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Tulip Bulb Fertilizer

Support your tulips through their brief but important spring growing season with liquid Tulip Bulb Fertilizer. It provides supplemental nutrition for developing green leaves and the growth that helps bulbs replenish reserves after flowering. Suitable for garden beds and containers when feeding is needed, this water-mixable formula fits into a tulip-care routine without promising that every bulb will rebloom next year.

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When your tulip bulbs may benefit from feeding

  • When tulip leaves emerge and begin active spring growth
  • After flowers fade, while green foliage continues replenishing bulb reserves
  • When container-grown tulips grow in media with documented low nutrients
  • When a prepared bulb bed tests deficient in nutrients the formula can supply

Do not remove green foliage early; tulip rebloom depends on chilling, variety and drainage as well as nutrition

Results you can see

Feeds foliage for deeper color and a brighter, more lively look.

Feeds foliage for deeper color and a brighter, more lively look.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Supports healthy, resilient roots that absorb nutrients more effectively.

Supports healthy, resilient roots that absorb nutrients more effectively.

Works for tulip varieties

  • Darwin Hybrid Tulips
  • Triumph Tulips
  • Single Late Tulips
  • Double Late Tulips
  • Lily-flowered Tulips
  • Parrot Tulips
  • Fringed Tulips
  • Species Tulips
  • Tulip Bulb

How to use

  1. Watering can — bulbs under 6 inches

    1 Tbs (15 mL) per gallon of water

    Feed once weekly through the growing season

  2. Watering can — bulbs over 6 inches

    2 Tbs (30 mL) per gallon of water

    Feed once weekly through the growing season

  3. Hose end sprayer

    Set dial to the above feed rates

    Feed once weekly through the growing season

  4. Leaf misting (optional)

    1 tsp per quart (32 oz) of water

    Spray on leaves every 1-2 weeks

What's inside
A 3-3.6-5.1 ratio aimed at your bulb rather than the bloom you already have. Phosphate at 3.6% supports root development and flower formation, and potassium at 5.1% drives the process that decides next spring: after petals fall, tulip leaves push sugars down into the bulb for a few short weeks before dying back, and potassium governs that sugar movement. Nitrogen sits at 3%, all nitrate — absorbed directly by roots, fast-acting with low burn risk — enough to keep those leaves green and working through the recharge without producing weak, floppy growth.

Beyond NPK: sea kelp (Ascophyllum nodosum) for natural growth compounds, plus calcium at an unusually high 2.1% and 0.75% magnesium, with iron, manganese, zinc, boron, and copper. Magnesium and iron are the two bulb plantings run short of first — both drive the chlorophyll in that post-bloom foliage, and pale, failing leaves in late spring translate directly into a smaller bulb and a thinner flower next year.

How to care for tulips

Light

Full sun, six hours a day or more while the leaves are up in spring. Tulips in shade open smaller flowers and store less energy for the following year.

Soil

Loose, fast-draining soil, pH 6.0 to 7.0. Bulbs rot in heavy, wet ground, so work in grit or compost and skip any spot where water pools after rain.

Water

Water at planting to settle the soil, then keep it moist while leaves and flowers are growing. Once the foliage yellows, let the ground stay dry through summer.

Planting

Plant in fall, 6 to 8 inches deep and 4 to 6 inches apart with the pointed end up, once soil temperatures drop below 60F. Colder zones plant later.

Feeding

Feed Tulip Bulb Fertilizer at planting time, then again as the leaves push up in spring. That second feeding is what rebuilds your bulb for the season after.

Foliage

Deadhead spent flowers, but leave the leaves in place until they yellow, roughly six weeks after bloom. Cutting foliage early starves your bulb and shrinks next year's flower.

Frequently asked questions

How often should I feed tulip bulbs?

Tulip Bulb Fertilizer is fed once weekly through the growing season, with the rate set by shoot height: 1 tablespoon per gallon of water while the shoots are under 6 inches, and 2 tablespoons per gallon once they’re taller. A hose-end sprayer set to those rates covers beds quickly. The stretch that matters most runs from emergence through several weeks after the flowers fade, because that’s when the leaves are pushing sugars down to refill your bulb for next spring.

Why don't my tulips come back like the first year?

Most modern hybrid tulips are bred for one spectacular season and decline afterward even with good care; they were grown in ideal field conditions a garden can’t replicate. You can help them persist longer. Tulip Bulb Fertilizer is aimed at your bulb rather than the bloom you already have, with potassium supporting the sugar movement that rebuilds the bulb after petals fall, and leaving the foliage until it withers gives that process time. For reliable repeat bloom, plant species tulips or Darwin hybrids, which perennialize better than parrot and fringed types.

When can I cut back tulip leaves?

Not until they yellow and wither on their own, usually about six weeks after bloom. Those leaves are your bulb's only means of refilling, and cutting them while green is the surest way to a weak flower or none at all next spring. Snap off the spent flower head once the petals drop so your tulip doesn’t spend energy on seed, and keep feeding Tulip Bulb Fertilizer weekly through that stretch; the nitrogen keeps the leaves green and working while the potassium moves sugars into the bulb.

Should I fertilize when I plant tulip bulbs in fall?

Yes, though for a different reason than most people expect. Next spring’s flower is already formed inside your bulb when you buy it, so fall feeding won’t change that bloom. What it supports is root growth before winter, which anchors the bulb and sets it up to take nutrients quickly in spring. Tulip Bulb Fertilizer at planting covers that. The feeding that shapes the bulb you’ll have the year after is the following spring, from emergence through the weeks after bloom, so plan for both.

Why did my tulips come up short with small flowers?

Usually a cause beyond nutrition: bulbs planted too shallow, small or soft bulbs to begin with, a warm winter that didn’t supply enough cold, or overcrowding after several years in place. Plant large, firm bulbs six to eight inches deep, and lift and divide crowded plantings after the foliage dies back. The part you can control each year is bulb size, and that’s what Tulip Bulb Fertilizer works on: consistent weekly feeding through spring, especially after bloom, builds a bigger bulb for a taller, fuller flower next season.

When will I see results?

Foliage responds first. All of the nitrogen in Tulip Bulb Fertilizer is nitrate, which roots take up directly, so expect greener, sturdier leaves within 2–3 weeks. The flower payoff arrives next spring by design: feeding through and after this year’s bloom builds the bulb that produces next year’s display, with phosphorus supporting flower formation and potassium moving sugars into storage. There’s no way to improve a flower that’s already open; the work is always for the following season.

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Tulip Bulb Fertilizer 8oz $11.99