Best Bulb Fertilizer For Tulips: 10 Options Compared

#1 · Best Overall

1. Espoma Organic Bulb-Tone

• Weight: 4 lb
• Form: Granules

Best for: Organic bulb-bed feeding.

Why it ranks #1: Names tulips among its fall-bulb uses and gives a 3-5-3 analysis with 6% calcium in a natural and organic granular blend.

Espoma’s natural and organic Bulb-tone formula combines a 3-5-3 analysis with 6% calcium, giving tulip growers a bulb-specific granular option for planting or post-bloom feeding. Its stated use also covers other spring- and fall-flowering bulbs, making it suitable for beds with a mix of bulb varieties.

The granules are intended for use when planting or for feeding after spring bulbs bloom, so one product can serve at two points in a bulb-growing routine. The 3-5-3 analysis and 6% calcium provide specific nutrient information for gardeners choosing a bulb formula, while the Bio-tone-enhanced blend is described as natural and organic. Its listed use includes tulips, daffodils, crocus, hyacinths, gladioli, and lilies, which suits mixed bulb plantings.

Skip it if you need a liquid plant food; TPS NUTRIENTS Bulb Fertilizer is listed in liquid form and has directions to mix it with water.

Choose this for tulip beds where an organic granular bulb food can be used at planting or after bloom. Its broad listed bulb range suits mixed plantings, though it is not a liquid feed.

Listed on Amazon as: Espoma Organic Bulb-Tone 3-5-3 Natural & Organic Fertilizer and Plant Food for All Spring and Fall Bulbs. 4 lb. Bag. Use for Planting & Feeding to Promote Vibrant Blooms

#2 · Tulip-Specific Formula

2. SouthernGRO Dutch Bulb Food

• Weight: 4 lb
• Form: Granules

Best for: In-ground bulb beds.

Why it ranks #2: Explicitly lists tulips as a suitable bulb and states a 07-08-05 analysis; the supplied directions caution that it is not intended for containers.

SouthernGRO Dutch Bulb Food pairs a 07-08-05 analysis with an explicit focus on root development, giving in-ground tulip growers a granular formula with named nutrient proportions. Its listed bulb range also includes daffodils and iris, making it relevant to beds containing several kinds of flowering bulbs.

The product directions describe applying it to soil around bulb plants, a practical match for garden beds where tulips and other listed bulbs grow in the ground. Its 07-08-05 analysis gives gardeners a specific formulation to consider, and the product description connects the food with root development and larger flowers. The label expressly says it is not intended for container use, so it is a clearer fit for outdoor soil plantings than potted bulbs.

Skip it if you grow tulips in pots; Burpee Bone Meal Fertilizer is listed for adding to potting soil or mix.

Pick this for in-ground tulip beds where a granular food with a specified analysis and root-development focus fits the planting. Avoid it for container-grown bulbs, which the product information specifically excludes.

Listed on Amazon as: Dutch Bulb Food 07-08-05 4lb. Bag

#3 · Liquid Tulip Feed

3. TPS Tulip Bulb Fertilizer

• Weight: 0.28 kg
• Form: Liquid

Best for: Liquid tulip feeding.

Why it ranks #3: Its title and description are tulip-specific, with liquid feeding intended for fall and early-spring stages and support for rooting and spring blooms.

TPS NUTRIENTS offers an 8-ounce liquid plant food specifically named for tulips, with feeding positioned around fall planting and the pre-bloom stage. Its stated focus on rooting and spring blooms gives growers a targeted option when they want liquid nutrition for developing bulbs rather than a general garden fertilizer.

The product is described as balanced nutrition for bulb plants, intended to feed without overstimulating or stressing developing bulbs. Its fall and early-spring timing aligns with planting and pre-bloom stages, while the stated support for rooting and spring blooms connects feeding with both early development and flowering. The liquid form distinguishes its application style from granular bulb foods, but the supplied details do not give a dilution rate or application schedule.

Skip it if you prefer a granular organic bulb food with a stated analysis; Espoma Organic Bulb-Tone 3-5-3 provides those details.

This suits tulip growers seeking a liquid feed for planting or pre-bloom stages, especially when rooting and spring flowering are the priorities. The listing does not provide a dilution rate or schedule, so those details are not available here.

Listed on Amazon as: Tulip Bulb Fertilizer – Liquid Plant Food for Bigger Blooms & Stronger Bulb Development, 8 oz

#4 · Micronutrient Blend

4. Cz Garden 4-10-10

• Weight: 4 lb
• Form: Granules

Best for: Multi-purpose bulb beds.

Why it ranks #4: Lists a 4-10-10 formula with 2% iron and micronutrients, and its verified facts identify use for below-ground bulbs including hyacinths and daffodils.

