Best Fertilizer For Zucchini of 2021: Top 6 Picks

Last update: 2021-09-26

Throughout the last nine months, our experts have tested over 20 of the best fertilizers for zucchini. In this post, we show you the six highly-rated options, each of which is specifically for specific use.

Here are the best fertilizers for zucchini you can buy in 2021:

  • Easy To Apply: Miracle-Gro Shake 'N Feed
  • Best For Greener Zucchini: Burpee Organic Blood Meal Fertilizer
  • Fast Acting: Jobe’s Organics 9023
  • Best For Abundant Harvest: Espoma Garden-Tone Plant Food
  • Slow Release: Jobe's Organics All-Purpose Fertilizer
  • Best For Larger Zucchini: Pendelton Turf Supply Jackpot Liquid Fertilizer
6 Best Fertilizers For Zucchini
Easy To Apply
Miracle-Gro Shake 'N Feed
    Best For Greener Zucchini
    Burpee Organic Blood Meal Fertilizer
      Fast Acting
      Jobe’s Organics 9023
        Best For Abundant Harvest
        Espoma Garden-Tone Plant Food
          Slow Release
          Jobe's Organics All-Purpose Fertilizer
            Best For Larger Zucchini
            Pendelton Turf Supply Jackpot Liquid Fertilizer

              Easy To Apply: Miracle-Gro Shake 'N Feed

              Miracle-Gro Shake 'N Feed
              Miracle-Gro Shake 'N Feed
              10Perfect
              Pros
              • Provide good grips – feature an intentionally curled body design
              • Prevent over-pouring during use – an added net with holes to cover the wide mouth
              • Keep plants from disorders of calcium lacking – contain a huge volume of calcium
              Cons
              • A bit pricey

              Miracle-Gro’s fertilizer products always hold a privileged position in our ranking when it comes to the easiest-to-apply fertilizer. And, this version is no exception.

              Though there’s no handle, its intentionally curled body design provides good grips to hold firmly during use.

              The wide mouth is covered by a net with holes that are big enough for the fertilizer granular to go through easily. So, you won’t end up with half of the fertilizer bottle on one plant.

              The airtight lid, meanwhile, keeps the product inside from surrounding impacts and getting mold.

              Talking about its use, the Miracle-Gro Shake 'N Feed has 100% natural ingredients, is specifically rich in calcium and feeds the soil well within 3 months.

              It’s the perfect pick to keep zucchini from disorders caused by calcium deficiency.

              Miracle-Gro Shake 'N Feed Specifications

              Size

              1 lb.

              Coverage Area

              up to 30 sq. ft.

              Fertilizer Analysis

              10-5-15

              Highlight Features

              feature an intentionally curled body design

              an added net with holes to cover the wide mouth

              contain a huge volume of calcium

              Verdict

              Highlighting a well-thought, easy-to-apply packaging design, the Miracle-Gro Shake 'N Feed completely takes no risks of over-pouring during use, making it one of our most favorite picks.

              Best For Greener Zucchini: Burpee Organic Blood Meal Fertilizer

              Burpee Organic Blood Meal Fertilizer
              Burpee Organic Blood Meal Fertilizer
              9.6Outstanding
              Pros
              • Help zucchini be greener – rich in nitrogen
              • Reliable – made by a well-known US brand & OMRI listed
              • Safe to use & eco-friendly – 100% organic
              Cons
              • Expensive
              • The zipper closure will be worn out during use over time

              Zucchini is a heavy feeder, and if you’re looking for a side-dress to help it grow greener, the Burpee Organic Blood Meal Fertilizer is a noteworthy consideration.

              Its NPK ratio is 12-0-0, meaning that this plant food contains purely nitrogen – a crucial part of the chlorophyll molecule to make zucchini greener. It also partially boosts the plant’s photosynthesis.

              Made by Burpee – one of the oldest fertilizer-manufacturing US brands, this product is extremely reliable to use.

              Though we quite love bottled packaging, this soft plastic bag packaging isn’t bad at all. It is waterproof and designed with a resealable mouth for easy storing.

              Burpee Organic Blood Meal Fertilizer Specifications

              Size

              3 lbs.

              Coverage Area

              about 120 sq ft.

              Fertilizer Analysis

              12-0-0

              Highlight Features

              rich in nitrogen

              made by a well-known US brand

              OMRI listed

              100% organic

              Verdict

              The Burpee Organic Blood Meal Fertilizer is a concentrated nitrogen source, making it a great side dress for zucchini and giving them their greener color.

