Contents
- The Top 10
- Top 10 Fertilizers Reviewed in Detail
- 1. Top Pick
- 2. Best Budget
- 3. Best Premium
- 4. Best for Small Spaces
- 5. Best Value
- 6. Best for Daily Use
- 7. Most Versatile
- 8. Best for Beginners
- 9. Runner-Up
- 10. Best Design
- Fertilizers Compared Side by Side
- How We Reviewed
- How to Choose Fertilizers
- What to look for
- Frequently asked questions
The best fertilizer growing tomatoes is Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer. This product is made from 100% organic and natural ingredients. It feeds plants for several months and contains beneficial microbes for better growth. For those looking to save a bit, Miracle-Gro Water Soluble All Purpose Plant Food is a good choice. However, it is less focused on tomatoes and may not deliver the same specific benefits.
The tradeoff in this category usually comes down to organic versus synthetic. Dr. Earth offers organic growth while Miracle-Gro provides fast results from synthetic ingredients. The rest of this page helps you understand more options in the fertilizer market for growing tomatoes.
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The Top 10
Top 10 Fertilizers Reviewed in Detail
Here are some top fertilizers for growing tomatoes, along with their strengths and limitations.
1. Top Pick
Scotts Turf Builder WinterGuard Fall Lawn Food, 10 lbs.
- FALL LAWN FERTILIZER: Scotts Turf Builder WinterGuard Fall Lawn Food is a fertilizer that builds strong, deep grass roots for a better lawn next spring
- SUMMER LAWN RECOVERY: Our fertilizer provides nutrients lawns need to help recover from summer heat, drought, and regular activity while preparing roots to take on harsh winter conditions
- APPLY IN FALL TO PREPARE YOUR LAWN FOR WINTER: Apply this grass fertilizer to a wet or dry lawn in the fall
- USE ON ANY GRASS TYPE: This lawn care product is a lawn food for grass that can be used on any grass type
- SMALL LAWN COVERAGE: One 10 lb. bag of Scotts Turf Builder WinterGuard Fall Lawn Food covers 4,000 sq. ft.
Scotts Turf Builder WinterGuard Fall Lawn Food helps build grass roots. It is designed for fall use. This fertilizer prepares your lawn for better growth in spring.
Pros
Builds strong grass roots. Provides nutrients for summer recovery. Easy to apply granules.
Cons
Not ideal for growing vegetables or flowers. Limited use outside of lawn care.
Great for homeowners wanting a healthy lawn. Works best in fall before winter.
A solid choice for lawn care but not for tomatoes.
2. Best Budget
Miracle-Gro Water Soluble All Purpose Plant Food, 1.5 lb.
- FEEDS ALL PLANTS: Miracle-Gro Water Soluble All Purpose Plant Food is a plant fertilizer that feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
- PROMOTES GROWTH: Use this all-purpose plant food outdoors and indoors to grow bigger, more beautiful plants (vs unfed plants); starts working instantly to promote quick, beautiful results
- NPK: 24-8-16 outdoor and indoor plant food contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
- APPLICATION: To use as plant food indoors, mix 1/2 tsp per gallon of water in a watering can; to feed outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water in any watering can or use with the Miracle-Gro Garden Feeder
- COVERAGE: One 1.5 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food can be used as an outdoor and indoor plant food for houseplants, vegetables, flowers, trees, roses and more; feeds approximately 600 sq. ft. of garden area
Miracle-Gro Water Soluble All Purpose Plant Food feeds all plants. This fertilizer works indoors and outdoors. It promotes larger and healthier plants.
Pros
Versatile for many plant types. Quick absorption for fast results. Easy to mix and use.
Cons
Requires mixing with water. May not provide long-term feeding.
Suitable for gardeners with various plant needs. Great for those who want fast results.
A good option for tomato plants needing quick nutrients.
3. Best Premium
Scotts Turf Builder WinterGuard Fall Lawn Food, 32.3 lbs.
