It’s not good for bulbs. The Precooling or Rooting Process Place the Hyacinth vases or potted Hyacinths in a dark refrigerator or cooling unit set at a consistent 40°F to 48°F with moderate ventilation for 8 to 16 weeks. Darkness is a must.

February 12, 2026 - Another option is to chill the bulbs (planted or unplanted) in a refrigerator. Just make sure not to store any fruit in there at the same time. The ethylene gas given off by ripening fruit will damage the embryonic flowers inside the bulbs.

Possible storage sites include a refrigerator, root cellar or trench in the garden. (When using the refrigerator for storage, place the potted bulbs in a plastic bag if the refrigerator contains apples or other ripening fruit.

June 10, 2025 - Pre-cooled hyacinth bulbs may be ... or mail-order nurseries. If you cannot find pre-chilled bulbs, you can chill them yourself in the refrigerator....

January 18, 2026 - To replicate this, hyacinth bulbs for forcing will need 12-14 weeks of temperatures between 35°F-45°F (2-7°C). Chill your bulbs before planting, by placing them in a paper bag in the refrigerator crisper drawer.

March 3, 2025 - During this cooling period, the bulbs will send roots down into the water and form a pale green sprout. If you are using a refrigerator or walk in cooler, ensure that the bulb trays or vases are on a level surface and do not let them dry out.

Simply put them in a paper bag in the refrigerator for 4-6 weeks. Bring them out and put them in specially designed forcing vases filled with water just up to the base of the bulb.

January 28, 2026 - Before starting the process of forcing hyacinth bulbs, make sure they are chilled. Pre-chilled bulbs are usually available, but you can also chill them yourself. Store the bulbs in your refrigerator’s crisper drawer, away from produce, for ...

Though experts say hyacinths won’t bloom indoors unless they root at 48° F or below for 8-16 weeks, our customers have taught us that this ain’t necessarily so. Try this: Store bulbs of ‘Lady Derby’ dry in a paper bag in your refrigerator for 8-10 weeks. Then put them on water as you would for regular forcing (see above), anywhere in indirect light.

October 28, 2016 - In colder areas (zones 3-6), you ... garage or porch, or a greenhouse or cold frame. Another option is to chill the bulbs in a refrigerator....

September 11, 2023 - During the chilling period, place the bulbs in a paper bag to prevent sunlight from hitting them. Store them in a cool place that stays 35-45 F. A refrigerator is a great option, but do not store next to fruit.

March 2, 2023 - With forcing indoors, you can mimic mother nature by chilling your bulbs indoors in your refrigerator, basement or garage. Typically hyacinth bulbs will need to be chilled for a period of 12-15 weeks and will bloom roughly 2-3 weeks after planting.

Indoor forcing usually takes another three to four weeks. If you are preparing your own bulbs, simply place them in a refrigerator drawer for at least five weeks. Keep them away from food produce, and keep checking on them. They are ready when they start to sprout.

November 12, 2022 - To force hyacinths, purchase the bulbs in the fall, place the bulbs in a paper bag, and put in the fridge. After about 10 weeks, take the bulbs out and plant in soil or water. Last year, at this time in November, I put three Blue Pearls in a ...

January 14, 2025 - If you’re not sure what to look for, check the packaging for words like “prepared” or “pre-chilled.” · These bulbs are designed to bloom without needing months of refrigeration, making them perfect for indoor forcing.

November 17, 2018 - Cover loosely with soil, leaving the tips of the bulbs exposed. Water thoroughly and move the container to a cool, dark location (40˚F), such as a basement, garage or refrigerator.

Tulips, hyacinths, crocus, daffodils and many hardy spring bulbs shipped from warm regions sometimes need 10–14 weeks of chilling before forcing indoors. Only follow refrigeration instructions from the supplier or a reputable forcing protocol.

November 25, 2020 - After 13 weeks of cold, you can start to “force” your bulbs. Or you can wait longer if you want. When they’ve reached the “ready to bloom” stage, bulbs stop growing and wait for the arrival of spring.