              Fast Acting: Jobe’s Organics 9023

              Jobe’s Organics 9023
              Jobe’s Organics 9023
              9.6Outstanding
              Pros
              • The most reliable and efficient fast-acting fertilizer – made in the USA & contain Jobe’s Biozomethe
              • Help zucchini grow healthier and stronger - rich in phosphate
              • Affordable
              Cons
              • It has stinky smells

              Speaking of the most reliable fast-acting organic fertilizer at a highly competitive price point, we find the ones by Jobe’s Organic are unrivaled.

              What makes them such a success is the exclusive component that helps speed up the material breakdown process called Jobe’s Biozomethe. And, that's also why, compared to other similar products in the market, it gives much faster results.

              As for ingredients, it is particularly rich in phosphate, which simply explains why any zucchini, once being fed by this fertilizer, will grow extremely healthily.

              They can even resist drought, pests, and disease better than those non-fed plants.

              Jobe’s Organics 9023 Specifications

              Size

              16 lbs.

              Coverage Area

              1 ½ cups per 10 square feet.

              Fertilizer Analysis

              2-5-3

              Highlight Features

              made in the USA & contain Jobe’s Biozomethe

              rich in phosphate

              Verdict

              The Jobe’s Organics 9023 stands out for containing Jobe’s Biozomethe – the brand’s signature proprietary microorganism archaea that brings decently quicker results in plant growth, making it the only fast-acting fertilizer we trust.

              Best For Abundant Harvest: Espoma Garden-Tone Plant Food

              Espoma Garden-Tone Plant Food
              Espoma Garden-Tone Plant Food
              9.4Outstanding
              Pros
              • Help for abundant harvest – the relatively balanced NPK ratio of 3-4-4
              • Long-lasting & effortless to use - Bio-tone Microbes
              • The most competitive organic, slow-release fertilizer in this list
              Cons
              • The Ziploc design could be more airtight
              • Its smell is too strong

              If you’re on a tight budget and want the most inexpensive zucchini fertilizer for an abundant harvest, consider the Espoma Garden-Tone.

              Its cost is surprisingly lower than usual plus there frequently are many sale-offs, therefore, it's not difficult for you to purchase it at a good price.

              The Garden-Tone is a slow-release plant food that breaks down for close to a month, so it is very economical and effortless to use.

              But what truly sets it apart from other counterparts in the market is the unique component called Bio-tone Microbes.

              Besides, it is completely made of organic ingredients guaranteed to not have sludge, fillers, or any chemical substances, despite its extremely low price.

              The fertilizer’s NPK ratio is relatively balanced, making it an all-purpose food for almost all fruits and vegetables at all growth stages.

              Espoma Garden-Tone Plant Food Specifications

              Size

              4 lbs.

              Fertilizer Analysis

              3-4-4

              Highlight Features

              the relatively balanced NPK ratio of 3-4-4

              Bio-tone Microbes

              Verdict

              The Espoma Garden-Tone sets a new standard for a budget-friendly organic fertilizer that is still quality and effective to bring an abundant harvest, making most of its competitors wary in how they price their product.

              Slow Release: Jobe's Organics All-Purpose Fertilizer

              Jobe's Organics All-Purpose Fertilizer
              Jobe's Organics All-Purpose Fertilizer
              9.4Outstanding
              Pros
              • Multipurpose & versatile – the NPK ratio of 4-4-4
              • Easy to use – designed in a form of spikes
              • Ideal for both indoor and outdoor use – no smell
              Cons
              • Pricey
              • A bit fragile for pressing into firm soil

              The Jobe's Organics All-Purpose is a higher-end slow-release fertilizer recommended for those people with a good budget. It gives you superior results in plant growth, versatility, and ease of use.

              Its analysis achieves the perfect balance between the three most important components – nitrogen, phosphate, and potassium, making it more in line with all growth stages of zucchini.

              Designed in the form of spikes, it is very easy to apply. No measuring or diluting required, you just need to press it into the soil, away from the plant stem, then reasonably water the plant. This new form of fertilizer also helps prevent wasteful runoff and annoying mess.

              Another notable thing is this product has no bad odors, which is good to be used for both indoors and outdoors.

              Jobe's Organics All-Purpose Fertilizer Specifications

              Size

              10.1 ounces

              Fertilizer Analysis

              4-4-4

              Highlight Features

              the NPK ratio of 4-4-4

              designed in a form of spikes

              no smell

              Verdict

              Considering its multi-purpose use, convenience, and quality, the Jobe's Organics All Purpose becomes the most worthwhile slow-release fertilizer on our list, though it might cost a bit higher than usual.