Cz Garden Supply’s 4-10-10 formula adds 2% iron and micronutrients to a bulb-and-bloom fertilizer, giving tulip growers a granular option with more than the primary N-P-K nutrients specified. Its listed uses span bulbs and indoor or outdoor flower gardens, making it applicable beyond a single tulip bed.

The 4-10-10 analysis identifies the primary nutrient proportions, while the additional 2% iron and micronutrients provide further formulation detail for gardeners comparing bulb foods. Its granular form and resealable, easy-pour pouch support portioning and keeping the remaining product for later use. Listed applications include below-ground bulbs such as amaryllis, hyacinths, daffodils, and gladioli, alongside indoor and outdoor flowers, lawns, and garden vegetables.

Skip it if you want a product with explicit tulip feeding stages; TPS NUTRIENTS Tulip Bulb Fertilizer lists fall and early-spring feeding.

Choose this for gardeners who want a granular 4-10-10 bulb food with iron and micronutrients for varied plantings. Tulips are not named in the supplied application examples, and a tulip-specific schedule is not provided.

Listed on Amazon as: 4-10-10 Bulb and Bloom Fertilizer – Made in USA – 2% Iron + Micronutrients Plant Food for Indoor/Outdoor Flower Gardens and Trees

#5

5. Lilly Miller Bulb & Bloom

• Weight: 4 lb
• Form: Powder

Best for: Slow-release bulb beds.

Why it ranks #5: Provides a stated 4-10-10 analysis and slow-release feeding; its listed phosphorus and potassium are described as supporting bright, vigorous blooms.

Lilly Miller Bulb & Bloom Food combines a 4-10-10 analysis with slow-release feeding, giving tulip growers a powder fertilizer intended to support bright, vigorous blooms over time. Its phosphorus-and-potassium emphasis makes it a targeted option for bulb and bloom applications rather than an unspecified general-purpose plant food.

The 4-10-10 analysis gives a specific nutrient profile, and the listing connects its phosphorus and potassium combination with bright, vigorous blooms. Slow-release feeding may suit gardeners who prefer a powder applied for continued feeding rather than a liquid used during watering. The product is identified as bulb and bloom food, while the supplied details advise gloves and eye protection during application and caution against inhaling the product.

Skip it if you want a liquid feed with water-mixing directions; TPS NUTRIENTS Bulb Fertilizer is supplied as a liquid for that workflow.

Consider this for tulip beds where a slow-release 4-10-10 powder and bloom-focused nutrient profile match your feeding approach. Its powder application calls for protective equipment and care to avoid inhalation.

Listed on Amazon as: Lilly Miller Bulb & Bloom Food 4-10-10 4lb

#6

6. TPS Bulb Fertilizer

• Form: Liquid

Best for: Water-mixed bulb feeding.

Why it ranks #6: A liquid bulb feed listed for fall and outdoor planting, with features addressing root growth and flowering in the next season.

TPS NUTRIENTS Bulb Fertilizer is a liquid plant food with explicit directions to mix it with water, giving bulb growers a feed that joins watering with application. The listing places it around fall planting and outdoor seasonal plantings, with stated support for root growth and next-season flowering.

The water-mixing directions establish a clear application workflow: prepare the product with water, then water the plants. Its stated suitability for garden beds, borders, and seasonal bulb plantings makes the liquid formula relevant to outdoor tulip displays. The description also says it feeds bulbs without overstimulation during dormancy and supports root growth and reliable flowering in the next season; protective gloves and eyewear are specified for handling.

Skip it if you prefer a ready-to-apply granular product; Lilly Miller Bulb & Bloom Food is listed as a slow-release powder.

This suits outdoor tulip growers who are comfortable mixing liquid plant food with water and want to incorporate feeding into watering. It is less convenient for anyone seeking a granular product that does not require this mixing step.

Listed on Amazon as: Bulb Fertilizer, Liquid Plant Food for Bigger Blooms, 8 oz

#7 · Large Organic Pack

7. Espoma Organic Bulb-Tone 18 lb

• Weight: 18 lb
• Form: Granules

Best for: Bulk organic bulb feeding.

Why it ranks #7: Names tulips among its fall-bulb uses and retains the 3-5-3 analysis with 6% calcium; the listing describes an 18-pound bag pack.

Espoma Organic Bulb-Tone comes in an 18-pound listing and uses a natural and organic 3-5-3 formula with 6% calcium, giving gardeners a larger-quantity option for bulb plantings. Its stated use spans tulips and other fall bulbs as well as spring bulbs such as gladioli and lilies.

The granular formula is listed for use when planting or for post-bloom feeding on spring-flowering bulbs, allowing it to fit more than one stage of a bulb-care routine. Its 3-5-3 analysis and 6% calcium provide specific formulation details, while the Bio-tone-enhanced natural and organic blend suits gardeners seeking that type of ingredient profile. The listed bulb range includes tulips, daffodils, crocus, hyacinths, gladioli, and lilies.

