Chrysanthemums, or mums, reward gardeners with vibrant blooms and lush foliage when fed with the right plant nutrients. This guide highlights five highly regarded fertilizers designed to support mums through their growing cycles, from root development to dazzling flowering. Each product below is selected for chrysanthemum compatibility, ease of use, and proven results. Use the buying guide to compare formulations and choose the best fit for your mum plants and gardening approach.
Summary Table of Selected Products
- Mum Fertilizer, Complete Liquid Mum Plant Food for All Chrysanthemum — TPS NUTRIENTS — Liquid, easy-to-use for mums and thriving blooms.
- Miracle-Gro Bloom Booster Flower Food — Miracle-Gro — Water-soluble bloom booster for flowering plants.
- Miracle-Gro Water Soluble All Purpose Plant Food — Miracle-Gro — All-purpose formula for a wide range of plants, quick uptake.
- Jack’s Classic Blossom Booster — Jack’s Classic — Bloom-boosting, 10-30-20 with micronutrients.
- FoxFarm Big Bloom Plant Food — FoxFarm — Liquid concentrate with natural ingredients to support blooms and flavor/aroma.
Mum Fertilizer, Complete Liquid Mum Plant Food for All Chrysanthemum

TPS NUTRIENTS offers a complete liquid fertilizer designed specifically for mum plants. The product supports thriving mums by promoting vibrant blooms and healthy foliage, with easy-to-follow care instructions included. Liquid formulations can provide rapid uptake, helping mums respond quickly to feeding regimes and maintain long-lasting color and vigor.
Miracle-Gro Bloom Booster Flower Food, 10-52-10

This water-soluble bloom booster focuses on flowering plants, offering a higher phosphorus ratio to encourage abundant blooms. It provides quick results and can be applied on a biweekly schedule to sustain continuous flowering for mums in containers or garden beds. It’s suitable for sunny, well-drained sites where mums perform best.
Miracle-Gro All Purpose Plant Food

This all-purpose formula feeds a broad spectrum of plants, including chrysanthemums. With NPK 24-8-16, it supports steady growth of foliage and roots while promoting robust blooms. It’s designed for both indoor and outdoor use and is ideal for gardeners seeking one solution for mixed plant beds.
Jack’s Classic Blossom Booster

Jack’s Classic Blossom Booster is a water-soluble fertilizer with a 10-30-20 ratio, enriched with micronutrients. It’s tailored to enhance color and the number of blossoms in flowering plants, including mums. It supports flexible feeding, whether applied directly to soil or used in a continuous liquid feed system, and is designed to maximize bloom production in warm weather.
FoxFarm Big Bloom Plant Food

FoxFarm Big Bloom is a liquid concentrate designed to promote vibrant blooms and robust flowering across flowers, fruits, and vegetables. Its micro-brewed formula includes earthworm castings and bat guano, delivering a natural nutrient spectrum that supports root health, aroma, and flavor in edible or ornamental mums alike. Suitable for both indoor and outdoor use.
GARDENWISE 10-10-10 Plant Fertilizer Slow Release

Note: Although included in the list, this option is a slow-release granular formula with balanced 10-10-10 nutrients. It’s suitable for outdoor and indoor use, providing up to eight weeks of nutrition with fewer applications. It supports steady growth and flowering in mums, while minimizing the need for frequent feeding.
Osmocote Smart-Release Plant Food Plus

Osmocote Smart-Release provides a slow-release nutrient supply with 11 essential nutrients. Suitable for both indoor and outdoor mums, it feeds up to six full months, helping maintain steady growth and steady blooming across the season with minimal maintenance.
Jack’s Classic 10-30-20 Blossom Booster

Jack’s Classic Blossom Booster, a 1.5 lb water-soluble powder, promotes brighter, more plentiful blooms in flowering plants. It can be used as foliar or root feeding, offering flexibility for stylish mums. The micronutrient mix supports bloom color and abundance, reducing the need for additional feedings.
Buying Guide: Key Purchase Considerations For Mums
- Feeding stage: Early vegetative growth benefits from balanced nitrogen-rich formulas, while blooming stages require higher phosphorus to support flowers. Choose a fertilizer with an NPK ratio aligned to mums’ growth phase.
- Form factor: Liquid feeds provide quick uptake and are suitable for potted mums or rapid adjustment; granules and slow-release options are convenient for garden beds and reduce application frequency.
- Application method: Consider whether you prefer soil feeding, foliar feeding, or a combination. Foliar feeding can deliver nutrients quickly during peak bloom; soil feeding supports root development.
- Micronutrients: Mums benefit from micronutrients such as iron, manganese, and magnesium, which support leaf color and bloom quality. Check product labels for micronutrient content.
- Water quality: Some fertilizers are sensitive to high pH or chlorinated water. If water quality is an issue, consider products designed for easy dilution and consistent results.
- All-purpose vs. bloom-specific: All-purpose formulas work for mixed plantings, but bloom-focused products may yield more abundant or vivid chrysanthemums during peak flowering.
- Environmental considerations: For outdoor mums, select slow-release options to reduce leaching and frequency of application. For container mums, liquid feeds can be tailored to container biology and drainage.
- Storage and safety: Store fertilizers in a cool, dry place and follow label directions to avoid over-fertilization, which can impact plant health.
When choosing a fertilization plan for mums, align your product selection with growth stage, container versus garden bed, and your preferred feeding cadence. The right fertilizer can promote stronger root systems, richer foliage, and a striking display of blooms across the mum’s growing season.