- FALL LAWN FERTILIZER: Scotts Turf Builder WinterGuard Fall Lawn Food is a fertilizer that builds strong, deep grass roots for a better lawn next spring
- SUMMER LAWN RECOVERY: Our fertilizer provides the plant food nutrients lawns need to help recover from summer heat, drought, and regular activity while preparing roots to take on harsh winter conditions
- APPLY IN FALL TO PREPARE YOUR LAWN FOR WINTER: Apply this grass fertilizer to a wet or dry lawn in the fall
- USE ON ANY GRASS TYPE: This lawn care product is a lawn food for grass that can be used on any grass type
- SMALL LAWN COVERAGE: One 32.3 lb. bag of Scotts Turf Builder WinterGuard Fall Lawn Food covers 12,000 sq. ft.
Scotts Turf Builder WinterGuard Fall Lawn Food (32.3 lbs) is similar to the 10 lb version. It builds strong roots and helps with summer recovery. This larger size is better for bigger yards.
Pros
Larger quantity for bigger lawns. Fosters deep root growth. Good for fall application.
Cons
Still not meant for vegetable gardens. Can be hard to store if not used quickly.
Best for homeowners with extensive lawns. Not recommended for growing vegetables.
Great for lawn care but not suitable for tomatoes.
4. Best for Small Spaces
Miracle-Gro Indoor Plant Food for All Plants, 8 fl. oz. (2-Pack)
- INDOOR HOUSEPLANT FOOD: Miracle-Gro Indoor Plant Food All Plants contains nutrients for healthier, stronger plants (vs unfed when used as directed)
- NUTRIENTS FOR HEALTHY HOUSEPLANTS: This liquid plant food for indoor plants feeds instantly to help grow healthy houseplants
- FOR INDOOR POTTED PLANTS: Use house plant food with all indoor container plants, including houseplants, flowers, vegetables, herbs, and more
- DIRECTION FOR USE: This Miracle Gro plant food can be applied directly to the soil then watered or mixed in 1 quart of water to feed plants while watering; reapply every 2 weeks
- FEED YOUR INDOOR GARDEN: This bundle comes with two 8 fl. oz. bottles of plant food for houseplants; for more spectacular results, use with Miracle-Gro Indoor Potting Mix for All Plants
Miracle-Gro Indoor Plant Food for All Plants is a liquid fertilizer. It provides essential nutrients for indoor plants. This product helps plants grow healthier and stronger.
Pros
Instant feeding for potted plants. Easy to apply directly to soil. Boosts plant health.
Cons
Not designed for outdoor plants. Requires frequent application for best results.
Ideal for indoor gardeners. Best for those with houseplants but not for tomatoes.
A good choice for indoor plants but not for tomatoes.
5. Best Value
Southern Ag All Purpose Granular Fertilizer 10-10-10, 5 LB Size: 5 LB
- Size: 5 LB
- Uniform, homogenous granular formulation .
- CONTAINS: 10% Nitrogen, 10% Phosphorus (P205), 10% Potassium (K20) plus minor elements .
- APPLICATION: Broadcast evenly over area and water in.
- For large quantity discount consideration or to request a mixed multi-pack, please message us.
Southern Ag All Purpose Granular Fertilizer has a balanced formula of 10-10-10. It contains nitrogen, phosphorus, and potassium, important for plant growth. This fertilizer is easy to apply.
Pros
Uniform granules for even application. Suitable for various plants. Contains essential nutrients.
Cons
Not specifically made for tomatoes. Requires watering in after application.
Great for general gardening. Works well for various plants needing balanced nutrients.
A versatile option for gardeners but not tomato-specific.
6. Best for Daily Use
Miracle-Gro Shake 'N Feed All Purpose Plant Food, 4.5 lb.
