Introduction
There is nothing quite like the anticipation of spring when the first green tips of tulips begin to poke through the soil. Choosing your favorite colors and imagining how they will brighten your garden is one of the most rewarding parts of the season. At Longfield Gardens, we want to help you make sure that every bulb you buy or save has the best chance to produce a spectacular show. Whether you just received a new shipment of bulbs or you are trying to save favorites from last year, knowing how to handle them during their "off-season" is key.
Proper storage is not difficult, but it does require a few specific conditions to keep the bulbs healthy and viable. In this guide, we will walk through exactly how to care for your bulbs before they go into the ground and how to preserve them if you choose to lift them after they bloom. From temperature settings to the best types of bags to use, we have the practical tips you need. Following these steps ensures your tulips stay firm, rot-free, and ready to grow.
Storing Bulbs Before You Plant
When your package of fresh bulbs arrives, your first instinct might be to get them into the ground immediately. However, the weather or your schedule might not always cooperate. If you cannot plant your bulbs right away, you need a plan to keep them in peak condition until planting day. For timing by region, check our Hardiness Zone Map.
Unpacking Your Order
The very first thing you should do when your bulbs arrive is open the box. Bulbs are living organisms that need to breathe, and keeping them trapped in a sealed shipping container can lead to moisture buildup. As soon as you bring the box inside, take the bulbs out and check them. We ensure our bulbs are shipped in breathable packaging, but giving them immediate access to fresh air is always the best practice. If you want details on delivery timing, see our Shipping Information.
Spread the bags out rather than leaving them in a pile. This allows air to circulate around each bulb, which prevents the growth of mold or fungus. If the bulbs are in plastic bags with small holes, they are fine for a day or two, but for longer storage, moving them to a mesh or paper bag is a better choice.
Choosing the Right Location
The goal of storage before planting is to keep the bulbs dormant and firm. You want a spot that is cool, dry, and dark. A garage, a basement, or a cool garden shed is usually the perfect location. The ideal temperature for these bulbs is between 40°F and 70°F. If the area is too warm, the bulbs may start to sprout prematurely or dry out. If the area is too damp, they may begin to rot.
Avoid storing your bulbs near ripening fruit, especially apples. Many fruits release ethylene gas as they ripen, which can damage the flower bud inside the tulip bulb. Keep your garden supplies separate from your pantry items to ensure the bulbs stay safe.
Key Takeaway: Quick Start for New Bulbs
- Unpack your bulbs immediately upon delivery.
- Place them in a well-ventilated, cool area (40-70°F).
- Keep them away from ripening fruits and excess moisture.
- Plan to plant them within six weeks for the best results.
How to Store Bulbs After Flowering
While many gardeners in the United States treat tulips as annuals and plant fresh bulbs every fall, you may want to try saving yours for another year. This is common when you have a variety you particularly love or if you need to move them to a different part of the yard. If you are looking for dependable favorites, browse our Best Selling Tulips.
Timing Your Harvest
Success starts with knowing when to dig. You should never dig up tulip bulbs immediately after they finish blooming. The plant needs its leaves to perform photosynthesis, which creates the energy stored in the bulb for next year’s flower. If you cut the foliage too early, the bulb will be weak and may not bloom again.
Wait until the foliage has turned yellow or brown and has begun to wither. This usually happens in late spring or early summer. When the leaves are limp and easily pull away from the bulb, it is a sign that the plant has finished its job and is entering its dormant phase. This is the safest time to lift them from the soil.
The Digging Process
Using a hand trowel or a garden fork, carefully dig around the base of the plants. It is helpful to start several inches away from the stem to avoid accidentally slicing into the bulbs. Gently lift the soil and sift through it to find the bulbs.
Once they are out of the ground, shake them gently to remove large clumps of soil. Do not wash them with water, as excess moisture is the enemy of a stored bulb. If there is stubborn dirt, you can brush it off with your fingers once it has dried a bit.
The Curing Process: Preparing for Storage
Curing is a professional term for letting the outer skin of the bulb dry and harden. This step is vital because it creates a protective barrier against rot and disease during the months the bulb spends in storage.
Air Drying Your Bulbs
Place your cleaned bulbs in a single layer on a tray, a piece of cardboard, or a window screen. It is best to do this in a shaded, well-ventilated area like a porch or a garage. Avoid direct sunlight, as the heat can cook the bulbs or cause them to dry out too quickly.
