12 Best Time Release Fertilizer for 2024

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables.com, at no extra cost. Learn more)

Introducing the 12 Best Time Release Fertilizer for 2023, a comprehensive guide that will help you achieve a lush and thriving garden. As a content writer expert, I have delved into the world of garden care to provide you with the most reliable and effective options available. Whether you're an experienced gardener or just starting out, this curated list of time release fertilizers will ensure that your plants receive the nutrients they need throughout the year. Say goodbye to constantly monitoring and manually applying fertilizers, as these top choices are designed to gradually release nutrients over an extended period, promoting healthy and sustainable growth. Explore this expertly curated selection and enjoy a remarkable gardening experience in 2023.

Proven Winners Continuous Release Fertilizer

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

Give your plants the boost they need with the Proven Winners ZZFTMR101ZF0 Continuous Release Fertilizer. This easy-to-use plant food is a must-have for any gardening enthusiast. With its convenient shaker top and measuring scoop, applying the fertilizer is a breeze. The 15-7-15 fertilizer blend promotes foliage growth, healthy roots, and flower production, as well as overall plant health and disease resistance. Simply follow the package directions for the optimal amount to use and apply directly to the soil or gently work it into the roots. Use every Spring for strong growth and vibrant plants. Suitable for all annuals, perennials, and shrubs, this time-release fertilizer provides your plants with the nutrients they need when they need it. For an added bonus, there is also a water soluble fertilizer available from Proven Winners.

Overall, the Proven Winners ZZFTMR101ZF0 Continuous Release Fertilizer is a reliable and effective choice for any plant lover. With its easy-to-use design and nutrient-rich blend, it provides the necessary nutrients for strong and healthy plant growth. The controlled release feature ensures that your plants receive the right amount of fertilizer at the right time. While it may not offer any groundbreaking advantages over other similar products, it is a solid option that delivers results. Whether you’re a seasoned gardener or just starting out, this fertilizer will help your plants thrive.

Feed ME! Time Release Fertilizer for Orchids and Houseplants

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9.2/10

The Feed ME! Time Release Fertilizer is a famous Michigan State formulation that is specifically designed for orchids. It is a urea-free fertilizer that is recommended for use with reverse osmosis, rain, or tap water low in alkalinity. This 8 oz granular fertilizer is perfect for indoor houseplants such as orchids, succulents, and more. It promotes healthy growth and blooming, making your plants thrive. The instructions for use are included, ensuring easy application. With same-day shipping, you can start feeding your plants right away. Overall, this fertilizer has received great reviews and is highly recommended by users.

The Feed ME! Time Release Fertilizer is a highly recommended fertilizer for orchids and indoor houseplants. Its famous Michigan State formulation, urea-free composition, and compatibility with specific types of water make it ideal for maintaining healthy plants. Users have reported significant improvements in growth and blooming, with some even reviving near-death plants. Although it may have limited effects on other types of plants, it has shown remarkable results on orchids and hibiscus. The included instructions make it easy to use, and the same-day shipping ensures quick delivery. Just remember to store the granules properly to avoid clumping and color change. Overall, this fertilizer receives high praise for its effectiveness and is definitely worth considering for orchid enthusiasts.

Jobe's Flowering Plant Food Spikes, 50 Spikes per Package

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

Jobe's Fertilizer Spikes for Flowering Plants are a convenient and effective way to keep your flowering houseplants healthy and fertilized. These spikes provide a continuous supply of important nutrients right at the roots, where plants need it most. With slow and safe feeding, the spikes offer effective nourishment for 60 days. They are easy to use and ensure that your plants thrive and grow beautifully. Each package contains 50 spikes, and this bundle includes 2 packages.

Score: 8/10

Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

Osmocote Smart-Release Plant Food Plus is a high-quality slow-release fertilizer that feeds plants for up to 6 months. With its unique formula, it provides a balanced blend of nutrients and takes into account soil temperature to ensure optimal nutrient release and uptake by plants. This fertilizer is suitable for both outdoor and indoor plants, making it versatile for various gardening needs. It is easy to use and mistake-proof, even if over-applied. Osmocote Smart-Release Plant Food Plus comes with a performance guarantee, and if unsatisfied, customers can receive a full refund. Overall, it is a reliable and effective plant food that promotes healthy growth and improves the vitality of your plants.

Osmocote Smart-Release Plant Food Plus is a reliable and effective fertilizer that provides long-lasting nourishment for your plants. Its slow-release formula ensures consistent feeding for up to 6 months, promoting healthy growth and vibrant foliage. The unique nutrient release mechanism based on soil temperature helps plants take up the nutrients more efficiently. With its performance guarantee and full refund policy, you can purchase this fertilizer with confidence. The only downside is that it can be challenging to evenly distribute the granules among a large number of plants without wasting too much of the product. Overall, if you’re looking for a convenient and effective plant food, Osmocote Smart-Release Plant Food Plus is a great choice to enhance the vitality of your indoor and outdoor plants.

