Introduction
There is nothing quite like the anticipation of spring when the first green shoots of tulips and daffodils begin to poke through the soil. These hardy bulbs are the workhorses of the early garden, providing reliable color and cheer after a long winter. While most gardeners plant their bulbs in the fall and leave them in the ground to naturalize, there are many situations where you might need to lift them and keep them safe for a few months.
At Longfield Gardens, we want to help you make the most of every bulb you plant. Whether you are rearranging your flower beds, protecting precious varieties from wet summer soil, or simply found a great deal on bulbs that you aren't quite ready to plant yet, knowing how to store them correctly is a vital skill. Proper storage ensures your bulbs stay healthy, firm, and ready to burst into bloom when they eventually return to the earth.
This guide will walk you through the simple steps of harvesting, curing, and storing your tulip bulbs and daffodil bulbs. We will cover the best environmental conditions to keep them dormant and how to handle bulbs that were forced indoors or purchased late in the season. By following a few straightforward rules, you can ensure your garden remains a vibrant, blooming success year after year.
Why You Might Need to Store Bulbs
For most gardeners in the United States, tulips and daffodils are "plant and forget" additions to the landscape. They thrive in well-drained soil and benefit from the cold temperatures of winter. However, there are three primary reasons why you might find yourself needing to store these bulbs rather than leaving them in the ground.
1. Preventing Overcrowding
Daffodils are excellent at naturalizing, which means they multiply over time to form large, beautiful clumps. While this is generally a positive trait, a clump that becomes too dense will eventually produce smaller flowers or stop blooming altogether. Every three to five years, it is helpful to dig these clumps up, separate the individual bulbs, and store them until the next planting window.
2. Protecting Vulnerable Varieties
While daffodils are quite hardy, some modern tulip varieties are more sensitive. Tulips, in particular, prefer dry soil during their dormant summer period. If your garden has heavy clay soil or if you live in a region with very wet summers, leaving tulip bulbs in the ground can lead to rot. Lifting and storing them in a controlled environment ensures they stay dry and healthy until the autumn planting season arrives.
3. Garden Renovations and Moving
Sometimes, the timing of a garden project doesn't align with the natural lifecycle of the plants. If you are redesigning a perennial border or moving to a new home during the summer, you may need to lift your bulbs to save them from construction or to take them with you. Storing them properly allows you to hit the "pause button" on their growth until your new garden beds are ready.
When to Lift Bulbs for Storage
Timing is the most important factor when it comes to successfully storing bulbs. If you dig them up too early, the bulb will not have enough energy to survive the storage period or bloom the following year. If you wait too long, the foliage may disappear entirely, making it difficult to find the bulbs without accidentally slicing into them with your shovel.
The Golden Rule: Wait for the Yellow
The leaves of tulips and daffodils act like solar panels. After the flowers fade, the foliage continues to absorb sunlight and convert it into energy, which is then stored in the bulb for next year’s growth. You must wait until the foliage has turned completely yellow or brown and has withered significantly.
This process usually takes about six to eight weeks after the flowers have finished blooming. During this time, the foliage might look a bit messy, but it is doing essential work. Resist the urge to trim it or tie it in knots. Once the leaves are limp and yellow, they will easily pull away from the bulb with a gentle tug. This is your signal that the bulb is fully "charged" and ready to be lifted.
Monitoring Soil Conditions
It is easiest to lift bulbs when the soil is slightly moist but not saturated. If the ground is bone-dry and hard, you risk bruising the bulbs as you pry them out. If the soil is too wet, the mud will cling to the bulbs, making the cleaning and drying process much more difficult. Aim for a day when the soil crumbles easily in your hand.
Key Takeaway: Always wait for the foliage to die back naturally before lifting bulbs. This ensures the bulb has stored enough energy to survive dormancy and produce flowers next season.
How to Lift Bulbs Carefully
Once the foliage has yellowed, it is time to get to work. While bulbs are tough, they can be damaged by sharp tools or rough handling, which opens the door for rot and disease.
Tools for the Job
A garden fork is often better than a shovel for lifting bulbs. The tines allow you to loosen the soil around the bulbs without as much risk of cutting through them. If you prefer a shovel or a trowel, make sure to start your digging several inches away from where the stems enter the ground.
The Lifting Process
- Locate the bulbs: Use the remaining withered foliage as a guide.
- Loosen the soil: Insert your fork or shovel into the ground about 6 inches away from the stems. Dig straight down about 8 to 10 inches deep.
- Lever them up: Gently pry upward to loosen the entire clump of soil and bulbs.
- Sift through by hand: Once the soil is loose, use your hands to feel for the bulbs. This prevents the "clink" of metal against the bulb that can cause bruising.
- Remove excess soil: Gently shake the bulbs to remove large clumps of dirt. Do not wash them with water, as excess moisture is the enemy of stored bulbs.
