the continued growth and beauty of your vegetation. Our organic plant fertilizer will meet your every need and provide a safe environment for all.
Naturally Boost Plant Health - Marine Phytoplankton are Microalgae full of nutrients, vitamins, and minerals. It's so much more than your average liquid plant fertilizer. MARPHYL's fertilizer for indoor and outdoor plants, lawns, trees, flowers etc. provides an astounding array of nutritional elements.Our soil fertilizer is packed with vitamins, minerals, essential fatty acids, DHA, EPA, amino acids, chlorophyll, and a vast spectrum of phytochemicals, to make your garden and greenhouses flourish
Miraculous & Beneficial - Found in oceans across the world, marine phytoplankton are microalgae that infuse your plants, trees, grasses, and more with everything they need for health and longevity. Our plant food is high in potassium, nitrogen, and phosphorus as well as calcium and magnesium for lush foliage. Your lawn & garden will be the envy of the neighborhood, and your indoor plants will brighten your home.
Easy to Use Water Soluble Fertilizer - Simply mix a 1:20 ratio of our liquid plant fertilizer with water. Once in the water, stir, and then pour onto the plants. Soil feed is perfect for use in small and large sprayers. Recommended use is every two weeks. You'll see the difference after just one application
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9.2

Excellent

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06
Floralife

FloraLife Fresh-Cut Flower Food - Sachet Multi-Nutrient & Hydration Solution - 25 Packets

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Main highlights

INSPIRED BY FLOWERS: FloraLife is dedicated exclusively to the care and handling of fresh-cut flowers from plant to vase. As pioneers, we share our knowledge and expertise with those who share our passion for bunches, bouquets, and arrangements
GLOBALLY POSITIONED: We provide full post-harvest solutions to the entire floral industry. Our extensive range of flower care products is specifically formulated to feed, hydrate, nourish, and protect fresh-cut flowers at every stage of their journey.
FLOWER FOOD: Just like us, fresh-cut flowers need to eat!! Feed them the right nourishment and they stay fresh, vibrant, and looking fabulous.
EXPRESS: Our multi-nutrient premium and revolutionary product allows fresh-cut flowers to be fed and fully hydrated, with or without cutting the stems. It suits all flower and foliage types, and contains 97% naturally derived ingredients make it an excellent flower care option for your favorite plants.
DEPENDABLE PACKAGING: Ensure your flower care products stay fresh and protected with durable, moisture-resistant packaging that maintains quality from shipping to storage. Trusted by floral professionals, FloraLife delivers consistent results for fresh flower care.
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9.1

Excellent

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07
Osmocote

Osmocote Smart Release Fruit & Veg Plant Food 453 g

23% Off Free Shipping
Main highlights

Use anywhere–in ground and in containers
High-nutrient plant food promotes strong roots and vigorous above-ground growth
Feeds continuously for up to 4 months
Favoured for seasonal vegetables and perennials
453 g (1 lb) bottle covers up to 3.7 m2 (40 ft2)
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8.9

Very Good

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08
Miracle-Gro

Miracle-Gro Orchid Plant Food Spikes, 10-Pack (Orchid Fertilizer)

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9.3 Simple to use

8.2 worth the money
Main highlights

Replace with fresh spikes every 2 months
Helps promote green leaves and beautiful blooms^Feeds up to 2 months^Feed orchids only when plants are in active growth (flowering or development of new shoots, leaves, or roots)^Replace with fresh spikes every 2 months^Cut sticks in half and gently press into potting mix, distributing evenly between the plant and edge of pot
Helps promote green leaves and beautiful blooms
Feeds up to 2 months
Feed orchids only when plants are in active growth (flowering or development of new shoots, leaves, or roots)
Cut sticks in half and gently press into potting mix, distributing evenly between the plant and edge of pot
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8.8

Very Good

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09
WOWCASE

WOWCASE 7 Oz Urea Fertilizer for Plants 46-0-0, Rich Nitrogen 46% for Increase The Yield of Your Crops, Ideal Plant Food Nitrogen Fertilizer for Grass, Vegetable, Fruits, and Flowers, Lush Growth

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Main highlights

VIBRANT, GREENER COLOR: With our urea fertilizer, your plants will have a vibrant & greener color. This lawn fertilizer effectively transforms your plant’s color, making your garden or lawn stunning
PROMOTES RAPID, LUSH GROWTH: Our high nitrogen fertilizer provides a 46-0-0 ratio, making it an ideal plant food for grass, vegetables, fruits & flowers and ensuring they grow quickly & beautifully
EASY TO USE: For established turf, spread 1/2 lb. for every 1,000 sq. ft. For vegetables, flowers, shrubs & trees to achieve greener color and prolific growth, apply 1/2 teaspoon near the drip line
BIGGER BLOOMS & CROPS: Our all purpose fertilizer makes flowers bloom bigger and helps grow more fruit & vegetables. It works great as a flower food, fruit tree fertilizer & vegetable fertilizer
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8.5

Good

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10
Hintyne

Lotus Foods Aquatic Plant Fertilizer, 200g Aquarium Plant Fertilizer, Effective Growth Lotus Foods, Lotus Nutrients for Bowl Lotus, Water Lily, Lotus

11% Off
Main highlights

Versatile and Easy to Use: Suitable for various aquatic plants, including demanding species like lotus and water lilies. Encourages lushes foliage and vibrant blooms with a simple application formula.
Tailored for Water Lilies: Made with high-purity materials, the popping powder formula is easily absorbed by water lilies and lotus plants, ensuring rapid recycling and enhanced vibrancy.
Rich Nutrient Formula: Contains trace elements, nitrogen, phosphorus, potassium, root substances, and mycelium protein, delivering a balanced diet for healthy aquatic plant development.
Promotes Strong Roots: Enhances root nutrition to improve resilience and vitality. Supports faster and healthier growth, ensuring lushes, thriving underwater plant life.
Boosts Bloom Performance: Provides essential nutrients to stimulate bud formation and promote fuller, brighter flowers. Enhances petal shine and fragrance for a visually stunning and fragrant aquatic garden.
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8.4

Good

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