Organic Fertilizer Spikes for Fruit Trees

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9.5/10

Jobe’s Organics Fruit & Citrus Tree Fertilizer Spikes are the ideal organic solution for in-ground fruit trees. They are pre-measured time release fertilizer spikes that provide nourishment at the roots, promoting healthy growth and abundant blooms. These spikes are certified organic by the USDA and contain Jobe’s Biozome, a proprietary microorganism that enhances soil conditions and helps plants resist disease, insects, and drought. The spikes are easy to use, preventing waste and run-off. With a guaranteed analysis of (3-5-5), each package contains 6 spikes. Customers have praised these spikes for their effectiveness in promoting citrus tree growth and bloom. They are larger in size compared to other fertilizer stakes, making them suitable for small lemon plants as well.

Jobe’s Organics Fruit & Citrus Tree Fertilizer Spikes are a highly effective and convenient solution for promoting healthy growth and abundant blooms in fruit trees. The spikes provide pre-measured, time-release nourishment at the roots, ensuring optimal nutrition throughout the growing season. The inclusion of Jobe’s Biozome enhances soil conditions, making plants more resistant to disease, insects, and drought. Certified organic, these spikes are perfect for environmentally conscious gardeners. While they may require careful dosing to prevent nutrient imbalances, their ease of use and prevention of waste make them a popular choice among users. With glowing reviews and proven results, Jobe’s Organics Fruit & Citrus Tree Fertilizer Spikes are a must-have for any fruit tree enthusiast.

Jobe’s Fertilizer Spikes are a fantastic option for anyone looking to provide their flowering houseplants with long-lasting and effective nourishment. These spikes deliver important nutrients right to the roots of your plants, ensuring they grow beautifully and thrive. Easy to use and with a feeding duration of 60 days, these spikes provide convenience and peace of mind. While they may be too small for larger garden use, they are perfect for potted plants. The only drawback is the slightly higher price, but the results make it worth it. Overall, Jobe’s Fertilizer Spikes for Flowering Plants are a must-have for any plant enthusiast.

BioGold Bonsai Fertilizer Pellets

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

BioGold Bonsai Fertilizer Pellets are a time-released plant food that provides excellent balance of nutrients for bonsai trees and a wide range of house plants. The triangular shape of the pellets prevents them from rolling off the pot, while also deterring pests, mildew, and worms. These clean fertilizer pellets are made of organic components and do not encourage mold growth. With a size of 280 g / 10 oz, this product is highly rated by customers and is known for its easy application and long-lasting effect. It is a go-to fertilizer for bonsai enthusiasts and has shown impressive growth rates for trees. However, it may attract squirrels if plants are accessible to them. Overall, BioGold Bonsai Fertilizer Pellets provide a reliable and effective plant food solution.

BioGold Bonsai Fertilizer Pellets provide an excellent plant food solution for bonsai trees and houseplants. With their triangular shape, they stay in place and prevent mold growth. The balanced nutrients in these pellets deter pests and worms while stimulating flowering. You can use this clean fertilizer on a wide range of houseplants, making it versatile and practical. It also offers long-lasting and slow-release effects, ensuring your plants receive the necessary nutrients over time. The odor-free formula and non-toxic nature of these pellets make them safe for pets. Despite the possibility of attracting squirrels, the overall positive reviews and impressive growth rates make BioGold Bonsai Fertilizer Pellets a go-to choice for bonsai enthusiasts and plant lovers.

Jobe's Flowering Plant Fertilizer Spikes, 8-9-12, 18 Spikes per Pack (2 Pack)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

Jobe's Fertilizer Spikes are a time-release fertilizer designed specifically for flowering plants in hanging baskets and potted plants. Each package comes with 18 spikes, and this listing is for a 2-pack. The spikes slowly release fertilizer to provide continuous nourishment to the flowers. They are easy to use and loved by flowers. Users recommend buying these spikes as they have seen great results, with plants blooming and flowering for longer periods of time. However, there was one complaint about the packaging misleadingly showing two packages, whereas customers only received one. Overall, Jobe's Fertilizer Spikes are praised for their effectiveness in keeping plants blooming and are recommended for regular use.

Jobe’s Fertilizer Spikes for Flowering Plants are highly praised for their effectiveness in promoting blooming and longer flowering periods in potted and hanging plants. Users have found them easy to use and recommend using them every 8-12 weeks. The spikes slowly release fertilizer, providing continuous nourishment to the flowers. However, there have been complaints about misleading packaging, with customers receiving only one package instead of two as shown. Overall, these spikes are a great option for plant enthusiasts looking for a convenient and effective way to keep their flowering plants healthy and vibrant.

