How to Use Earthbox Planter: Top Options That Make Container Gardening Easy (2026)

The EarthBox 81100 Replant Kit is a simple, practical solution for anyone who already owns a standard EarthBox Growing System. Instead of buying a whole new planter each season, this refill pack gives you everything you need to replenish the nutrients that get used up after a full year of growing. It contains a 1-pound bag of fertilizer, a 1-pound bag of dolomite, and two black/white mulch covers, all pre-measured to match the EarthBox's specific requirements. This kit is designed for gardeners who want to keep their EarthBox garden productive without the hassle of figuring out soil amendments themselves.

The standout feature here is the convenience. The fertilizer and dolomite are already balanced for the EarthBox's unique aeration and watering system, so you don't have to worry about mixing ratios or buying multiple products. The mulch covers are a nice bonus, too. They help suppress weeds, keep the soil temperature steady, and prevent moisture from evaporating too quickly. In real-world use, this means less watering and weeding for you, while your plants get a more consistent environment to thrive in.

The build quality is straightforward. The fertilizer and dolomite come in sealed bags that keep them fresh until you're ready to use them. The mulch covers are made from durable material, though they're not heavy-duty. They fit snugly over the standard EarthBox, and the black/white design means you can flip them depending on your climate. White side up reflects heat in warmer weather, black side up absorbs warmth in cooler conditions. It's a simple design choice that adds versatility.

One drawback is that this kit only works with the standard EarthBox system. If you have a different brand of planter, the proportions won't be right. Also, the kit doesn't include the actual box or any plants, so you need to already own an EarthBox or buy one separately. Some gardeners might also find the fertilizer a bit strong for certain delicate crops, like strawberries or herbs, so it's best to check the recommended plant list from EarthBox.

Overall, the EarthBox Replant Kit delivers exactly what it promises: a straightforward, no-fuss way to keep your EarthBox productive year after year. For anyone who already uses this system, it's a smart and affordable refill that saves time and takes the guesswork out of replenishing nutrients. The high rating (4.7 out of 5) reflects how well it meets that need.

The EarthBox Replant Kit is a targeted solution for anyone who already owns an EarthBox gardening system and wants to keep it productive without the hassle of measuring fertilizers. This pack of four kits provides everything you need to refresh your container for a new season: pre-measured natural fertilizer with an 8-3-5 NPK ratio, dolomite for pH balance, and two mulch covers per kit to suppress weeds and retain moisture. It's designed for organic gardeners growing vegetables, herbs, or flowers.

What sets this kit apart is its convenience. Each kit contains 1 lb. of granular fertilizer and 1 lb. of natural dolomite, so you don't have to worry about mixing ratios or application schedules. The nutrients release gradually, feeding your plants steadily through the growing season. The included mulch covers are a thoughtful addition, reducing the need for weeding and helping the soil stay consistently moist. This combination can lead to healthier plants and better yields with less effort.

Build quality is solid, as you'd expect from EarthBox, a trusted name in container gardening. The fertilizer granules are uniform and easy to apply, and the mulch covers are durable enough to last a season. However, these kits are designed exclusively for EarthBox containers, so they won't work with other planters. Also, there are no user reviews yet, which makes it hard to confirm performance claims. But given the brand's reputation and the straightforward design, this kit is a practical choice for dedicated EarthBox users.

A minor drawback is that you need to buy the kit every season if you want to reuse your EarthBox, which adds an ongoing cost. But the time saved and reduced guesswork may be worth it for serious gardeners. If you already own an EarthBox and value organic, no-fuss replanting, this kit delivers exactly what it promises.

Brand: EarthBox

Model: 8-3-5

Item Form: Granules

NPK Ratio: 8-3-5

Number of Kits: 4

Fertilizer Weight per Kit: 1 lb.

Dolomite Weight per Kit: 1 lb.

Mulch Covers per Kit: 2

Intended Plants: Vegetables, herbs, flowers

Organic: Yes

The EarthBox Organic Terra Cotta Kit brings together everything you need to start growing your own vegetables, fruits, and herbs without the hassle of a traditional garden. Designed for anyone with limited outdoor space, these self-watering planters work beautifully on balconies, patios, or even rooftops. With two planters per kit, you can expand your harvest right away.

The real magic lies in the EarthBox's fully automated watering system. A 3-gallon reservoir feeds water to the roots as needed, so you never have to worry about overwatering or underwatering. Combined with the included aeration screen and mulch cover, the system creates an ideal growing environment that produces bigger yields with less fertilizer and water compared to conventional gardens. Many users find that setup is straightforward, and once planted, the maintenance is truly minimal.

Each planter measures 29 inches long by 13.5 inches wide by 11 inches tall, holding 2 cubic feet of growing media. The components are made from food-safe, UV-stabilized plastic that holds up well in full sun. The terra cotta color gives it a classic look, though the material is actually a durable plastic, not fired clay. The inclusion of four caster wheels under each planter makes it easy to reposition your garden to chase sunlight or shelter from storms.

