How to plant tulips in pots, including a bulb lasagne
To plant tulips in pots, choose a container at least 30cm deep with drainage holes, fill the base with peat-free compost mixed with grit, and set the bulbs pointed end up, almost touching, about 10 to 15cm below the surface. Late October to November is the best time to do it. For an even longer display, try a bulb lasagne: layers of different bulbs stacked in one pot so they flower one after another from late winter into May.
Why grow tulips in pots?
Pots give tulips exactly what they love: sharp drainage, plenty of sun and a spot where you can enjoy them up close. They are perfect if you garden on heavy clay, if you only have a patio or balcony, or if you simply want a burst of colour by the back door. You can also be bolder with colour combinations in a pot, because if something does not work, you can change it next year.
What you need
A pot at least 30cm deep, ideally wider too. Terracotta, glazed or wooden containers all work, as long as there are drainage holes.
Peat-free compost, mixed with roughly a fifth to a quarter grit or fine bark for drainage. If you are new to it, my guide to starting peat-free gardening is a good place to begin.
Good, firm bulbs. Large, heavy bulbs with no soft patches give the best flowers.
Pot feet or a couple of bricks to lift the pot so water can drain freely over winter.
How to plant tulips in pots, step by step
1. Plant at the right time
Tulips are the last of the spring bulbs to go in. Wait until late October or November, when the weather has turned properly cool. Planting later helps keep the bulbs healthy and they still have plenty of time to root before spring.
2. Prepare the pot
Put the pot in its final position first if it is large, as a full container is heavy. Add a layer of compost so that the bulbs will sit with roughly 10 to 15cm of compost above their tips once the pot is filled. In a 30cm pot, that usually means a base layer of around 10cm.
3. Set out the bulbs
Place the bulbs pointed end up, close together but not quite touching. In pots you can be far more generous than in a border, and a densely planted pot looks so much better than a sparse one. As a rough guide, a 30cm pot will take around 15 to 20 standard tulip bulbs in a single layer.
4. Fill, firm and water
Cover the bulbs with compost, firm it gently with your hands and leave a couple of centimetres at the top for watering. Water well once, then let the rain do most of the work over winter. A top dressing of grit looks smart and helps discourage squirrels from digging.
Be generous. Tulips in pots look their best when the bulbs are planted almost shoulder to shoulder.
How to plant a bulb lasagne
A bulb lasagne is simply several layers of bulbs planted in the same pot, with the biggest and latest bulbs at the bottom and the smallest and earliest at the top. Each layer grows up through the ones above it, so a single pot can flower from late winter right through to May.
Use a deeper pot for a lasagne, ideally 40cm or more, and follow this order:
Bottom layer: add 5 to 10cm of compost, then plant your tulips. Late varieties such as 'Queen of Night' or 'Spring Green' are perfect here. Cover with about 5cm of compost.
Middle layer: plant daffodils or earlier tulips, nestling them between the tips of the bulbs below. Small, sturdy daffodils such as Narcissus 'Tête-à-tête' or 'Jetfire' work well. Cover with another 5cm of compost.
Top layer: finish with small bulbs such as crocus, Muscari or Iris reticulata, then top up with compost to just below the rim.
For a calm, elegant pot, try white crocus, then Narcissus 'Thalia', then Tulipa 'Spring Green'. For something warmer, go for purple crocus, golden daffodils and Tulipa 'Ballerina'. You will find more ideas in my guide to the best tulips for pots and borders.
Tulips in pots: checklist
Plant in late October or November.
Use a pot at least 30cm deep, or 40cm or more for a lasagne.
Mix peat-free compost with grit for good drainage.
Plant pointed end up, close together, 10 to 15cm deep.
Raise the pot on feet and keep compost just moist over winter.
Protect from squirrels with grit or a piece of wire mesh until shoots appear.
Aftercare through winter and spring
Stand the pot somewhere sheltered and sunny. Over winter the compost should stay just moist, so check it in dry spells, especially if the pot sits under the eaves where rain cannot reach. Once shoots appear in spring, water regularly as growth speeds up. If squirrels are a problem, a piece of chicken wire laid over the surface until the shoots emerge works well.
Once the flowers fade, snap off the seedheads so the plant puts its energy back into the bulb. You can then either plant the bulbs out into a sunny border to naturalise, or enjoy them as a one-season display and refresh the pot with new bulbs the following autumn. Both are perfectly good choices.
Quick answers
How deep should tulips be planted in pots?
Aim for about 10 to 15cm of compost above the tip of each bulb. That is roughly two to three times the height of the bulb, and it keeps the stems steady as they grow.
How many tulip bulbs fit in a pot?
A 30cm pot takes around 15 to 20 standard bulbs in a single layer, placed close together but not touching. Larger pots and lasagne plantings will take more.
Can I leave tulip bulbs in pots after flowering?
You can, but most tulips flower best in their first year in a pot. Many gardeners plant the old bulbs into the garden after flowering and start the pot afresh each autumn.