Let the bulbs sit for about one week. During this time, the outer papery skin (called the tunic) will toughen up. You will also notice any remaining bits of foliage or roots become brittle. After the week is up, you can gently snap off the dried stems and roots. If the skin is loose or falling off, don't worry; as long as the bulb itself is firm, it is healthy.
Sorting and Selecting
Before you put your tulips into long-term storage, give them a quick inspection. You only want to store the healthiest bulbs to ensure success next spring.
- Firmness: The bulb should feel solid, similar to a fresh onion.
- Weight: It should feel heavy for its size. Lightweight bulbs have often dried out inside.
- Health: Discard any bulbs that show signs of mold, soft mushy spots, or deep cracks.
If you find small "bulblets" or offsets attached to the main bulb, you can gently pull them off. These small bulbs can be planted, though they may take a year or two of growth before they are large enough to produce a full-sized flower.
What to Do Next: Post-Harvest Checklist
- Wait for foliage to turn completely yellow before digging.
- Gently brush off soil; do not use water.
- Cure in a single layer in a shaded, airy spot for 7 days.
- Remove dried stems and roots once the bulb is dry.
- Discard any soft, moldy, or exceptionally light bulbs.
Creating the Perfect Storage Climate
Once your bulbs are cured and cleaned, they need a stable home until autumn. The environment you provide during the summer months determines whether the bulb will have enough energy to bloom again.
Temperature and Humidity
The ideal temperature for storing tulip bulbs over the summer is between 60°F and 65°F. This is slightly warmer than the "chilling" temperature they need in the winter, but cool enough to prevent them from drying out or trying to grow. A dry basement or a climate-controlled closet works well.
Humidity is a balancing act. If the air is too dry, the bulbs can shrivel into hard "pebbles" that won't grow. If the air is too humid, they will rot. Generally, the natural humidity in a typical home or basement is sufficient as long as there is some air movement. Avoid damp corners of a cellar where water might collect on the walls.
The Importance of Airflow
Never store tulip bulbs in sealed plastic bags or airtight plastic containers. Bulbs continue to "breathe" even when dormant, releasing small amounts of moisture and gases. In a sealed container, this moisture gets trapped and creates a breeding ground for mold.
The best storage containers are:
- Mesh bags: Old onion bags or nylon stockings are excellent because they allow air to reach every side of the bulb.
- Paper bags: Standard brown lunch bags are breathable and keep the bulbs dark. Just be sure not to crowd too many bulbs into one bag.
- Cardboard boxes: A shallow box lined with newspaper works well. You can even layer the bulbs with dry peat moss or sawdust to keep them from touching one another, which prevents the spread of rot if one bulb happens to go bad.
Darkness is Key
Tulip bulbs should be stored in the dark. Light can signal to the bulb that it is time to start growing, which can exhaust its energy reserves too early. If you are using mesh bags, hang them in a dark corner or place them inside a ventilated box to keep the light out.
Storing Bulbs in Warm Climates (Pre-Chilling)
If you live in a warm climate, such as USDA zones 8 through 10, your storage process involves an extra step called "pre-chilling." Tulips are native to regions with cold winters, and they require a period of consistent cold (usually 40°F to 45°F) for 10 to 14 weeks to develop a flower.
If your soil does not stay cold enough during the winter, you can store your bulbs in the refrigerator. Put them in a paper bag and place them in the crisper drawer. Again, ensure there are no apples or other ripening fruits nearby. Start this process in late September or October so they are ready to be planted in December or January when the ground is at its coolest. For more on this method, see our How to Store Tulip Bulbs in the Refrigerator.
Saving Forced Tulip Bulbs
It is very common to receive "forced" tulips in pots during the winter or early spring. While most people treat these as temporary indoor decorations, it is possible to save them, though it requires patience.
After the flowers fade, cut off the flower heads but leave the stems and leaves. Keep the pot in a sunny window and continue to water it until the leaves turn yellow. At that point, stop watering and let the soil dry out completely. You can then remove the bulbs from the pot, clean them, and store them using the same curing and storage methods mentioned above.
Keep in mind that forced bulbs have used a tremendous amount of energy to bloom out of season. They may take a year off from blooming once you plant them in the garden while they rebuild their strength. We recommend planting them in a "nursery bed" or a less prominent spot in your garden for the first year to see how they perform.