Nutricote 18-6-8 Slow Release Fertilizer

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

The Nutricote 18-6-8 Slow Time Release Fertilizer is a reliable and convenient solution for plant enthusiasts. With its 180-day formula, it only needs to be applied once every 6 months, ensuring a continuous and slow release of nutrients. The fertilizer comes in a resealable, airtight, and waterproof packaging to prevent spoilage and maintain its effectiveness. It also includes a measuring scoop for easy application. Suitable for both indoor and outdoor plants, including orchids and bonsai, this fertilizer contains 100% original Nutricote 18-6-8 without any fillers. The compact size of 1 pound makes it ideal for plant lovers with multiple plants. Overall, it has received positive reviews and a customer rating of 4.6/5.

The Nutricote 18-6-8 Slow Time Release Fertilizer is a reliable and effective option for plant enthusiasts. With its slow-release formula and convenient packaging, it ensures a steady supply of nutrients for up to 6 months. The included measuring scoop simplifies the application process. While it works well for various plants, the small bag size might be limiting for those with extensive collections. Additionally, some users have reported mold growth on plants. Overall, if used as directed, this fertilizer can yield impressive results, making it a worthwhile investment for maintaining healthy and thriving plants.

Fern & Palm Fertilizer Spikes, 16-2-6 Time Release

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.2/10

Jobe's Fern & Palm Fertilizer Spikes are the perfect solution for keeping your indoor palm plants healthy and happy. These slow-release fertilizer spikes provide a steady amount of nutrients to your plants over time, ensuring they thrive all season long. With easy-to-use design, you can simply insert these spikes around each plant's dripline. No wasteful runoff or mess to worry about. Jobe's fertilizer spikes go straight to the root of the plant, delivering the perfect amount of nutrients. Whether you're a seasoned gardener or just starting out, Jobe's Fern & Palm Fertilizer Spikes are a must-have for any palm plant lover.

Jobe’s Fern & Palm Fertilizer Spikes are the perfect solution for any indoor palm enthusiast. These slow-release spikes provide consistent nutrients to your plants, ensuring they stay healthy and vibrant throughout the season. The easy-to-use design makes them suitable for both experienced gardeners and beginners. With no wasteful runoff or mess, you can have peace of mind while nourishing your plants. However, be cautious with the packaging as it can be prone to spills. Overall, these spikes are a fantastic investment for maintaining the health and beauty of your palm plants.

Nutricote 18-6-8 Total 180 Day Time Release Fertilizer (1, 3 lb.)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

Give your plants the boost they need with Nutricote 18-6-8 Total 180 Day Time Release Fertilizer! This fertilizer is a total package of N-P-K (nitrogen, phosphorus, and potassium) along with key micronutrients, providing everything your plants need over their growth cycle. The slow-release formula ensures superior control and dependable nutrient release, promoting strong and healthy plant growth. Whether you have orchids, bromeliads, nursery plants, or potted plants, this fertilizer is suitable for all your plants. With an impressive customer rating of 4.8/5, users have praised its effectiveness and seen immediate results. Sprinkle it on top of the potting medium and enjoy up to 180 days of nourishment for your plants. Get ready for a vibrant and flourishing garden!

If you’re looking to boost the growth and health of your plants, Nutricote 18-6-8 Total 180 Day Time Release Fertilizer is an excellent choice. Its slow-release formula ensures long-lasting nourishment for up to 180 days, providing your plants with the nutrients they need over their growth cycle. From seedlings to mature plants, this fertilizer offers superior control and effective nutrient release. It’s versatile and suitable for various types of plants, including orchids, bromeliads, nursery plants, and potted plants. With positive reviews and immediate results reported by users, you can trust Nutricote to promote healthy and vibrant plant growth. The only downside is the lack of Prime shipping and potentially slower shipping times. Overall, this fertilizer is a great investment for avid gardeners and plant enthusiasts alike.

Jobe's Palm Tree Fertilizer Spikes

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

Jobe's Palm Tree Fertilizer Spikes 10-5-10 Time Release Fertilizer is a great product for all outdoor palm trees. With its 10-5-10 formula and special micro-nutrients like sulfur, magnesium, iron, and zinc, this fertilizer provides the necessary nutrients to support palm tree growth. Each package contains 5 spikes, which are easy to use by simply placing them around the edge of the palm tree. The spikes also supplement other palm growing needs with additional nitrogen, phosphorus, and potassium. Customers have reported great results, with their palm trees looking green and healthy after using these spikes. Overall, Jobe's Palm Tree Fertilizer Spikes are effective, easy to use, and provide the necessary nutrients to promote healthy palm tree growth.

