Comparison: Best Grandiol Multi Purpose Plant Food (Updated | Dec 1st)
From nutrient balance to ease of use, we’re breaking down what makes a plant food stand out. Join us as we explore how Grandiol stacks up against the competition and whether it deserves a permanent spot in your gardening toolkit. Your plants might just thank you.
- Best for instant liquid feed: Purived 16oz All-Purpose Liquid Plant Fertilizer – Makes 50 Gallons
- Best for safe all‑plant: Miracle-Gro Water Soluble All Purpose Plant Food
- Best for balanced 10‑10‑10: GreenView Multi-Purpose Fertilizer
- Best for indoor liquid boost: Miracle-Gro Indoor Plant Food
- Best for no‑mix pour: Miracle-Gro Pour & Feed Plant Food
- Best for 24‑8‑16 power: Miracle-Gro Water Soluble All Purpose Plant Food
- Best for 6‑month release: Osmocote Smart-Release Plant Food Plus Outdoor & Indoor
- Best for 20‑10‑20 boost: Pennington Water Soluble All Purpose Plant Food 20-10-20 8/1.5lb
- Best for veggie yield max: Nelson – All Vegetable Garden Plant Food
- Best for continuous spike feed: Miracle-Gro Indoor Plant Food Spikes
Product Comparison: Best Grandiol Multi Purpose Plant Food
Purived 16oz All-Purpose Liquid Plant Fertilizer – Makes 50 Gallons, for Indoor Houseplants, All-Natural, Groundwater Safe, Made in USA
- Best value, one bottle makes 50 gallons of nutrient rich, odorless fertilizer that feeds instantly
- Easy to use & feeds instantly. Just mix a cap full of Purived Plant Food to 1 gallon of water & feed
- All-purpose, nutrient rich formula designed to feed indoor & outdoor potted plants
- Formulated for all types of feeding methods: soil drench, foliar feed, full & semi hydroponics
- Purived Plant Food has a 2 year shelf life
Miracle-Gro Water Soluble All Purpose Plant Food, Fertilizer for Indoor or Outdoor Flowers, Vegetables or Trees, 3 lbs.
- Full of essential nutrients, it instantly feeds to grow bigger, more beautiful plants versus unfed plants
- Feed every 1-2 weeks
- Use with the Miracle-Gro Garden Feeder or any watering can
- For all flowers, vegetables, trees, shrubs and houseplants
- Safe for all plants, guaranteed not to burn when used as directed
GreenView Multi-Purpose Fertilizer, 33 lb. Bag – NPK 10-10-10
- 10-10-10 NPK balanced formulation
- Complete, all-purpose fertilizer
- Excellent for use on vegetables, flowers, trees, shrubs, and ornamental gardens
- A general purpose formula containing the important nutrients needed by most plants
- See label for coverage amount dependent on plant type
Miracle-Gro Indoor Plant Food, Liquid Plant Food for Houseplants, Snake Plants, Peace Lilies, Flowers, Vegetables, Herbs and More, 8 oz., 2-Pack
- Miracle-Gro Indoor Plant Food is formulated with nutrients your indoor plants need to flourish
- This liquid plant food feeds plants instantly
- Where to use: Use with all indoor container plants including houseplants, snake plants, croton, peace lilies, flowers, vegetables, and more
- How to use: Apply this houseplant food directly to the soil using 1 pump for small pots and 2 for large pots, or mix 4 pumps of plant food with 1 quart of water and water as usual
- What’s included: This bundle comes with two 8 oz. bottles of Miracle-Gro Indoor Plant Food
Miracle-Gro Pour & Feed Plant Food, Fertilizer Instantly Feeds Live Plants, For Outdoor & Indoor Plants in Containers, 32 oz.
- Ready-to-use plant food, no mixing required
- No mixing with water – simply apply directly to the soil
- Instantly feeds all potted plants
- Feed every 1-2 weeks
- For indoor and outdoor container plants
Miracle-Gro Water Soluble All Purpose Plant Food, For All Indoor or Outdoor Plants, Roses, Flowers, Vegetables, Houseplants, Trees, and Shrubs, 1.5 lbs
- Feeds all plants: Miracle-Gro Water Soluble All Purpose Plant Food feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
- Promotes growth: This all-purpose plant food grows bigger, more beautiful plants (vs unfed plants) and starts working instantly to promote quick, beautiful results
- NPK: 24-8-16 plant fertilizer contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
- Application: For indoor plants, mix 1/2 tsp per gallon of water in a watering can; For outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water. Use with the Miracle-Gro Garden Feeder or any watering can
- Coverage: One 1.5 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food feeds approximately 600 sq. ft. of garden area
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 1 lb.
- Our best formula, fortified with 11 essential nutrients
- Works with virtually all plant varieties, in all growing conditions
- Feeds up to 6 full months
- Apply with confidence to potted plants, indoors or outdoors
- No-burn pledge when used as directed
Pennington Water Soluble All Purpose Plant Food 20-10-20 8/1.5lb
- Water soluble plant food mix with a measuring scoop.
- Wide mouth jar for easy scooping without the mess
- Formulated to keep the product dry and free flowing
- A foam seal on the lid conserves freshness
- All purpose plant food for bigger, more bountiful fruits and blooms vs. unfed
- Safe for all plants – when used according to to label dilution
- For feeding plants including fruits, vegetables and flowers. Guaranteed to grow your plants
- Apply every 7-14 days or as needed throught the growing season
- For new and established plants
- Simply scoop plant food into watering can, add water, and apply Follow application rates listed on container for best results
Nelson – All Vegetable Garden Plant Food, Granular Fertilizer, Multi-Purpose High Calcium Phosphorus Micronutrients for In-Ground, Gardens, Containers, & Greenhouses, NutriStar 12-14-11 (2 lb.)
