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How to create a bulb lasagne for months 
of colour

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Key takeaways:

  • Bulb lasagne planting creates a succession of colour from late winter through late spring
  • Layer bulbs by flowering time, starting with the latest at the bottom and the earliest at the top
  • One container can deliver 3-4 months of continuous blooms with the right bulb selection

What is Bulb Lasagne planting?

Bulb lasagne, also known as layered bulb planting or layering spring bulbs, is a great way to use your spring bulbs and increase their flowering potential all season.  Learning how to plant a bulb lasagne is simpler than it sounds. Put simply, you plant different spring-flowering bulbs at varying depths in the same pot to create a rolling display that bridges the gap between late winter and late spring. This method of pot-layering bulbs is popular because spring bulbs bloom at different times, delivering a seamless succession of colour from one carefully orchestrated planting.

The perfect Bulb Lasagne recipe

When learning how to plant a bulb lasagne, the key principle is simple: plant in reverse order of flowering time, with the latest bloomers at the bottom and the earliest at the top, creating a display of successive flowering bulbs.

 

Bottom layer (Early to Mid Spring): Narcissi (Daffodils): Plant 15-20cm deep. Daffodils form the foundation, providing structure and reliable early-to-mid spring colour.

 

Middle-Lower layer (Mid to Late Spring): Tulips: Plant 12-15cm deep. Tulips are usually one of the last spring bulbs to emerge and grow upward through earlier layers, adding height and vibrant impact.

 

Top layer (Late Winter to Early Spring): Crocus, Dwarf Iris, or Snowdrops: Plant 5-7cm deep. Small early-flowering bulbs like Crocus and Snowdrop provide the first splash of colour when winter finally loosens its grip as they push their heads through the soil.

 

Surface planting (immediate colour): Pot toppers: Pansies, Wallflowers, or Polyanthus. These seasonal bedding plants brighten the container immediately while bulbs remain dormant, ensuring the pot remains attractive through autumn and winter.

Step-by-Step instructions for your bulb lasagne

Step 1: Prepare your container:

Poor drainage is the primary cause of bulb rot in container plantings. Whether you choose terracotta or plastic containers, ensure they have adequate drainage holes. Place a 3-5cm layer of crocks at the bottom, then add peat-free compost mixed with horticultural grit. This prevents waterlogging while maintaining structure within your pot.

Step 2: Plant your bottom layer (Narcissi)

Position your largest bulbs on the prepared compost. The pointed end (the crown of the bulb) must face upward, with the flatter basal plate facing downward. Space the bulbs 2-3cm apart, but make sure they do not touch each other or the sides of the pot. This spacing allows room for root development and prevents overcrowding as bulbs grow. Cover with compost, then add another 3-4cm layer.

 Step 3: Add your middle-lower Layer (Tulips)

Plant your tulip bulbs 12-15cm from the pot surface, following the planting depth instructions. These taller spring-flowering bulbs will grow upward through the earlier layers without difficulty. Cover with another layer of grit-rich compost.

Pro-tip: You could lay chicken wire over this layer before adding more compost to protect valuable tulip bulbs from squirrel damage.

Step 4: Add your top layer (Crocus, Dwarf Iris, or Snowdrops)

Plant your smallest, earliest-flowering bulbs, such as snowdrops and crocuses, 5-7cm from the surface. These earlier best bulbs for pots can be planted more densely, and you can space them 1-2cm apart for maximum impact. Cover with compost, leaving 2-3cm of space at the top.

Step 5: Add pot toppers for immediate impact

Plant bedding plants like pansies, wallflowers, or polyanthus in the remaining space for instant colour through autumn and winter while bulbs remain dormant. Their shallow roots won't disturb the bulb layers beneath.

Bulb Lasagne aftercare

Watering

Water thoroughly after planting to settle compost and eliminate air pockets in your soil to give your bulb lasagne the best start. During autumn and winter, water sparingly and use your finger to check when the top 2-3cm feels completely dry. Once shoots emerge in late winter, increase watering and feeding frequency as containers dry out a lot quicker than ground plants. During flowering, keep your compost consistently moist but never waterlogged.

Positioning

Place your bulb lasagne container in a spot that receives at least 4-6 hours of sunlight daily. Most spring-flowering bulbs require good light for strong stems and vibrant colours. Protect containers from harsh winter winds and during cold periods by moving them against a sheltered wall or wrapping pots with horticultural fleece.
Pro-tip: If grouping multiple pots, elevate them on pot feet and space them apart to allow air circulation and to prevent moisture buildup.

How to care for your Bulb Lasagne

Deadhead spent flowers in your bulb lasagne immediately, but leave all foliage intact until it turns completely yellow.  Don’t cut down straight away; wait for the leaves to yellow, as this is when the leaves replenish the bulb's energy reserves for next year. Continue watering and apply liquid fertiliser every two weeks until foliage dies back. Bulbs can remain in the container for 2-3 years before they will need to be divided.