Routine Inspections During Storage
Don't just put your bulbs away and forget about them until fall. It is a good idea to check on your stored tulips about once a month. This small effort can save your entire collection.
When you check the bulbs, look for any that have become soft or developed fuzzy mold. If you find one bad bulb, remove it immediately so it doesn't infect the others. If the bulbs feel like they are becoming a bit too dry or shriveled, you can lightly mist the peat moss or the paper bag with a tiny amount of water, but be very careful not to overdo it. Usually, a well-cured bulb is hardy enough to last the summer without extra moisture.
How to Tell if a Stored Bulb is Still Good
When fall finally arrives and it is time to plant, you’ll want to do one final check. A healthy tulip bulb should still feel firm and heavy. If you squeeze it gently, it shouldn't give way or feel hollow.
If you see a small amount of blue or green surface mold, don't panic. This is often just "storage mold," which is common and usually harmless. You can gently wipe it off with a dry cloth. However, if the bulb is soft, black, or smells unpleasant, it should be discarded.
Planting Your Stored Bulbs
When the soil temperatures drop below 60°F in your area, it is time to bring your bulbs out of storage. At Longfield Gardens, we ship our bulbs to arrive at the ideal planting time for your specific zone, but if you have been storing your own, keep an eye on your local weather. For zone timing and regional planting windows, return to our Hardiness Zone Map.
Plant them about 6 to 8 inches deep, or roughly three times the height of the bulb. This depth helps protect them from temperature swings and hungry critters. For a closer look at bulb placement, see our How Deep Do You Plant Tulip Bulbs? Give them a good drink of water after planting to settle the soil and wake them up from their long summer nap.
Key Takeaway: The Ideal Storage Environment
- Temperature: 60-65°F (except for pre-chilling in warm zones).
- Container: Breathable mesh, paper bags, or cardboard boxes.
- Medium: Dry peat moss or sawdust can help keep bulbs separated.
- Location: A dark, dry, and well-ventilated spot like a basement.
- Safety: Keep away from ripening fruits and out of reach of pets.
Conclusion
Storing tulip bulbs is a simple way to take control of your garden’s future. Whether you are holding onto a new shipment for a few weeks or preserving a cherished variety over the summer, the goals are the same: keep them cool, dry, and breathing. By following the curing process and choosing the right containers, you protect the tiny flower waiting inside each bulb. Gardening is a journey of patience, and the care you provide during these quiet months is what makes the spring display so rewarding. If you want a closer look at our full assortment, browse the Fall-Planted Spring-Blooming Bulbs collection.
- Unpack new bulbs immediately to provide airflow.
- Cure dug-up bulbs for a week before putting them in bags.
- Use mesh or paper to prevent moisture buildup and rot.
- Check your bulbs monthly and discard any that turn soft.
Proper storage is the bridge between one beautiful season and the next. At Longfield Gardens, we are here to support you in creating a vibrant yard that brings you joy year after year. Learn more about our 100% Quality Guarantee.
"A little bit of care during the dormant season ensures your garden returns with all the color and energy you expect when spring finally arrives."
FAQ
Can I store tulip bulbs in the refrigerator?
Yes, you can store tulip bulbs in the refrigerator, especially if you live in a warm climate and need to "pre-chill" them. However, you must keep them in a paper bag and ensure they are away from ripening fruits like apples, which release gases that can kill the flower bud inside the bulb.
How long can tulip bulbs be stored before they go bad?
Tulip bulbs are usually best when planted within six months of being harvested or purchased. While they can sometimes survive a full year in storage if conditions are perfect, their vitality drops significantly over time, and they may not have enough energy left to bloom. If you need a quick planning shortcut, our Tulip Bulk Buys collection is a useful place to browse.
What should I do if my stored bulbs have a little mold on them?
Small amounts of surface mold (often blue or green) are common and usually not a problem. You can gently wipe the mold off with a dry paper towel. As long as the bulb is still firm and not mushy or black, it is healthy enough to plant.
Why did my stored tulip bulbs shrivel up?
Bulbs usually shrivel if the storage area is too hot or the humidity is extremely low. If a bulb feels very lightweight and "hollow," it has dried out completely and will not grow. To prevent this, keep bulbs in a cool spot (around 60°F) and avoid placing them near heat sources.
