How to Grow Hyacinth Flowers in Water

Growing hyacinth flowers in water, also known as hydroponic gardening, is a visually stunning method that enhances your home with vibrant colors and a pleasant fragrance. Although the process may take some time, this technique can allow your hyacinth flowers to last for several weeks. The bulbs will bloom into large, aromatic flowers in various colors, ranging from pale pink to deep purple. The hydroponic container keeps the bulb above the water’s surface while allowing the roots to access the necessary space and water for healthy growth.

Purchase hyacinth bulbs from a florist or garden store. In the U.S., hyacinth bulbs are typically sold in sets of 3, and you may receive a discount for purchasing multiple sets. A set of unchilled bulbs generally costs $5-$7, while a set of pre-chilled bulbs is usually priced between $12-$15.

Chill the bulbs before planting. Hyacinth bulbs need a chilling period of 12-14 weeks for their roots to develop fully; without this, the plant won't grow well. This step is crucial if you cannot find pre-chilled bulbs.

• Store the bulbs in a dark place with temperatures between 1.7 – 4.5°C. Suitable locations include refrigerators, storage rooms, garages, or even moist sand.
• Be cautious when chilling the bulbs in the fridge. Certain fruits release ethylene gas, which can cause the hyacinth bulbs to rot and/or become stunted. Do not store fruits in the fridge during the chilling process.
• Do not place the bulbs in freezing temperatures, as they may get damaged.
• Wear gloves when handling the bulbs, as hyacinth bulbs can cause skin irritation.

Purchase pre-chilled bulbs to speed up the planting process. Almost every florist and garden store sells pre-chilled hyacinth bulbs. Be sure to ask for these, as they can help the plant grow up to 8-12 weeks faster.

• Pre-chilled bulbs may be more expensive than non-chilled ones, but the time they save is well worth the cost.

Find a suitable container for planting the hyacinth bulb. Hydroponic containers are ideal for growing bulbs in water; they are designed with a narrow neck to keep the bulb above the water's surface while the bulb's roots hang down into the water, providing ample space for growth and ensuring the flowers bloom fully without toppling the container over.

Fill the container with water. Add enough water to the container so that it nearly touches the bottom of the bulb. The bulb should be about 0.5 cm above the water level to prevent it from rotting due to constant submersion. Hydroponic containers are the best option because they have a constricted neck that keeps the bulb snugly above the water.

• You can also add 1 tablespoon (15 ml) of aquarium charcoal to the water to keep it clean and clear.

Place the bulb in the container. Position the bulb so that the top is just above the neck of the container, with the roots hanging below. Remember, the bulb should be just above the water's surface but not in direct contact with the water. The plant's roots will gradually grow down into the container, and the bulb will begin to bloom.

• If you want the plant to bloom again the following year, it’s better to plant it in soil rather than water. A hydroponically grown hyacinth bulb will not flower the next year, but one planted in soil might.

Choose a cool and dark place for the bulb. Place the container in a cool, dark area (4.5 – 13°C), such as a garage or refrigerator. Keep it cold for about 4 weeks, or until the roots grow in the water container and the bulb's top begins to sprout.

• As mentioned earlier, avoid storing hyacinth bulbs with fruits in the fridge. Ethylene gas from fruits can damage the bulbs.
• Change the water in the container twice a week. Clean water will help the hyacinth flowers bloom fully and beautifully.

Move the bulb to a warmer and brighter place when the plant starts to bloom. The hyacinth plant should be moved to a warmer and brighter location (10 – 16°C) when it's time. You will know when it’s time when the plant’s leaves reach about 5 cm in height and the roots touch the bottom of the container. Keep the bulb in this position for about a week, or until the plant’s shoots turn green.

Move the bulb to a brighter location for full blooming. Transfer the plant to a warmer area (around 18°C) to allow it to bloom. Hyacinths will lean towards sunlight, so you need to rotate the container daily to prevent the plant from leaning to one side. After about 2 weeks, the flowers will bloom and emit a lovely fragrance for 2 weeks before beginning to fade.

• Even though the plant should be moved to a brighter spot, avoid direct sunlight.
• To help the flowers last longer, you can place the plant in the fridge at night.
• Enjoy the fragrance of the flowers. When the hyacinths bloom, they will release a delightful scent.
• Dispose of the bulb when the plant has died. The water-grown bulb will have used up all its nutrients, and it won’t be strong enough to bloom again. You'll need to buy a new bulb for replanting.