Common mistakes and how to avoid them

Bulb Rot: Without proper drainage, water accumulates, causing the bulbs to rot. Always use containers with multiple drainage holes, add a crock layer, and incorporate horticultural grit into your compost.

 

Shallow planting: Bulbs planted too close to the surface produce weak, floppy stems. Follow depth guidelines carefully. A general rule is to plant bulbs at a depth three times their own height.


Overcrowding: We recommend maintaining 2-3cm spacing within each layer with compost; overcrowded bulbs compete for nutrients and water, resulting in smaller flowers.

Removing foliage too early: Cutting back leaves before they have fully yellowed prevents the bulb from storing essential energy. While dying foliage may look untidy, resist the urge to tidy it too soon!

FAQs

Can I plant bulbs in layers in the ground as well as in pots?

Yes, the technique for planting a bulb lasagne works equally well in borders. Containers offer the advantage of portability and suit small spaces, making them the most popular for planting a bulb lasagne.

 

How long will a bulb lasagne container last?

With proper aftercare, the same bulb lasagne performs well for 2-3 years. After this, divide congested bulbs, refresh the compost, and replant using the same process.

 

What's the best time to plant a bulb lasagne?

The ideal time for how to plant a bulb lasagne is between September and late November for spring flowering. This gives bulbs time to establish roots before winter dormancy.

 

Why didn't my bulbs flower?

Common causes include planting too late, poor drainage causing rot, removing foliage too early the previous year, or overcrowded bulbs. Very mild winters can also prevent adequate chilling for some varieties.

 

Ready to create your own spectacular bulb lasagne? Browse Fothergill’s complete range of spring-flowering bulbs, specially selected container varieties, and peat-free compost to start building your succession of colour today.

Watch the full tutorial here

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We’d love to see your bulb lasagnes, so please share them with us on our social media channels using the hashtag #fothergills. Don’t forget to check out our online shop for bulbs, compost and tools to help you bring your garden to life.  

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Related Articles

By Pim Dickson
Fothergill's Blog
Sep 16, 2024

Spring flowering bulbs like daffodils, tulips, and crocuses are some of the most cherished sights in the garden, creating the perfect welcome to spring and marking the return of warmth and colour. But once their vibrant blooms fade, many are left wondering what to do with bulbs after flowering to ensure they return year after year.

Proper care after flowering can help your bulbs thrive so they come back with a stunning show of flowers the following season. Here’s everything you need to know about caring for your spring bulbs after flowering so you can keep your garden beautiful year-round.

Why It’s Important to Care for Your Bulbs After Flowering

Taking care of your spring bulbs after flowering is key to ensuring their longevity and future blooms. After flowering, bulbs will need time to recharge and store energy for the following season’s round of growth. By following the right practices, you can enhance your bulbs' health for a spectacular bloom next spring. Not only will this help you to maintain a healthy and gorgeous garden, but it’ll also save you the cost of replacing bulbs every year.

What to Do with Bulbs After Flowering

Once your spring bulbs have finished flowering, it’s time to think about how to care for them. Follow these simple steps to ensure your bulbs remain strong and healthy for next season.

Let the foliage die back naturally

After the flowers have faded, it’s essential to let the foliage die back naturally. Their leaves should be left in place, ideally for around 6 weeks after flowering, so they can carry on feeding the bulbs and recharge the energy store for next year. 

Don’t be tempted to smarten up the leaves by tying them up in bunches, as this will severely decrease their ability to photosynthesise and feed the bulbs.

Cutting back and deadheading

Deadheading, or removing the faded flowers, is important for a tidy garden and to prevent the plant from wasting energy on seed production. Snip off the flower heads as they fade, but avoid cutting the leaves. Only trim the foliage once it has fully yellowed. 

When to stop watering

As your spring bulbs enter their dormant phase after flowering, you can reduce watering. Once the leaves begin to yellow, it’s time to ease up on watering. Bulbs no longer need as much moisture at this stage, and overwatering can lead to rot. Keep the soil lightly moist, but allow it to dry out gradually to let the bulbs enter their resting phase.

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Should You Lift Spring Bulbs After Flowering?

While it may be tempting to clear away the bulb beds after the flowers have passed, it's crucial to consider whether or not to lift your bulbs. It’ll depend on the type of bulb you want to lift and the climate you’re in:

  • Tulips will benefit from being lifted and given a dry dormant period in summer for the bulbs to ripen and rest. Lift them carefully, dry them out, and store them in a cool, dry place until autumn to avoid rot.
  • Daffodils prefer to be left alone, and moving them needs to be done with care; otherwise, they may miss a year’s flowering until they have established themselves well again. An alternative to lifting them is to grow them in large containers that can be planted over or moved out of the way once the displays are over.

The best advice for lifting any spring bulbs is to lift late and replant early.

How to Lift and Store Spring Bulbs

Any bulb can be lifted carefully to minimise damage to the roots and the leaves, then replanted into pots of compost and placed out of the way in a partially shaded spot to grow on. Initially, planting them in a bulb planting basket makes the process of lifting them quick and easy. 

