El Ornithogalum dubium, also known as Ornithogallus, Belen star, chicken milk o bird's milkIs a perennial bulbous plant of South African origin that captivates with its striking flowers in shades of orange, white or yellow, depending on the variety.
This species, ideal for growing in pots or gardens, does not require complicated care, although it is important to understand its specific needs to enjoy its spectacular flowering and prolong its lifespan year after year.
Botanical characteristics of Ornithogalum dubium
Ornithogalum dubium belongs to the family of liliaceae and is a bulbous plant native to South AfricaIt grows between 10 and 30 cm in height depending on growing conditions.
Its The leaves are linear, fleshy and deep green., while its flowers form clusters at the top of the stem, with an upright and elegant bearing. Each flower possesses six petals with a star shape and can be colored white, deep orange or yellow, depending on the variety.
An interesting feature of this plant is that Its flowers open during the day and close at dusk. Also They do not emit fragrance, making it ideal for people sensitive to strong odors.
In addition to its beauty, it stands out for its adaptability to different climates and for needing little care, making it a good choice for both beginners and experienced gardeners.
Location and sun exposure
Ornithogalum dubium prefers a sunny exposureThe more light it receives, the more vigorous its flowering will be. However, in areas with particularly intense summers, it is recommended place it in semi-shade during the hottest hours to prevent the leaves from burning or the flowers from wilting prematurely.
During the winter, when the leaves begin to sprout, it can withstand low temperatures, but does not tolerate intense frostIn cold climates, it's best to protect bulbs or place them indoors in well-lit conditions until the risk of frost has passed.
The best substrate for Ornithogalum dubium
The substrate is key to the success of the cultivation. The Ornithogalum dubium needs a loose, well-drained, slightly acidic or neutral soilA compacted or waterlogged substrate will only lead to bulb rot.
An ideal mix could be:
- 2 parts universal or garden soil
- 1 part coarse sand or perlite to improve drainage
- 1 part peat or worm humus to provide organic matter
Another option is to use cactus mixes enriched with a little compost or organic fertilizer. The use of pumice stone or clay granules can also facilitate optimal drainage.
Irrigation recommendations
irrigation should be moderate but constant during its growth and flowering period, which normally runs from winter to spring (from January to March or April). It is essential Let the substrate dry slightly between waterings to avoid saturations.
A recommended guideline is:
- During growth and flowering: Water twice a week, approximately one glass of water per plant
- After flowering and dormant: gradually reduce watering until it is stopped completely
- Dormant bulbs: If kept in a pot, give a sip of water once a month to prevent them from drying out completely.
An important warning: Excess water is the main cause of bulb death. Waterlogging should always be avoided.
proper fertilization
During the active cycle, the Ornithogalum dubium can benefit from a light fertilization.
can be applied liquid fertilizer every 15 days from about a week before planting the bulbs until a month after they bloom. Seaweed extracts are an excellent option as a natural fertilizer, or a specific fertilizer for flowering plants diluted in irrigation water.
As regards newly purchased or newly transplanted specimens, Fertilization is not recommended during the first year, since its substrate usually comes enriched from the factory.
Flowering period and dormancy
Ornithogalum dubium typically flowers between late winter and early springOnce flowering is complete, the leaves will begin to yellow and wither, giving way to a resting period.
This latency period usually ranges from april to june, although it depends on the climate. During this time, you should gradually stop watering until the leaves have completely dried.
This process prepares the plant for its next flowering, facilitating its recovery and strengthening.
Multiplication and reproduction
Ornithogalum dubium multiplies easily by division of daughter bulbs, which grow next to the mother bulb. These small bulbs, known as suckers, can also be cultivated but can take two or more years to flower.
The ideal time to divide bulbs is when they are dug up after flowering, in spring or early summer. They should be replanted in the fall, when they begin to produce new leaves.
Another form of multiplication is by means of seeds, although it is a slower process and not recommended, since the species takes many years to flower from seed.
Plagues and diseases
One of the great advantages of Ornithogalum dubium is that It is not usually attacked by common pestsIts natural hardiness makes it a perfect choice for low-maintenance gardens.
The only common problem is bulb rot, caused by overwatering or poor drainage. In these cases, the tubers soften and deteriorate rapidly. The key is to monitor the substrate and the firmness of the bulb.
Indoor and outdoor cultivation
This plant can be grown both outdoors and indoors:
- In gardens: Ideal for rockeries, borders or flower beds in temperate climates
- In pots: It adapts perfectly, allowing you to move it according to the season or protect it from the cold.
- Indoors: It should be placed near a bright window. It can also be grown under artificial lights if the room is dark.
In climates with very cold winters, it is recommended remove the bulbs or keep them in pots indoors to prevent frost from damaging them.
Uses and ornamental value
Ornithogalum dubium is widely used as:
- Cut flower: Its flower clusters have good durability in vases
- Decoration of terraces or balconies: due to its compact size and color
- Composition in rock gardens: especially in Mediterranean areas
Its bright orange color is especially striking in spring, bringing liveliness and visual energy to any space.
Care for the orange and white Ornithogalum dubium
Care may vary slightly depending on color, although They share basic requirementsThe main difference lies in their behavior under different environmental conditions.
- Orange Ornithogalum dubium: This variety responds best to moderate sun exposure in summer, so it can benefit from some shade during peak hours.
- The white Ornithogalum dubium: It is more resistant to cold and adapts better to areas with constant semi-shade. Furthermore, the white flowers are more resistant to temperature increases.
Additional tips for successful cultivation
- Avoid moving the plant once it begins to sprout., since the sprouts are sensitive to changes in light and temperature
- If you are going to use artificial lighting, make sure they are full spectrum lamps (LED type) and place the plant at an appropriate distance
- You can't prune the green leaves. until they have completely withered, as they accumulate essential nutrients for the next cycle
- Store bulbs in a paper bag or cardboard box with dry substrate or vermiculite if you decide to remove them from the soil
Ornithogalum dubium is a gem in the world of bulbs, and with proper care, you'll have a healthy, vigorous plant with spectacular blooms every season. Its beauty, ease of cultivation, and disease resistance make it a perfect choice for both indoor and outdoor use, providing color and elegance without requiring much dedication.