Keep in mind that the kit does not include potting soil or the staking system needed for vining plants. You'll need to purchase those separately. Also, some gardeners might prefer a genuine clay pot, but the lightweight plastic makes handling much easier. Assembly is required for the casters and fill tube, but it's simple and takes only a few minutes.

Overall, the EarthBox Organic Terra Cotta Kit is a smart investment for anyone who wants a productive vegetable garden without the constant work. Its self-watering design, durable construction, and included organic amendments make it a standout choice for beginner and experienced gardeners alike. If you're short on space or time, this kit delivers impressive results with very little effort.

The EarthBox 81100 Replant Kit is a convenient all-in-one solution for anyone using EarthBox container gardening systems. Each pack contains five complete replant kits, each with pre-measured fertilizer, dolomite, and reversible mulch covers. This product is designed for both seasoned gardeners and beginners who want a low-maintenance way to grow vegetables, herbs, or flowers without the hassle of measuring and guessing.

The standout feature is the pre-measured balance of fertilizer and dolomite. These ingredients release nutrients at just the right pace throughout the growing season, so plants get steady feeding. The included mulch covers are a nice bonus - they're reversible (black on one side, white on the other) to help manage heat and light, and they keep weeds at bay while retaining moisture. According to customer reviews, these kits produce impressive results: tomatoes grow into tall vines with dozens of fruits, eggplants and kale flourish, and the whole process is nearly foolproof.

In terms of build quality, the fertilizer and dolomite come as a fine powder in 1-pound bags, and the mulch covers are durable enough to withstand a full season. Each kit also comes with clear instructions, making it easy to set up and forget until harvest time. The product's design reflects EarthBox's commitment to simplicity and reliability.

There are a couple of honest drawbacks. First, these kits are only designed to work with EarthBox containers, so you can't use them with other garden beds or pots. Second, if you prefer to mix your own custom fertilizers, these pre-measured kits won't offer that flexibility. Also, the five-pack might be more than a small garden needs, though you can always save the extras for next season.

Overall, the EarthBox Replant Kit is a smart choice for anyone who wants great results without constant upkeep. The positive feedback from growers who've seen their tomatoes, peppers, and other veggies thrive speaks volumes. If you have an EarthBox system, this kit takes the guesswork out of replanting and helps you get a bumper crop every time.

The EarthBox 80155 Garden Kit is a self-contained raised bed system designed to take the guesswork out of growing vegetables, herbs, and flowers. With a 3-gallon water reservoir and a patented wicking system, it delivers consistent moisture directly to plant roots, reducing the need for frequent watering. The kit includes organic fertilizer, dolomite, aeration screens, and mulch covers, so you have everything you need to start planting immediately. This is an excellent choice for beginners, apartment dwellers with balcony space, or seasoned gardeners looking to boost production with less effort.

What sets the EarthBox apart is its ability to double the yield of a conventional garden while using less water and fertilizer. The self-watering feature means you only refill the reservoir when it runs dry, eliminating over- or under-watering. In reviews, users consistently praise how well tomatoes, peppers, and herbs flourish in these boxes. One user noted blossoms on all their tomatoes within weeks, while another called it "the best pot ever made." The system also includes a fill tube and mulch cover, which reduce evaporation and keep the soil cool.

Build quality is solid: the plastic container feels sturdy and resistant to UV damage, and the included casters let you roll the box to catch sunlight or move it out of the way. Assembly takes just a few minutes with no tools required. The terra cotta color blends neatly with outdoor decor. At 29 inches long and 14 inches wide, it fits nicely on a patio or deck without taking up too much space.

There are minor downsides. Some users mention that very large indeterminate tomatoes can overwhelm a single box and may need staking or a cage. The wheels work best on flat, hard surfaces; they can wobble on gravel or uneven ground. A few reviewers also note that following the included planting instructions is crucial for success, but that's true for any specialized system.

Overall, the EarthBox 80155 delivers on its promise of a maintenance-free, high-yield garden. It's a smart investment for anyone who wants fresh produce without constant attention. With a 4.7-star rating and thousands of positive reviews, it's one of the most reliable container gardening solutions available.

The EarthBox 80151 Organic Garden Kit is a self-contained, self-watering planter that removes much of the guesswork from growing vegetables, herbs, or flowers. Designed for patios, balconies, and small yards, it's an excellent choice for beginners or experienced gardeners who want a low-maintenance setup. The kit includes the box, aeration screen, water fill tube, two reversible mulch covers, and starter supplies of organic fertilizer and dolomite. Just add your own soil and plants, and you're ready to grow.

The standout feature is the wicking system: a 3-gallon water reservoir sits below the soil, and capillary action draws moisture up exactly when plants need it. This prevents both drowning and drought, a common struggle with container gardening. Users consistently mention that their plants - tomatoes, peppers, herbs, flowers - flourish with minimal effort. The included organic fertilizer (8-3-5) and dolomite give transplants a strong start, and the mulch covers keep weeds down and soil cool.

