Best Garden Fertilizers for House Plants of 2026

Miracle-Gro Plant Food 2-Pack is a convenient solution for all your indoor houseplants, including edibles. It feeds your plants instantly, either directly to the soil or mixed with water, making plant care hassle-free. By applying it once a week, you ensure your plants receive the essential nutrients they need to thrive. The product's ability to feed all indoor plants, including edibles, instantly, and with minimal effort, makes it a must-have for plant lovers.

The Miracle-Gro All Purpose Fertilizer is designed to nourish a wide variety of plants, whether indoors or outdoors. It supports the growth of everything from roses and flowers to vegetables and trees, making it a versatile choice for any gardener. The formula is packed with essential nutrients like nitrogen, phosphorus, and potassium, which are crucial for healthy plant development. When you use this fertilizer, you'll notice your plants growing bigger and more vibrant quickly. Application is simple too—just mix the recommended amount with water, making it easy to feed your plants regularly and keep them thriving.

Bonide Bontone II Rooting Powder promotes quick root development from cuttings, seeds or bulbs. Its plant growth hormone stimulates root production in a wide range of plants, including ornamentals, vegetables, fruit trees, and berries. It is designed for use on azaleas, mums, geraniums, pachysandra, poinsettias, and more. Ideal for transplants, this product facilitates the production of healthy roots.

The Miracle-Gro Indoor Plant Food Spikes are an easy-to-use fertilizer for all indoor plants. These spikes are filled with micronutrients that indoor plants need and feed continuously for up to two months. When used as directed, they are safe for all indoor, potted plants. This product simplifies indoor plant care and allows you to enjoy vibrant potted plants in your home, office, or business.

Easy Peasy Plant Food is a liquid fertilizer specifically formulated for indoor potted plants. It contains a balanced 4-3-4 nutrient blend, which ensures deep green plant growth and the overall health of your houseplants. With a high concentrate, it lasts much longer than other products, providing indoor plant fertilizer for more houseplants than any other competitor. It is easy to use, requiring only 1 teaspoon of the product with a minimum of 2 cups of water. This feature makes it not only easy but also convenient to use. By reducing waste, it is an eco-friendly choice.

The Organic Ready to Spray Orchid Food Mist is an all-natural, urea-free mix that promotes strong roots, green leaves, and stunning blooms for all potted orchid types. The pre-mixed liquid fertilizer is easy to use and creates a fine mist for gentle weekly feedings to encourage long-term plant health and vitality. The spray is perfect for flowers in pots with bark, sphagnum moss, pumice, perlite, and other organic potting mixes, and can be used on all orchid varieties, including phalaenopsis, cattleya, vanda, cymbidium, denbrobium, and others.

Purived All-Purpose Fertilizer is a convenient solution for your indoor and outdoor plants. One bottle can make up to 50 gallons of a nutrient-rich and odorless fertilizer, ensuring you get great value. It’s easy to use; simply mix a capful with a gallon of water and you're ready to feed your plants instantly. The formula is designed for all types of feeding methods, whether you prefer soil drenching, foliar feeding, or hydroponics. This all-purpose fertilizer provides essential nutrients to keep your plants healthy and thriving.

Southside Root Drops is a liquid rooting vitamin that helps you grow stronger roots faster. Its dual-action formula speeds up root development and makes roots healthier, giving your cuttings a better start. The liquid form is easy to use and works well in water, soil, or special growing mediums like leca or moss, making your propagation tasks simpler and less messy. When you transplant your plants, this product helps reduce shock, so your plants adjust to their new environment with less stress. Plus, it’s concentrated, so a little goes a long way, saving you money while giving great results.

The Miracle-Gro Blooming Fertilizer is designed to help your indoor flowering plants grow more vibrant blooms by providing essential nutrients. This liquid fertilizer works quickly, feeding your plants right away for faster results. You can easily apply it once a week during spring and summer, making it simple to keep your plants healthy during their growing season. Whether you pour it directly onto the soil or mix it with water in a watering can, this fertilizer offers flexible options to fit your plant care routine with ease.

The Grow Queen Liquid Fertilizer offers a powerful 5-5-5 organic formula that feeds your indoor plants quickly without causing any damage. It’s perfect for daily use, helping your houseplants, tropicals, and potted plants grow stronger roots and greener leaves. This liquid fertilizer dissolves instantly in water, making it easy to use and ideal for regular weekly feeding to boost visible growth fast. Beyond basic nutrients, it nourishes the beneficial microbes in your soil, improving soil health and helping your plants absorb nutrients better. Plus, it contains sea kelp extract, which encourages rapid root growth and vibrant foliage, giving your plants a natural boost without harsh chemicals.