P.O. Box 17
2180 AA Hillegom
The Netherlands
P: +31 (0)252 520 350
F: +31 (0)252 523 430


C. Steenvoorden B.V., situated in the old traditional centre of flower bulbs, was founded by Mr. C.G.P.M. Steenvoorden. By keeping to traditional principles such as quality and service C. Steenvoorden B.V. has developed into one of the largest suppliers of flower bulbs in the world. Its main products are Lilium, Gladiolus, Tulips and Iris, but all other kind of flower bulbs can be supplied as well.One of the main tasks of C. Steenvoorden B.V. is programming of flower bulb production for growers, importers and seed companies. With its huge warehouse containing several modern climate-controlled rooms and various other facilities, the company is able to keep complete control over all the bulbs, never losing sight of quality. Besides an high quality bulb, “after sales service” is considered to be very important. The sales managers visit the customers regularly and support them in every possible way.The company also maintains excellent contacts with private and government research establishments in order to improve and develop new varieties and new methods of production. This way C. Steenvoorden B.V. stays well informed and is always ready to give up-to-date answers to any question in the field of flower bulbs.


› Show all LILIUM POT ›

Asiatics are characterized by a wide spectrum of color, with many bright colors. Asiatics in general have a large number of buds. They only have a short growing period requiring about 90 days before they flower. The flowers are up facing, rather small, open flat and are usually one above the other, each connected to the main stem. They are very light sensitive and therefore very difficult to grow in the wintertime and are hardly fragrant at all.


LA's broaden the color spectrum compared to the Asiatics and Longiflorums. They offer larger flowers compared to the Asiatics. These are more compact distributed, either originating from one point from the main branch or not. They are less light sensitive and therefore more suitable for the winter. The bud count however is lower than the Asiatics. The buds usually flower in a slightly trumpet shaped way and can be either sideward or (semi) up facing. They have a growing period slightly longer than Asiatics. They are slightly fragrant or not at all.


Nowadays Longiflorum exist in several colors and no longer only in white. They have large, long trumpet shaped flowers which face sideward. Although varieties with up facing flowers are becoming available as you can see in our exclusive varieties like Bright Tower® and White Tower®. Compared to the other lily groups they have a longer growing period of 110 days. They flower with few buds and the buds originate from one single point on the main stem. They are less light sensitive and of all lily types the easiest to grow in wintertime, although they do need slightly higher temperatures. Longiflorum are fragrant lilies with a very good preservation time after harvesting.


Orientals, have very large flowers and can bloom sideward and upright. The flowers open, like Asiatics, quite flat with the tips of the petals sometimes facing backwards. The color spectrum is limited to white and pink. Extremely dark pink varieties are sometimes sold as red, real red however is not known in the Orientals. There are also a number of so called “gold ribbon” lilies which have a broad yellow line across the grain of the petals. Another characteristic is that they usually have very strong fragrance. They have the longest growing period, approximately 120 days. They are like the longiflorum, with a low light sensitivity and therefore well suited for the winter. However, they need higher temperatures than the other groups.


OT`s arises from the cross between Orientals and Aurelian`s. Aurelian`s is the name given to all crosses between the species L. Henryi (Section Trumpet Lilies) and all other Trumpet Lilies (except L. longiflorum). OT's have the large flowers and strong scent of Orientals. The color spectrum is more extended at this time mainly yellow cultivars. The flowers can be upright or sideward. Some are more cup-shaped, while others flourish approximately flat.

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The tulip is without doubt the most famous flower bulb. Tulips are grown on a large scale, particularly in the Netherlands where their history goes back to the late 16th century. At that time the first tulip grew and flourished in Leiden. Now, more than 400 years later, billions of tulips are being cultivated in Holland, of which the majority is exported. This applies not only to the dry bulb sales but also to the cut flower production of tulips. These flowers are generally available year round. But most tulip bulbs are sold between November and May.

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Gladiolus are one of the four most popular summer flowering flower bulbs. People use them in the garden, but also as cut flowers in the summer months. The gladiolus we know are all hybrids and are in cultivation since 1841. It is hard to identify an original variety, but botanist believe there are about 300 gladiolus varieties. Gladiolus are easy to crossbreed which results in new varieties each year to replace the older and less popular varieties. Many large flowering varieties have been cultivated after 1940 in Great Britain and Holland. The butterfly types were introduced in 1951 and the last 20 years the American varieties have become increasingly popular.

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The hyacinth, with its natural, seductive fragrance and vivid colors guarantees a happy spring feeling. Hyacinths thank their association to the spring due to the fact that they belong to the earliest flowering fragrant plants. There are about twenty-five different hyacinths varieties, and they are categorized by color. There are blue, purple, red, pink, yellow, orange and white varieties. The flowers of about two centimetres form dense flower clusters of fifteen to twenty centimetres in length. They flower relatively long, up to three weeks. The multiflora variety has multiple flower stems and therefore more flowers per bulb. Through breeding they are trying to make new varieties. The main purpose of this breeding operation is to develop better, healthier and more beautiful varieties. Selection criteria include hardness, fragrance, bud color, growth and leaf position.

› Show all HYACINTHUS ›

Next to hyacinths and crocus, daffodils are the most important spring flowering bulbs. Daffodils are mostly used in gardens. They are very winter hardy and the bulbs naturalize easily. Moreover the many colors and flower types played a major role in their popularity. The large-flowering yellow daffodils are flowers that carry with them the promise that the warm spring air is arriving. The number of wild species varies. This depends on the definition of 'natural'. Usually the number is limited to 26 (not counting subspecies and varieties).

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The amaryllis (official name is Hippeastrum) originally comes from South America and is available in a lot of different colors and sorts. The bulbs are easy to grow and are available almost year round, both the bulbs and cut flowers. In order to obtain an optimal result a number of factors are of significant importance.
The bigger the bulb, the more flowers. A bulb that is planted in the spring will grow faster than a bulb that is planted in the autumn or in the winter. It is important that the bulb has had its "finishing touch". This is to say that the bulb has undergone a so-called "cold period" for approximately 8 - 10 weeks at a temperature no higher than 13°.


› Show all AMARYLLIS ›

The special flower bulbs consist of spring flowering as well as summer flowering bulbs. This “group of remaining bulbs” might even be the most interesting. Dozens, maybe even hundreds of bulb varieties belong this group. Well known representatives are for example: Muscari, Fritallaria, Allium, Anemone, Begonia, Scilla, Canna and Zantedeschia (Calla). They are used for gardens, pots and cut flower production. Sometimes a bulb type in this group generates so much attention that is becomes a main group. In the past this has happened with lilies and this could well be happening with Zantedeschia. The interest in this trend-flower is so big that the planted surface increases significantly annually.