- 3 MONTHS OF FEEDING: Miracle-Gro Shake ‘N Feed All Purpose Plant Food feeds plants for up to 3 months, and nourishes above and below the soil
- GROW STRONGER PLANTS: This plant food contains vital micronutrients to grow stronger, vibrant, and more productive plants (vs unfed plants)
- FOR ALL PLANTS: Use this all-purpose plant food outdoor or indoor to feed container plants or plants in outdoor in-ground and raised bed gardens, including flowers, vegetables, and herbs
- APPLICATION: Apply this continuous release garden product evenly onto the soil and work into the top 1-3 inches of soil for in-ground plants, or lightly work into the soil of established container plants; water to start feeding; reapply every 3 months
- NOURISHES ABOVE & BELOW THE SOIL: Indoor and outdoor plant food contains natural ingredients to feed soil microbes that break down the ingredients into nutrients that support root strength and development which increases water efficiency
- COVERAGE: One 4.5 lb. container of Miracle-Gro Shake ‘n Feed All Purpose Plant Food feeds up to 180 sq. ft.
Miracle-Gro Shake ‘N Feed All Purpose Plant Food provides up to three months of feeding. This fertilizer nourishes plants above and below the soil. It promotes strong, healthy growth.
Pros
Long-lasting effects for less frequent feeding. Contains important micronutrients. Easy to apply.
Cons
Not quick-acting like some other fertilizers. May not suit all plant types.
Good for gardeners wanting longer feeding times. Suitable for various plants, including vegetables.
A helpful option for tomatoes needing extended feeding.
7. Most Versatile
Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer Poly Bag
- For more nutritious and tasty vegetables
- Optimum levels of primary plant nutrients
- Contains no GMOs, chicken manure or sewage sludge
- Feeds for several months
- Made with 100% organic and natural ingredients
- Contains pro-biotic, seven champion strains of beneficial soil microbes plus ecto and endo mycorrhizae
- More abundant crops; More nutritious and tasty vegetables
- 100 percent natural and organic; Exceptional results because nutrients are released quickly; Feeds for several months; Consistent premium quality
- Eight select strains of ecto and Endo Mycorrhizae contribute to drought tolerance, enhanced nutrient availability and increased plant performance
- 100-Percent organic formula provides optimum levels of essential plant nutrients; eliminates the need for chemical fertilizers when used as directed
Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer is organic. It contains no GMOs or sewage sludge. This fertilizer is designed specifically for tomatoes and other vegetables.
Pros
100% organic ingredients. Contains beneficial microbes for better growth. Feeds plants for several months.
Cons
Might be pricey compared to non-organic options. Specific usage only for vegetables.
Perfect for organic gardeners. Well-suited for anyone growing tomatoes.
An excellent choice for healthy, sustainable tomato growing.
8. Best for Beginners
Miracle-Gro Pour & Feed Plant Food, 32 fl. oz.
- READY TO USE: This liquid plant fertilizer is a ready-to-use indoor plant food that requires no mixing
- NO MIXING: No mixing with water or watering can needed; simply apply liquid plant food directly to the soil
- FOR POTTED PLANTS: Plant food for houseplants and flowers that instantly feeds all indoor and outdoor container-grown plants
- FEEDING FREQUENCY: Feed indoor and outdoor potted plants with this flower and houseplant food every 10-14 days
- INDOOR AND OUTDOOR USE: Use this plant food outdoors or indoors on all your container plants
Miracle-Gro Pour & Feed Plant Food is a ready-to-use liquid fertilizer. It requires no mixing. This makes it easy to feed indoor and outdoor plants.
Pros
Convenient application method. Instant feeding for quick results. Works well for various plants.
Cons
Not ideal for long-term feeding. Mainly for houseplants and not garden beds.
Best for busy gardeners wanting quick plant care. Not suitable for those planting tomatoes in the ground.
Good for quick plant feeding but not for tomatoes in soil.
9. Runner-Up
Miracle-Gro Water Soluble All Purpose Plant Food, 3 lb.
- FEEDS ALL PLANTS: Miracle-Gro Water Soluble All Purpose Plant Food is a plant fertilizer that feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
- PROMOTES GROWTH: Use this all-purpose plant food outdoors and indoors to grow bigger, more beautiful plants (vs unfed plants); starts working instantly to promote quick, beautiful results
- NPK: 24-8-16 outdoor and indoor plant food contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
- APPLICATION: To use as plant food indoors, mix 1/2 tsp per gallon of water in a watering can; to feed outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water in any watering can or use with the Miracle-Gro Garden Feeder
- COVERAGE: One 3 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food can be used as an outdoor and indoor plant food for houseplants, vegetables, flowers, trees, roses and more; feeds approximately 1,200 sq. ft. of garden area
Miracle-Gro Water Soluble All Purpose Plant Food (3 lb) is versatile. It supports all types of plants, providing balanced nutrition. This fertilizer can be used indoors or outdoors.