Preparing Bulbs for Storage (Curing)
You cannot move bulbs directly from the damp ground into a storage container. They need a "curing" period to toughen their outer skins and dry out any remaining moisture. This step is critical for preventing fungal growth during the months of storage.
Cleaning and Trimming
After lifting, gently brush off any remaining dry soil with your fingers or a soft brush. If the foliage is still attached but dry, trim it back to about an inch above the bulb. You should also remove any loose, "papery" outer skins that are falling off, but do not peel the bulb down to its white flesh. That brown skin, called a tunic, acts as a protective layer.
The Curing Phase
Spread the bulbs out in a single layer on a tray, a piece of cardboard, or a mesh screen. Place them in a cool, dry, and well-ventilated area that is out of direct sunlight. A garage, a covered porch, or a shed works well.
Leave the bulbs to cure for about one to two weeks. During this time, the outer skins will dry further, and any remaining bits of soil will become easy to flick away.
Inspecting for Quality
Before moving the bulbs to their final storage spot, give each one a quick inspection. A healthy bulb should feel heavy and firm, like a fresh onion.
- Discard any bulbs that feel light, hollow, or "corky."
- Discard any bulbs that are mushy, have soft spots, or show signs of mold.
- Separate any "offsets" or "bulblets." These are the tiny baby bulbs attached to the side of the main daffodil bulb. You can snap these off and store them too; they will eventually grow into flowering-sized bulbs after a few years in the ground.
Choosing the Best Storage Containers
The most common mistake gardeners make when storing bulbs is using plastic bags or airtight containers. Bulbs are living organisms; even in dormancy, they "breathe" and release small amounts of moisture. If that moisture is trapped, the bulbs will quickly rot.
Recommended Containers
- Mesh Bags: Old onion or citrus bags are perfect. They provide 360-degree airflow.
- Paper Bags: A standard brown lunch bag works well. Just be sure not to overstuff it, and poke a few holes in the sides for ventilation.
- Cardboard Boxes: Use a shallow box and line the bottom with a layer of newspaper or dry peat moss.
- Egg Cartons: For smaller tulip bulbs, an egg carton provides a great way to keep them separated and protected.
Using Packing Materials
If you are storing bulbs in a box, it is a good idea to use a "filler" to keep them from touching one another. Dry peat moss, sawdust, or shredded paper are excellent choices. This padding prevents the spread of rot if one bulb happens to go bad, and it helps maintain a stable, low level of humidity.
Creating the Ideal Environment
Once your bulbs are packed, you need to find a home for them that mimics their natural dormant state. The two main factors to manage are temperature and light.
Temperature Requirements
For most tulip and daffodil bulbs, the ideal storage temperature is between 60°F and 65°F. They should never be exposed to freezing temperatures during summer storage, nor should they be kept in a hot, stifling attic. A cool, dry basement or a climate-controlled garage is usually the best spot.
If you are storing bulbs that you intend to "force" for early winter blooms, you will eventually need to provide a colder period (usually 35°F to 45°F), but for general summer storage, moderate indoor temperatures are fine.
Light and Humidity
Bulbs prefer total darkness during dormancy. Light can trigger them to start growing prematurely. Additionally, the storage area must be dry. High humidity encourages mold and fungal diseases like "bulb rot." If your basement is damp, use a dehumidifier or choose a different storage location.
What to Avoid
Keep your bulbs away from ripening fruit, especially apples and pears. These fruits release ethylene gas, which can damage the flower embryo inside the bulb, resulting in "blind" bulbs that produce leaves but no flowers the following spring.
What to do next:
- Check your storage area for a stable temperature between 60°F and 65°F.
- Ensure the area is dark and has good air circulation.
- Verify that there is no ripening fruit nearby.
- Mark your calendar to check the bulbs once a month for soft spots.
Storing Unplanted Bulbs
Sometimes the problem isn't that you've dug up bulbs, but that you have new bulbs that you haven't had time to plant. Perhaps winter arrived earlier than expected, or you simply overbought during a late-season sale.
Can You Keep Bulbs Until Next Year?
The short answer is: it’s difficult. Unlike seeds, which can stay viable for years, bulbs are fleshy storage organs with a limited "battery life." They are designed to be in the ground. If you store tulip or daffodil bulbs through an entire winter and summer without planting them, they will likely shrivel up and die.
The Best Strategy for Late Bulbs
If the ground is frozen and you cannot dig, your best bet is to "pot them up." Plant the bulbs in large containers with potting soil and keep them in an unheated garage or shed. This allows them to get the cold period they need while protecting them from the worst of the winter wind. You can then plant them out in the garden as soon as the soil thaws in the spring.
If you absolutely must store them completely unplanted through the winter, keep them in a refrigerator at about 40°F. Again, ensure there is no fruit in the fridge. Check them frequently to make sure they aren't drying out or getting moldy.
Saving Forced Bulbs for Next Year
"Forcing" is the process of tricking bulbs into blooming early indoors. While it’s a wonderful way to brighten up January and February, it takes a massive amount of energy from the bulb.
