The technique known as bulb lasagne, popular with the Dutch, involves layering bulbs upon each other to create rich and vibrant spring pot displays. The process starts by placing the largest and latest flowering bulbs deepest, then gradually moving towards smaller and earlier flowering ones at the top. This method allows emergent shoots from lower layers to bend around any obstacles above them.
Correct spacing is vital for this approach, with bulbs ideally placed 1 to 1.5 inches apart. The first layer can be buried 11-12 inches deep, followed by a few inches of potting compost on top, ready for the next layer of bulbs. While a two-layered bulb lasagne is common, it’s possible to extend this to three layers and include a variety of bulbs beyond tulips, such as crocus, narcissus, or hyacinths. An example of a three-layered approach involves using the tulips for the deepest layer, Hyacinths for the middle layer, and Miniature Narcissus for the top layer.
How to Plant a Bulb Lasagne (Step-by-Step)
Bulb lasagne planting is a simple way to create a full, long-lasting spring display by layering bulbs in one pot.
Step 1: Prepare your pot
- Choose a deep container with drainage holes
- Add a layer of compost to the bottom
Step 2: Plant the bottom layer
- Place your largest, latest-flowering bulbs (e.g. tulips)
- Position them about 11–12 inches (28–30 cm) deep
- Space bulbs 1–1.5 inches (2.5–4 cm) apart
Step 3: Add compost
- Cover the bulbs with 2–3 inches (5–8 cm) of compost
Step 4: Plant the middle layer
- Add medium-sized bulbs (e.g. hyacinths or narcissus)
- Space them evenly 1–1.5 inches (2.5–4 cm apart)
- Cover with another 2–3 inches (5–8 cm) of compost
Step 5: Plant the top layer
- Add small, early-flowering bulbs (e.g. crocus or miniature narcissus)
- Cover with compost, leaving about 1 inch (2–3 cm) space at the top for watering
Step 6: Water and place
- Water thoroughly after planting
- Place the container in a cool outdoor spot
What happens next
- Top layer flowers first, followed by middle, then bottom
- Shoots from lower bulbs will grow around those above them naturally
This method gives you a full, layered display with continuous colour throughout spring.