- PLANT FOOD: Our vegetable and garden plant food features (NPK) nitrogen (12%), phosphate (14%), soluble potash (11%) with added high calcium (2.3%). High calcium promotes healthier blooms, while high phosphorous and trace elements, such as iron and magnesium, ensure higher yields and blooms in addition to overall plant health and performance. Multiple sources of nitrogen help new plants start growing quicker while micronutrients ensure that all other nutrients are utilized effectively.
- VEGETABLE GARDEN FERTILIZER: Grow the biggest, healthiest plants possible so that your garden produce will be plentiful for you and your family. Our multi-purpose and slow-release plant food works for all indoor and outdoor edible vegetables and herbs, including but not limited to beans, beets, berries, cabbages, cantaloupes, corn, cucumbers, herbs, radishes, squash, tomatoes, and watermelons.
- PATIO CONTAINER PLANT FERTILIZER: The well-balanced nutrients in our vegetable garden plant food promote root and stem growth. This plant fertilizer can be used for all containers, hanging baskets, and in-ground plants as well as to topdress or incorporate into the soil when planting new or feeding established plants. Easily apply this multi-purpose plant food when planting or repotting and then each month during the growing season.
- FRUIT PLANT TREES: Our NutriStar formula works with the soil and the soil’s biology to provide your garden plants with the best nutrition at the right time and in the right amount. Your plants get an immediate boost upon application, coupled with lasting benefits that continue to feed them for months.
- SUPERIOR QUALITY: Nelson Plant Food fertilizer is the leading landscapers’ choice for over 30 years. We carefully and confidently formulate plant food that is horticulturally correct for each type of plant as we conduct extensive research to ensure that all plants are properly fed with each NutriStar or ColorStar formula. Apply our plant fertilizer every 30 days during the growing season and see the plant food’s label for the recommended rate of application.
Miracle-Gro Indoor Plant Food Spikes, Includes 48 Spikes – Continuous Feeding for all Flowering and Foliage Houseplants – NPK 6-12-6
- Easy-to-use fertilizer for all indoor plants including ferns, spider plants, pothos, and croton
- Houseplant fertilizer spikes feed continuously for up to 2 months
- When used as directed, plant food spikes are safe to use on all indoor, potted plants
- Plant food spikes are filled with the micronutrients that indoor plants need
- Indoor plant care made simple; enjoy vibrant potted plants in your home, office or business
- This bundle includes two packs of Miracle-Gro Indoor Plant Food Spikes
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What are the key differences between liquid, water‑soluble, and granular plant foods?
Liquid fertilizers like Purived and Miracle‑Gro Indoor mix with water and feed instantly, making them ideal for quick boosts and foliar feeding. Water‑soluble powders such as Miracle‑Gro All Purpose or Pennington dissolve in a watering can and are good for larger areas or regular schedule feeding. Granular options like Osmocote Smart‑Release and Nelson’s vegetable blend release nutrients slowly over weeks to months, reducing the frequency of applications.
How does the NPK ratio affect which product I should choose?
NPK ratios indicate the balance of nitrogen, phosphorus, and potassium; a 10‑10‑10 blend (GreenView) offers a balanced feed for general growth, while a higher nitrogen formula like Miracle‑Gro 24‑8‑16 promotes leafy growth. For fruiting or flowering plants, a higher potassium ratio (e.g., Osmocote’s proprietary blend) can improve bloom quality. Match the ratio to your plant’s stage: vegetative growth benefits from more nitrogen, while blooming benefits from more phosphorus and potassium.
Which product gives the best value per volume of garden area covered?
Purived’s 16 oz bottle makes about 50 gallons of feed, providing roughly 0.32 oz per gallon, which is very economical for large indoor collections. Miracle‑Gro Water Soluble (1.5 lb) covers around 600 sq ft, making it cost‑effective for expansive outdoor beds. For smaller indoor spaces, the Miracle‑Gro Indoor spikes (48 spikes) feed continuously for up to two months, offering convenience rather than pure volume value.
Do any of these fertilizers have a longer shelf life or special storage requirements?
Purived advertises a two‑year shelf life and remains odorless, so it can be stored in a cool, dry place without degradation. Granular products like Osmocote and Nelson’s blend are also stable for several years if kept sealed. Liquid formulas, especially those with organic components, should be kept tightly capped and away from extreme heat to maintain potency.
Can I use the same fertilizer for both indoor houseplants and outdoor garden beds?
Many all‑purpose formulas, such as Miracle‑Gro Water Soluble and GreenView 10‑10‑10, are labeled safe for both indoor and outdoor use, but dilution rates differ. Indoor plants typically require a weaker mix (e.g., ½ tsp per gallon) to avoid root burn, while outdoor beds can handle stronger concentrations (1‑1½ tbsp per gallon). Always check the label for specific indoor vs. outdoor recommendations.
What are the advantages of using pre‑measured spikes versus liquid feeds?
Spikes like Miracle‑Gro Indoor Plant Food Spikes provide a set‑and‑forget solution, delivering micronutrients continuously for up to two months without mixing. Liquid feeds give you precise control over concentration and can be applied as a foliar spray for rapid absorption. Choose spikes for convenience and low maintenance, and liquids when you need quick correction or customized dosing.
How frequently should I reapply these fertilizers for optimal plant health?
Liquid and water‑soluble feeds are typically applied every 1‑2 weeks, depending on plant type and growth stage. Granular slow‑release products like Osmocote feed for up to six months, requiring only a single application per season. Always follow the manufacturer’s schedule on the label, adjusting for heavy feeding periods such as flowering or fruiting.