Best Garden Fertilizers for Flowers of 2025

Burpee Natural Purpose Granular 4-Lb Organic Food is an all-purpose plant food that provides essential nutrients, calcium, and beneficial microbes to keep your plants healthy and growing all season long. It's perfect for vegetable gardens, flower gardens, herbs, trees, shrubs, and containers. The organic formula promotes plant growth, fruit production, and vibrant blooms, making it a natural fertilizer for your best garden.

Feed your plants instantly with Miracle-Gro Water Soluble All Purpose Plant Food.Full of essential nutrients, this fertilizer promotes bigger, more beautiful plants and can be used on all flowers, vegetables, trees, shrubs, and houseplants. Use it every 1-2 weeks with a watering can or the Miracle-Gro Garden Feeder. Plus, it's safe for all plants and won't burn when used as directed.

Osmocote Smart-Release Plant Food is a high-quality fertilizer designed for seasonal vegetables and perennials. With its NPK ratio of 14-14-14, it promotes strong roots and vigorous above-ground growth, resulting in bountiful harvests. This slow-release plant food is easy to use, as it comes with an applicator and can be mixed into the soil. It is ideal for vegetable gardens, mulched areas around trees and shrubs, and raised beds. The secret behind Osmocote's effectiveness lies in its ability to release nutrients based on soil temperature, ensuring that the plants receive the nutrients they need when they need them. Plus, even if you accidentally apply more than recommended, Osmocote won't harm your plants. With a satisfaction guarantee, you can trust in the performance of Osmocote Smart-Release Plant Food.

Jobe's Flower Fertilizer Spikes are an easy-to-use formula designed specifically for flowering plants. With no mixing or measuring required, these spikes provide a convenient way to feed your plants for up to 2 months. The spikes are specially formulated to provide the essential nutrients that flowering plants need to thrive. Simply insert the spikes into the soil around your plants and let them do the work. The spikes release nutrients slowly, ensuring a continuous feed for your plants. This means you can enjoy beautiful, vibrant flowers without the hassle of constant fertilizing. Jobe's Flower Fertilizer Spikes are a must-have for any gardener looking to enhance the beauty of their indoor or outdoor flowering plants.

Jobe’s Flowering Plant Food Spikes are an easy and effective way to keep your flowering houseplants healthy and fertilized. These spikes provide a continuous supply of important nutrients directly to the roots, where plants need it most. They feed slowly and safely, offering effective feeding for up to 60 days.

Miracle-Gro Bloom Booster is designed to enhance the blooming of your flowers, bringing vibrant colors to your garden. This quick-acting plant food feeds your plants immediately, allowing you to see results faster. You can easily reapply it every 7 to 14 days, ensuring your flowers stay nourished. Whether you have a flower garden or container plants, this formula supports a wide range of annual and perennial species, including roses and hydrangeas. Simply mix it with water for indoor plants or use a Miracle-Gro Garden Feeder for outdoor applications, covering up to 600 square feet of garden space.

BioAdvanced All-In-One Rose and Flower Care Granules is a garden fertilizer that provides strong roots and beautiful blooms to your plants. The granules also work as an insect killer that eliminates Japanese Beetles, Aphids, Leafhoppers, and other pests. The fungicide controls Black Spot, Powdery Mildew, Rust, Southern Blight, and other plant diseases. The product offers systemic and rainproof protection that lasts up to 6 weeks and covers up to 32 roses. However, it is restricted in some states.

Espoma Organic Bloom! is a concentrated plant food and bloom booster designed specifically for all flowering plants. Whether you have annuals or perennials in containers or in your garden, this plant fertilizer is ideal for promoting vigorous growth and blooming. With its natural protein content, enhanced with kelp extracts and humic acids, Espoma Organic Bloom! provides the necessary nutrients to support healthy plant development. Its 1-3-1 fertilizer analysis ensures a balanced nutrient ratio that helps plants thrive. Additionally, this product is approved for organic gardening, meeting all requirements for organic production. Made in the USA by the Espoma Company, a leader in natural organics since 1929, Espoma Organic Bloom! is a reliable choice for garden enthusiasts looking to enhance their flowering plants' performance.

Miracle-Gro Watering Can Singles Plant Food is a no-mess way to feed your plants. The 24 pre-measured packets contain essential nutrients that start to work instantly to promote quick, beautiful results. Feed every 1-2 weeks to grow plants twice as big as unfed plants. It is a convenient way to nourish your garden.

Miracle-Gro Shake 'n Feed All Purpose Plant Food is a powder-formulated garden fertilizer, that provides essential nutrients for productive plants. It contains vital micronutrients and natural ingredients, such as kelp, earthworm castings, feather meal, and bone meal. These ingredients feed the microbes in the soil, which support root strength, development, and increase water efficiency. This fertilizer can be used in both ground and containers, feeds up to 3 months, and won't burn plants when used as directed.