Le forçage des bulbes à l'intérieur

Forcing bulbs indoors


Flower bulbs can brighten up the interior of our homes in winter, not just our flowerbeds in spring. The process is called forcing. Don't worry: it's not about torturing plants, but rather about getting them to flower earlier.


Tulips, daffodils, hyacinths, crocuses, squills, grape hyacinths.

Early varieties are more successful: early tulips, narcissus, daffodil and hyacinth are the most used.


For flowering spread over time, plant at monthly intervals from the end of September to the beginning of December.


Preparing the bulbs:

Soak the bulbs for 12 hours in a bucket filled with lukewarm water and soluble fertilizer.


Use pots perforated at the base for good drainage.

Use a light potting mix.

Fill the jars halfway. Place the bulbs side by side and cover with potting soil.

Water copiously.

Cold treatment:

Place the pots in a cool place, at a temperature between 3 and 11°C (37-52°F), and in the shade for at least 12 weeks. Or place in the fridge for 2 and a half to 3 months. Or bury the pots outside, in a trench.

Check from time to time: water if the top of the soil is dry.

When the bulbs are 1 inch (2.50 cm) tall, place in a sunny window where they will receive no more than 2 hours of sunlight per day and the night is cool. Otherwise, refrigerate for another week.

There are also bulbs already cold-treated: it only takes 3 to 4 weeks before flowering.


Buy amaryllis bulbs in November or December.

Plant the bulb closely, a third of the depth of the pot. Water generously and place near a sunny window. Flowering planned for Christmas.

In June, plant outside in the ground in a partially shaded area. Dig up in mid-September, clean, leave to dry for two months in a dark, dry place. Pot up on November 15 for flowering at Christmas.


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