Saving Daffodils
Daffodils are quite resilient. If you have forced daffodils in pots, continue to water them and provide light after the flowers fade. Once the foliage turns yellow, you can lift them, cure them, and store them just like garden-grown bulbs. They may take a year off from blooming to recover their strength, but they will eventually return to their former glory.
Saving Tulips
Tulips are much harder to save after forcing. Most gardeners treat forced tulips as annuals and discard them. Because the forcing process is so taxing, these bulbs rarely have the energy to produce a high-quality bloom a second time. However, if you have a favorite variety, you can try the same process as with daffodils—just manage your expectations for the following year.
Summary of the Storage Process
Storing bulbs doesn't have to be complicated. If you follow these basic steps, you will have a very high success rate.
- Wait for the foliage to turn yellow before lifting the bulbs from the garden.
- Gently lift the bulbs using a garden fork to avoid damage.
- Cure the bulbs in a cool, dry, well-ventilated area for two weeks.
- Inspect and discard any bulbs that feel soft, mushy, or suspiciously light.
- Pack bulbs in breathable containers like mesh or paper bags with dry peat moss.
- Store in a dark, cool place (60-65°F) away from ripening fruit.
Storage success is all about airflow and temperature control. By keeping your bulbs dry and cool, you are protecting the tiny flower waiting inside until it's time to grow again.
Conclusion
Gardening is a journey of learning and observation, and mastering the art of bulb storage is a great way to take control of your garden's future. Whether you are dividing an heirloom clump of daffodils or saving your favorite tulips from a soggy summer, the effort you put into storage will be rewarded when those first green tips emerge next spring.
At Longfield Gardens, we believe that every gardener can achieve beautiful results with just a little bit of practical knowledge. Storing bulbs is a simple, rewarding task that ensures your investment in your landscape continues to pay off for years to come. Remember to keep things cool, dark, and dry, and you'll be well on your way to another spectacular spring display.
Next Steps for Success:
- Label everything: Use a waterproof marker to write the variety name and color on your storage bags so you don't have "mystery bulbs" in the fall.
- Set a reminder: Put a note in your phone to check your stored bulbs once a month for any signs of rot.
- Plan your planting: Use the storage time to decide where these bulbs will go next to create the biggest impact in your landscape.
"The secret to a great spring garden often lies in the care you provide during the dormant months. A little patience in the summer leads to a big reward in the spring."
FAQ
How long can I keep tulip and daffodil bulbs in storage?
Hardy bulbs like tulips and daffodils are best planted within six months of being lifted. While they may survive for up to a year if conditions are perfect, their vitality decreases the longer they stay out of the soil. For the best blooms, always aim to get them back into the ground during the following autumn planting season.
Do I need to put my stored bulbs in the refrigerator?
In most cases, no. A cool basement or garage (60-65°F) is sufficient for summer storage. You only need a refrigerator if you are trying to "force" bulbs for indoor winter blooms or if you live in a very warm climate, like Zone 8-10, where the ground doesn't get cold enough to trigger the bulbs' internal clock. If using a fridge, remember to keep them away from fruit.
My stored bulbs have a little bit of blue-green mold on the skin. Are they ruined?
Not necessarily. A small amount of surface mold is common and often harmless. Use a soft cloth to gently wipe it off and ensure the bulbs are moved to a spot with better air circulation. However, if the bulb feels soft or mushy beneath the mold, it has started to rot and should be discarded immediately to prevent the spread to healthy bulbs.
Can I store bulbs in plastic bins if I leave the lid off?
While leaving the lid off is better than sealing it, plastic bins are still not ideal because they don't allow for airflow through the bottom or sides. Cardboard boxes, wooden crates, or mesh bags are much better options. If you must use a plastic bin, line it with a thick layer of dry material like peat moss and ensure the bulbs are not touching each other or the plastic sides.
Further Planning and Planting Help
If you want a refresher before planting time, How to Plant Daffodil Bulbs covers the basics from start to finish.
For a deeper dive into bulb care, How Long Can You Store Daffodil Bulbs? Storage Tips explains how long bulbs stay viable and what storage conditions help them last.
If you are unsure about your climate, the Hardiness Zone Map can help you plan when to plant and when to store.
To compare spring bloomers and get inspired for next year, browse All About Tulips for a broader look at tulip types and planting timing.
For a dependable, high-impact spring display, the Daffodils for Sale page is a great place to start shopping.
And if you want a proven mix of favorites, the Classic Double Daffodil Collection is an easy way to add more ruffled blooms to your garden.
For tulips that are already popular with gardeners, the Best Selling Tulips collection is a strong next stop.
If you prefer a classic tulip form, Triumph Tulips offers a solid mix of reliable spring performers.
Finally, one standout individual bulb to consider is Tulip Darwin Hybrid Apricot Impression, which is available to add to your cart right now.