Skip it if you need a liquid bulb feed rather than granules; TPS NUTRIENTS Bulb Fertilizer is a liquid product with water-mixing directions.

This suits gardeners feeding multiple tulip and other bulb plantings who want an organic granular formula and can use the listed larger quantity. Consider the California Proposition 65 warning before choosing it.

Listed on Amazon as: Espoma Organic Bulb-Tone 3-5-3 Natural & Organic Fertilizer and Plant Food for All Spring and Fall Bulbs. 18 lb. Bag. Use for Planting & Feeding to Promote Vibrant Blooms – Pack of 2

#8

8. Burpee Bone Meal

• Weight: 3 lb
• Form: Powder

Best for: Organic root-building amendment.

Why it ranks #8: Listed for bulbs and supplies phosphorus and calcium for root development, but it is a broader bone meal rather than a tulip-specific formula.

Burpee Bone Meal supplies phosphorus and calcium from bone meal, giving tulip gardeners a soil amendment focused on root development and early growth. It can be added to soil or potting mix, so its stated use accommodates both garden beds and containers before planting or during the growing season.

The powder form can be added to soil or potting mix, making it usable in either beds or containers according to the listing. Burpee says the bone meal breaks down slowly, which supports a gradual nutrient-release approach rather than a liquid feeding routine. Its phosphorus and calcium are linked to stronger roots, early-season growth, and blossoms, while OMRI listing makes it an option for gardeners following organic gardening practices.

Skip it if you want a liquid product with directions to mix into water; TPS NUTRIENTS Bulb Fertilizer is listed for that method.

This is a fit for tulip growers adding bone meal to beds or potting mix who value root-focused nutrients and slow breakdown. Choose another format if you need a liquid feed for mixing with water.

Listed on Amazon as: Burpee Bone Meal Fertilizer | Add to Potting Soil | Strong Root Development | OMRI Listed for Organic Gardening | for Tomatoes, Peppers, and Bulbs, 1-Pack, 3 lb (1 Pack)

#9

9. Earth Science Natural Bone Meal

• Weight: 1.5 milligrams
• Form: Granules

Best for: Natural bone meal for bulbs.

Why it ranks #9: The listing identifies bulbs among its uses and describes natural phosphorus for early growth and root development, without a stated NPK analysis.

Earth Science Natural Bone Meal provides a natural phosphorus boost in granules, giving tulip growers a root-development-focused supplement for bulbs and garden plantings. The listing also names potted plants, trees, and shrubs, so this plant mix can serve beyond a dedicated tulip bed.

The product description links its phosphorus to early plant growth and root development, making it relevant to tulips establishing in a garden. Its listed uses include bulbs, roses, flowers, potted plants, trees, and shrubs, which may suit gardeners maintaining varied plantings with one bone meal product. Granules distinguish its application form from liquid feeds, though the supplied details do not specify an N-P-K analysis or an application schedule.

Skip it if you want a bulb food with a stated analysis; Espoma Organic Bulb-Tone 3-5-3 lists its nutrient proportions and calcium content.

Choose this as a natural bone meal supplement for tulips when root development and use across varied plantings are priorities. The listing does not provide an N-P-K analysis or application schedule for planning a specific feeding routine.

Listed on Amazon as: Earth Science Natural Bone Meal Plant Food—3 lb—Plant Mix for Bulbs, Gardens, Potted Plants, Trees, and Shrubs

#10

10. Espoma BT4 Bulb-Tone

• Weight: 43 lb
• Form: Granules

Best for: Slow-release garden feeding.

Why it ranks #10: Its title gives a 4-10-6 analysis, but the description's package information conflicts with the stated 4-pound title, and tulip-specific use is not given.

Espoma BT4 is listed as a 4-10-6 granular plant food with slow-release nourishment for up to several weeks, giving tulip growers a sustained-feeding option. Its stated suitability for new plantings and established landscapes lets gardeners consider it for both fresh bulb beds and existing flower areas.

The granules are described as spreading evenly and dissolving quickly in soil, which supports straightforward application across beds and landscapes. A slow-release formula provides continuous nourishment for up to several weeks, reducing the need for frequent feeding according to the listing. The 4-10-6 analysis and stated use for gardens, lawns, and flower beds make it a broad plant-food option, while safety information advises keeping pets from eating the granules.

Skip it if you want a formula specifically identified as natural and organic for bulbs; Espoma Organic Bulb-Tone 3-5-3 has that stated ingredient profile.

This fits tulip growers seeking granular, slow-release feeding for flower beds or broader garden areas. Keep the granules away from pets, and note that the supplied listing describes a general plant food rather than a tulip-specific formula.

Listed on Amazon as: Espoma BT4 4 Lbs Bulb-Tone 4-10-6 Plant Food