  1. Lift the bulbs carefully using a spade or garden fork, taking care not to damage the roots.
  2. Separate the bulbs if clumps are overcrowded or congested. This gives them more space to grow and thrive.
  3. Clean off any excess soil and allow the bulbs to dry out in a cool, dry place for several weeks.
  4. Store the bulbs in a well-ventilated area, such as a paper bag or box. Check them periodically to ensure they’re not rotting.

Replanting Spring Bulbs

Once the leaves have yellowed, the bulbs can be left to dry out and go dormant to give them a rest. Giving bulbs a dry dormant period in summer will protect them from rot and help ripen the bulbs for next year.

Afterwards, they can be planted in the autumn to flower again next spring. A good indicator of when to plant out bulbs is when the soil temperature has cooled to at least 13°C; that’s usually when night temperatures are regularly getting down to around 5°C. This will encourage bulbs to make strong roots rather than wasting energy producing top growth. Using a purpose-made bulb planter will make the process quick and easy. Long-handled bulb planters are great if you have a bad back or have a large area to plant.

Be sure to keep the compost moist, as overwatering may cause the bulbs to rot. If in doubt, keep the compost on the dry side rather than wet. Plants can be given a boost at this stage with a top dressing of flower bulb fertiliser or sulphate of potash. Don’t be tempted to put fertiliser in the planting hole, as this may cause root burn and damage the bulbs.

Turn Your Spring Bulbs to Blossoming Blooms with Fothergill’s

Caring for your spring bulbs after flowering ensures they’ll return strong and ready to bloom the following season. By following the proper post-bloom care techniques—such as allowing the foliage to die back, deadheading, reducing watering, and lifting or replanting as needed—you can enjoy a stunning spring garden year after year.

Ready to plant fresh bulbs for next season’s show? Explore Fothergill’s range of spring flowering bulbs for all your gardening needs. With a variety of anemones, lilies, and crocuses, we have everything you need to create a beautiful garden that thrives.

By Pim Dickson
Fothergill's Blog
Apr 30, 2024
Tulips are a stunning way to liven up your living space and bring the beauty of the outdoors indoors. But what should you do when even your tulips seem to be lacking that life that you’re looking for?

As beautiful as they are, these flower plants are also known for their likelihood of drooping - making your floral arrangement appear limp and lacklustre. But worry not! You can still enjoy decorating your living room, dining room or kitchen with tulips from your cut flower garden without them slouching like a fed-up teenager.

So, let’s get to it. Without further ado, here is how to stop tulips drooping in your vase!

Why Are My Tulips Droopy?

If your tulips look like they’re in a bad mood, it’s probably because they are! We’ve all experienced the dreaded feeling of being ‘hangry,’ and so have your tulips. So, if you’ve come home to find your once full-of-life tulips drooping, the chances are that they’re dehydrated!

So, the quickest way to maintain the health of your tulips is to make sure that they’re well-fed and in view of sunlight! But what are some other tips and tricks for how to stop tulips drooping?

Keep Them Watered

Tulips are a relatively low-maintenance plant, but that’s no excuse to neglect them! They may be independent, but you’ll find that your tulips really appreciate fresh, cold water. Fresh water works to reduce any bacterial growth, whilst cold water keeps the stems nice and firm.

Cut Stems at an Angle

In order to maximise the amount of water getting to your tulips, cut your stems at an angle to increase the surface area of absorption in the stems. If you notice that your tulips begin to droop again, don’t be afraid to give them a little trim, taking off around an inch and maintaining that 45-degree angle in the stem.

Make Them at Home in their Vase

Choosing the right vase is important! In order to keep your tulips nice and firm, home them in a straight-sided vase to maintain their shape. Like all flowers, tulips require sunlight to stay healthy. You might have noticed your plants in the past reaching for sunny areas of the garden or windowsill! Be sure to rotate your vase regularly, ensuring that all sides of the plant have access to the sun. This way, your tulip plants should maintain their original shape and continue to reach upwards.

The Newspaper Method

Read all about it, read all about it! One of our favourite tips for how to stop tulips drooping is hot off the press. Before putting your tulips into a vase, we recommend wrapping them in newspaper and allowing them to sit in water for a few hours. The paper helps to enforce a shape over your tulips, holding them upright as they hydrate themselves in the vase.

The Pin Method

I like to think of this method as the face-lift of the drooping tulip. If your tulips begin to droop, a nifty tip is to put a pin through the tulip’s stem and into the head of the plant to quite literally prop your flowers up. This, combined with regular maintenance, can give your flowers an undeniably vibrant and lively look.

Shop Tulips at Mr Fothergill’s

What are you waiting for? Your growing journey starts right here at Mr Fothergill’s! Shop our fantastic range of tulip flower bulbs and tubers today, and let us help you bring the outdoors indoors!

If you have any further questions about how to stop tulips drooping or have any curiosities about any of our other products, don’t hesitate to contact us or take a deeper dive into our gardening blog!

By Pim Dickson
Fothergill's Blog
Sep 09, 2024