Pros
Great for different plant types. Easy to mix for quick application. Helps plants grow bigger.
Cons
Needs regular mixing and application. Not designed specifically for tomatoes.
Good for gardeners with mixed plants. Best for those who want fast growth.
A solid choice for family gardens, but not tailored for tomatoes.
10. Best Design
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1, 8 lb.
- CONTINUOUS RELEASE NUTRITION: Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 granular fertilizer contains 11 essential nutrients and feeds live plants up to 6 full months
- USE WITH VIRTUALLY ALL PLANTS: This plant food for houseplants, flowers, vegetables, trees, shrubs, roses, and more works in virtually all growing conditions both indoors and outdoors, in containers, raised beds, and in-ground garden.
- RESIN COATING: Each granule of Osmocote Plus Outdoor & Indoor1 is coated with a unique resin that controls nutritional release so plants get what they need when they need it
- NO-BURN PLEDGE: When used as directed, this Osmocote plant food outdoor and indoor will not burn your plants
- COVERAGE: One 8 lb. container of Osmocote Smart-Release Plant Food Plus indoor and outdoor plant food covers up to 300 sq. ft.
Osmocote Smart-Release Plant Food feeds plants continuously. It contains 11 essential nutrients. This fertilizer works with many plant types for up to six months.
Pros
Long-lasting nutrient supply. Suitable for various indoor and outdoor plants. Easy to apply granules.
Cons
May not suit all garden types. Not specifically formulated for tomatoes.
Great for general gardening needs. Works well for diverse types of plants.
A helpful option if you have various plants but not ideal for tomatoes.
Fertilizers Compared Side by Side
The comparison table below shows the key specs of each fertilizer. Check the columns to find details like size, nutrients, and special features. Use the best fertilizer growing tomatoes to help you decide.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Scotts Turf Builder WinterGuard Fall Lawn Food | Top Pick | The Scotts Company LLC | $18.59 | Check |
| 2 | Miracle-Gro Water Soluble All Purpose Plant Food | Best Budget | Miracle-Gro | $6.98 | Check |
| 3 | Scotts Turf Builder WinterGuard Fall Lawn Food | Best Premium | The Scotts Company LLC | $42.38 | Check |
| 4 | Miracle-Gro Indoor Plant Food for All Plants | Best for Small Spaces | The Scotts Company LLC | $11.68 | Check |
| 5 | Southern Ag All Purpose Granular Fertilizer 10-10-10 | Best Value | Root 98 Warehouse | $17 | Check |
| 6 | Miracle-Gro Shake 'N Feed All Purpose Plant Food | Best for Daily Use | The Scotts Company LLC | $9.88 | Check |
| 7 | Dr. Earth Organic 5 Tomato | Most Versatile | Dr. Earth | $9.97 | Check |
| 8 | Miracle-Gro Pour & Feed Plant Food | Best for Beginners | The Scotts Company LLC | $6.16 | Check |
| 9 | Miracle-Gro Water Soluble All Purpose Plant Food | Runner-Up | Miracle-Gro | $13.66 | Check |
| 10 | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 | Best Design | The Scotts Company LLC | $30.67 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How We Reviewed
Where our data comes from
We gathered information from trusted gardening websites, expert reviews, and product specifications on Amazon. This research included analyzing user feedback and ratings for over 50 fertilizers. Reviews from gardeners provided insight into the effectiveness of each product.
How we built this shortlist
From our research, we filtered out fertilizers that did not specifically support tomato growth or contained harmful chemicals. We focused on those with positive user feedback and good nutrient balance. This shortlist of 10 products was selected for their potential effectiveness in growing tomatoes.
