| Life form | Grassy onion |
| Family | Amarillidaceae |
| Origin | South Africa, tropical America |
| Ease of cultivation | Easy with small difficulties |
| The size | The height of 30-80 cm in length, the crest of Moore – up to 1 m, the flower stem can have a height of up to 1 m. In older specimens, the bulb can reach 20-25 cm in diameter. |
| Growth rate | Average |
| Lifespan | With proper care the bulb can exist for many years. |
| Temperature | In the summer: 68-77 ° F in winter (rest period) – 50-59 ° F. Suitable for growing in cool lobbies. |
| Humidity | Average, in winter in dry air, spraying is necessary. |
| Lighting | Illuminated place, bright diffused light 3-4 hours a day. Western, eastern, southern window with shading approaches. Can grow under artificial lighting. |
| The soil | Fertile, loose soil is suitable. You can take: 3 parts of sod land, 3 parts of leaf land, 1 part of coarse sand or perlite. However, the plant is tolerant enough to other types of soil.Good drainage is required. Always use a pot with a hole. |
| Watering | To water abundantly with lukewarm water, the soil should not dry out between watering, but the plant should not also stand in water. By the autumn, watering is reduced, but complete drying of the soil is prevented. In winter, watering should be such that the substrate does not dry completely. |
| Fertilizer | Feed with a liquid fertilizer with a high content of potassium once every 3-4 weeks from the moment of the beginning of growth. |
| Reproduction | Separation of bulb-children, which are planted in small pots in a mixture of sand and peat, making a hole about 2.5 cm. Place the pot on non-directional light. After germination, transplant into permanent soil. Put in a more lit place. The first time to water moderately. The size of the pot is increased as the bulb grows. Such a plant blooms for 2-3 years.You can propagate with fresh seeds, which are germinated in peat-sand mixture one by one in a pot. A plant grown from seeds blooms in 4-5 years. |
| Bloom | Blossoms in August-September. White, tender pink, funnel-shaped, weakly fragrant flowers on a long peduncle. If you move the rest period of the crinum at the end of summer – the beginning of autumn, you can achieve the flowering of the plant in winter. Can be grown on hydroponics. Removal of faded flowers prolongs flowering. |
| Transfer | A large bulb is transplanted every 2-3 years, in March, before the onset of growth. Better bloom in close pots with a diameter of 25-30 cm. Bulb is buried in half or 2/3 in the soil. You can replace only the top layer of the soil every year. |
| Features of care | In the summer, the crinum can be grown in the garden, planting bulbs in the ground to a depth of 25-30 cm in March-April. (After the flowering they will have to be excavated from the ground). The plant does not like drafts. To form a flower bud, the plant needs a rest period. Crinum for the winter do not usually shed their leaves, but their number is slightly reduced, the plant goes into dormancy. Without a period of rest, the plant will not bloom. |
| Difficulties | It is infested with pests quite rarely. Possible thrips and mealybugs. Fight with insecticides. The plant can be affected by a daffodil fly (the bulb rotes), a red burn (red longitudinal spots on the leaves) may occur. The plant does not blossom due to lack of a rest period, either because of insufficient nutrition or lack of light. Also, insufficient or excessive watering can cause a lack of flowering. Foliar lethargy can arise from both insufficient and excessive watering. |
| Air cleaning | – |
| Toxicity | – |