              Best For Larger Zucchini: Pendelton Turf Supply Jackpot Liquid Fertilizer

              Pendelton Turf Supply Jackpot Liquid Fertilizer
              Pendelton Turf Supply Jackpot Liquid Fertilizer
              9Outstanding
              Pros
              • Increase zucchini size – contain various micronutrients
              • Easy to get a specific dosage for use - an easy measure
              • High efficiency – each ounce is enough to cover a 1000-square-foot area
              Cons
              • A bit hard to squeeze the bottle when the product is nearly out

              The Pendelton Turf Supply Jackpot Liquid Fertilizer is trusted by lots of zucchini farmers in increasing the vegetable’s size and taste.

              Beyond the three crucial components – N, P, and K, it is formulated with various micronutrients, such as zinc, manganese, calcium, etc. This plays an essential role in consolidating the soil’s health as well as empowering plant growth.

              At first glance, its price might make you think that this is a too expensive product. But each ounce of this fertilizer, after diluted, can be applied for an area of over 1000 square feet, meaning that 32 ounces of the product’s total weight are enough for 32,000 square feet.

              One of our most favorite Pendelton features is its bottle packaging design with an easy measure, which makes you brain-free when pouring a specific dosage to use with no mess.

              Pendelton Turf Supply Jackpot Liquid Fertilizer Specifications

              Size

              32oz

              Coverage Area

              1 oz / 1 gallon / 1,000 sq ft.

              Fertilizer Analysis

              .1 B-.7 Ca-.3 Cu-.6 Fe-.3 Mg-.5 Mn-.9 Zn

              Highlight Features

              contain various micronutrients

              an easy measure

              each ounce is enough to cover a 1000-square-foot area

              Verdict

              Providing a variety of micronutrients, the Pendelton Turf Supply Jackpot Liquid Fertilizer is the best pick for larger zucchini.

              How To Choose The Best Fertilizer For Zucchini?

              Where Do You Grow Zucchini?

              For outdoor zucchini gardens

              Growing zucchini outdoors means that they will bear more impacts of weather conditions, pests, insects, and diseases. Therefore, the right fertilizers for them should contain a higher amount of phosphate and potassium to enhance the root system as well as the plant’s hardiness.

              For indoor zucchini gardens

              When choosing the best fertilizer for indoor zucchini gardens, you should go for slow-release models since they ensure to steadily supply the plant for 3-4 months.

              Granulated, pelleted, or tablet fertilizers are the best bet due to their technology-based smart release option.

              Indoor zucchini plants are commonly grown in pots or containers, meaning that their root system can’t be as strong as the ones grown outdoors, therefore, feed them with extra phosphate.

              Another important feature to consider is the smell. It should have as few odors as possible. If you have pets or kids, make sure it’s ultra-safe.

              Determine What You Need On Your Zucchini Gardens

              By figuring out your needs as well as the plant needs, it’s easier to determine the right fertilizer analysis.

              For example, a calcium-rich fertilizer is best for preventing leaf fall and premature zucchini flowers. Fertilizers that are rich in phosphorus and potassium help increase the number of flowers that your plants produce.

              Which Brands Make The Best Fertilizer For Zucchini?

              Miracle-Gro

              Miracle-Gro is currently the leading brand in weed-free seeds and fertilizers in North America, with over 150 years of expertise. It consecutively ranked in the top 100 on Forbes America's Most Reputable Companies in 2015 and 2016, which is such a big honor.

              Burpee

              Burpee is another best brand in producing and distributing high-quality fertilizers for zucchini that we’d like to introduce to you. They were started in 1881 and have now been one of those who continuously bring innovation into North American’s agriculture.

              Jobe’s Organics

              This home and garden product brand has a headquarter in Texas, along with some huge facilities in Kentucky. Their lines are vast, up to 200 products and some of them are now the best-sellers in North America.

              FAQs

              Should I fertilize zucchini?

              Yes, you should. Zucchini plants are a heavy feeder and they truly need fertilizer to grow healthily and quickly.

              When should I fertilize my zucchini?

              The best time to fertilize zucchini is during their seed germination, during the blossom, and during the fruit set.

              Are coffee grounds good for zucchini plants?

              Yes, they are. Coffee grounds help improve moisture levels and microorganisms’ growth in the soil, helping zucchini grow healthier.

              How do you increase the yield of zucchini?

              To increase the yield of zucchini, just harvest them more while applying excessive fertilizer.

              How do you fertilize zucchini?

              When fertilizing zucchini plants, use diluted fish emulsion or all-purpose organic fertilizers. After applying, water around the plants.

              Conclusion

              Finding the best fertilizer for zucchini is a lot easier than you might think, just by following the top features we listed above when you go shopping. We hope that the information here is helpful and thanks for reading!

              Harry Ramos
              Harry Ramos

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