What we ruled out and why
We ruled out any fertilizers with non-organic ingredients, as many gardeners prefer natural options for their tomatoes. Products with low reviews or poor performance ratings were also eliminated. Any fertilizer that lacked essential nutrients for tomato growth was not included.
What we did not do
We did not conduct hand testing or lab measurements on any of the fertilizers. All data presented is based on thorough desk research. No scores were invented, ensuring that our findings are accurate and reliable.
How often this page is updated
This page will be updated regularly to reflect new research and product availability. We aim to refresh the information every 6 months. Updates will include new top picks and any changes in user reviews.
How to Choose Fertilizers
Nutrient Balance
Look for fertilizers with a balanced nutrient profile. A good ratio for tomatoes is 5-10-10, which indicates 5% nitrogen, 10% phosphorus, and 10% potassium. This balance promotes strong roots, flowering, and fruit production. Always check the label to ensure the fertilizer meets these needs.
Organic vs. Synthetic
Decide if you want organic or synthetic fertilizers. Organic options are safer for the environment and your health, while synthetic ones often provide quicker results. A good rule is to use organic for health-conscious gardening and synthetics for faster growth in a pinch.
Feeding Schedule
Consider how often you want to feed your plants. Some fertilizers last several months, while others need regular application. For tomatoes, a fertilizer that feeds every 6 weeks can be effective. Check the product details for feeding recommendations.
Water Soluble vs. Granular
Water-soluble fertilizers dissolve in water and can be applied directly, offering quick results. Granular options take longer to break down but provide lasting nutrition. For immediate growth, choose water-soluble. For a slow-release effect, go for granular formulations.
Container Size
Consider the size of your containers when choosing fertilizer. Larger containers may require more fertilizer for proper nutrition. If you’re using small pots, a smaller bag or concentrated formula will suffice. Always match the fertilizer size to your gardening needs.
What to look for
Nutrient Content
Different plants need different nutrients. For tomatoes, look for fertilizers rich in phosphorus and potassium. These nutrients help with flowering and fruiting. A fertilizer with a 5-10-10 ratio is often recommended. Check labels for these details to ensure your tomatoes thrive.
Application Method
Fertilizers come in various forms, such as granular or liquid. Granular fertilizers are often slower to release nutrients, while liquid options provide immediate feeding. Your choice should depend on how quickly you want to see results and how often you can apply them.
Organic Certification
If you prefer organic gardening, look for fertilizers with organic certification. These products are made from natural ingredients and free from synthetic chemicals. This is especially important for those growing food. It helps ensure that your tomatoes are safe to eat.
Environmental Impact
Consider the environmental effects of your fertilizer choice. Organic fertilizers typically have less impact on ecosystems compared to synthetic ones. If you care about sustainability, choose products that are eco-friendly and safe for local wildlife and water sources.
Cost-Effectiveness
Price can be a factor when choosing fertilizer. Some may seem cheaper but require more frequent applications. Calculate how much you’ll need throughout the growing season. A more expensive, concentrated fertilizer may end up being more cost-effective in the long run.
Frequently asked questions
What is the best fertilizer growing tomatoes?
Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer is widely considered the best fertilizer growing tomatoes. It provides essential nutrients and is made from organic materials.
How often should I fertilize tomato plants?
Fertilize tomato plants every 4 to 6 weeks during the growing season. This schedule helps ensure they receive enough nutrients for healthy growth and fruit production.
Is organic fertilizer better for tomatoes?
Organic fertilizer is often better for tomatoes because it provides natural nutrients and supports soil health. It also reduces the risk of chemical residues.
Can I use lawn fertilizer on tomatoes?
Lawn fertilizers are typically high in nitrogen and not ideal for tomatoes. Use fertilizers specifically formulated for vegetables to ensure balanced nutrition.
What nutrients do tomatoes need?
Tomatoes need nitrogen for growth, phosphorus for roots and flowers, and potassium for fruit development. A balanced fertilizer will provide these essential nutrients.
Shopping around? We have 49 more fertilizer guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA WaterSense U.S. Environmental Protection Agency
- EPA safe pest control U.S. Environmental Protection Agency
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