Jobe’s Palm Tree Fertilizer Spikes are a great option for promoting healthy palm tree growth. With their easy-to-use design and nutrient-rich formula, these spikes provide excellent results. Customers have reported seeing their palm trees become greener and healthier after using these spikes. While there may be some issues with spikes arriving broken due to shipping, overall, Jobe’s Palm Tree Fertilizer Spikes are highly recommended for anyone looking to enhance their outdoor palm trees.

Fruit & Citrus Fertilizer Spikes

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

Jobe’s Fruit & Citrus Fertilizer Spikes are a convenient and effective way to nourish fruit and citrus trees at the roots. With a pre-measured formula and time-release technology, these spikes provide a continuous supply of nutrients directly to the active roots where the trees need them most. No need to worry about wasteful runoff, mess, hazards, or unpleasant smells. These easy-to-use spikes can be inserted around each tree's dripline, and the slow-release fertilization feeds the trees all season long. Apply early spring and late fall to ensure optimal growth and fruit production. Give your fruit trees the care they deserve with Jobe’s Fruit & Citrus Fertilizer Spikes!

Jobe’s Fruit & Citrus Fertilizer Spikes are the perfect solution for anyone looking to provide their fruit and citrus trees with the necessary nutrients for healthy growth and fruit production. These spikes are incredibly easy to use, with no messy runoff or unpleasant smells. The time-release technology ensures a continuous supply of nutrients directly to the active roots, giving your trees the care they need throughout the entire season. Whether you have Meyer lemon trees, orange trees, or any other fruit-bearing trees, Jobe’s Fertilizer Spikes will help you achieve vibrant and bountiful harvests. Say goodbye to guesswork and messy fertilizers – Jobe’s Fruit & Citrus Fertilizer Spikes have got you covered!

Buyer's Guide: Time Release Fertilizer

• Time release fertilizers are designed to slowly release nutrients to plants over an extended period of time, providing consistent and balanced feeding. Here's everything you need to know before purchasing one:

1. Determine Your Gardening Needs:

• Consider the Type of Plants: Different plants have different nutrient requirements. It's important to choose a time release fertilizer that suits the specific needs of the plants you are growing.
• Identify the Soil Type: The type of soil in your garden can impact the effectiveness of time release fertilizers. Some formulas are specially designed for acidic or alkaline soils, so knowing your soil's pH level is helpful.
• Garden Size: Consider the size of your garden or the number of container plants you have. This will help you determine the quantity of time release fertilizer required.

2. Understand the N-P-K Ratio:

• N-P-K Stands for Nutrient Content: N-P-K ratio represents the three major nutrients found in fertilizers: Nitrogen (N), Phosphorus (P), and Potassium (K). This ratio reflects the percentage by weight of these nutrients in the fertilizer.
• N for Leaf Growth: A higher nitrogen content (first number in N-P-K ratio) is suitable for promoting lush green foliage growth in plants.
• P for Root Development: A higher phosphorus content (second number in N-P-K ratio) aids in root development, flower production, and overall plant health.
• K for Flowering and Fruit Development: A higher potassium content (third number in N-P-K ratio) supports flowering, fruit development, and enhances plant vigor.

3. Choose the Right Release Type:

• Slow-Release Granules: These pellets gradually release nutrients over time, providing a steady supply of food for plants. They are ideal for long-term nourishment and typically last for several months.
• Slow-Release Coated Prills: These coated pellets release nutrients at a controlled rate and are designed to break down over time. They offer a consistent feed for plants and are especially suitable for potted plants.
• Controlled-Release Spikes: These spikes are inserted into the soil, supplying nutrients directly to the plant's roots. They come in various sizes and shapes, providing an easy and targeted feeding solution.
• Water-Soluble Time Release: These fertilizers provide immediate and long-lasting feeding when dissolved in water. They are typically applied through watering, making them convenient for outdoor and indoor plants.

4. Consider Environmental Factors:

• Climate and Weather Conditions: Different fertilizers work better in specific climates. Consider factors such as humidity, rainfall, temperature, and seasonal variations in your region before choosing a time release fertilizer.
• Eco-Friendly Options: If you prefer environmentally friendly options, look for time release fertilizers that are organic, bio-based, or made from sustainable sources. These products can provide effective results while reducing harm to the environment.

5. Read Product Labels and Reviews:

• Check the Contents: Read the product label to ensure it contains all the necessary nutrients your plants require. Look for additional micronutrients that are beneficial for plant growth.
• Application Instructions: Follow the recommended dosage and application instructions provided by the manufacturer. Over-fertilizing can harm plants, so it is essential to apply the fertilizer correctly.
• Read Reviews: Look for user reviews or ask fellow gardeners about their experiences with specific time release fertilizers. Real feedback can help you make an informed decision.