Build quality is solid. The box is made of UV-stabilized plastic that holds up to seasons of sun and rain. Assembly is straightforward and takes about 10 minutes. The four casters lock in place and roll smoothly, making it easy to chase the sun or wheel the box into a garage during a storm. However, on uneven terrain the casters can be less stable, and users note that the box is best kept on a level patio or deck. The rectangular shape fits neatly against a wall, but it's not as space-efficient as some round planters.

Honest drawbacks: large, heavy-feeding plants may need reservoir refills every day in peak summer. One or two indeterminate tomato vines can quickly fill the whole box, so plan spacing accordingly. Stands are not included; you'll need to buy them separately if you want to avoid bending over. A few customers also mention that the organic fertilizer packet is generous but not enough for multiple growing seasons.

Verdict: The EarthBox 80151 is a reliable, thoughtfully designed gardening system that lives up to its hype. It's especially valuable for anyone with limited space, mobility concerns, or a desire to water less. The included organic amendments and clear instructions make it almost guarantee success for first-time growers. For the price, you get a durable planter plus all the extras, making it a smart investment for productive container gardening.

The EarthBox 8-3-5 Natural Replant Kit (Pack of 2) is a purpose-built refill for the EarthBox gardening system. It includes two pre-measured bags of natural 8-3-5 NPK fertilizer and two bags of dolomite, plus two black mulch covers. Designed to take the guesswork out of seasonal replanting, this kit is ideal for both new EarthBox owners and experienced growers who want a fast, reliable way to refresh their container garden.

Each kit delivers exactly the right amount of nutrients for one EarthBox. The fertilizer feeds plants gradually throughout the season, and the dolomite helps regulate pH and supply calcium and magnesium. Real-world performance is outstanding as confirmed by countless reviews. Tomatoes regularly top six feet, peppers produce heavy yields, and herbs thrive well into fall. The mulch cover locks in moisture and blocks weeds, which cuts down on garden chores.

Build quality is straightforward but effective. The fertilizer and dolomite come in sturdy, labeled bags, and the covers are heavy-duty black plastic that withstands UV rays for a full season. Setup takes only a few minutes: mix the fertilizer and dolomite into the potting mix, fill the box, and cover. The included manual is clear and helpful for first-timers.

The main drawback is cost. At around $33 for a two-pack, it's pricier than buying generic fertilizer and dolomite in bulk. A few customers note this and plan to find cheaper alternatives next season. Also, this kit is useless without an EarthBox planter so it's not a universal solution. But for anyone already invested in the EarthBox system, the convenience and consistent yields justify the price.

Verdict: If you own EarthBoxes and want the easiest possible way to restart them each spring, this Replant Kit delivers. It's proven, straightforward, and backed by a strong track record of happy gardeners. The premium is worth it for the convenience and results.

The EarthBox Container Gardening System is a self-contained raised garden kit designed for hassle-free growing. It is an excellent choice for beginners, apartment dwellers, or anyone who wants fresh vegetables, herbs, or flowers without the constant monitoring that traditional pots demand. The system includes a sturdy plastic container, an aeration screen, a water fill tube, two reversible mulch covers, and an instruction sheet. You simply add your own growing media and plants, and the built-in reservoir does the rest.

The standout feature is the self-watering reservoir, which holds up to 3 gallons of water. This means you only need to refill it every few days even in hot weather, and the aeration screen underneath the soil prevents roots from sitting in water. The mulch cover helps retain moisture and keeps weeds at bay. Real-world performance is consistent: plants get a steady supply of water from below, reducing stress and promoting strong growth. Many gardeners report less frequent watering and healthier plants compared to standard containers.

Build quality is impressive for the price. All plastic components are UV-stabilized and weather-resistant, so they resist fading and cracking after months of sun exposure. The material is food-safe, which matters if you are growing edibles. Assembly is straightforward: you fit the aeration screen, fill the container with media, add the water tube and mulch cover, and plant. The container measures 29 inches long by 13.5 inches wide and 11 inches tall, giving enough room for a variety of crops like tomatoes, peppers, or lettuce. The integrated caster sockets are a nice touch, though you will need to buy casters separately if you want to move the box around.

There are a couple of honest drawbacks. First, the growing media is not included, so you need to buy 2 cubic feet of peat-based mix. This adds to the initial cost. Second, the casters are not included, which limits portability unless you buy them. Third, the reservoir system is bottom-fed with no drainage control, so it may not be ideal for plants that prefer drier soil, like succulents. But for typical garden vegetables and herbs, it works great.

Overall, the EarthBox Container Gardening System delivers on its promise of low-maintenance, high-yield growing. It is well-made, easy to set up, and backed by a strong reputation. If you want a reliable, self-watering planter that takes the guesswork out of watering, this is a solid investment.