Erythronium - Erythronium

Erythronium - Erythronium

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The genus Erythronium includes numerous species of perennial bulbous plants, originating in North America, Asia and Central Europe. The bulbs are covered by scales, and produce 1-2 large, roundish, dark, variegated leaves of light green or brown; starting from the second year from the burial from the leaves a short stem rises on which a large single flower, similar to the lily, blooms, of white, yellow, orange, pink or violet color, depending on the species and the variety, generally with the center of contrasting color. Flowering lasts from March to May; Erythronium bulbs tend to produce new shoots every year and to cover all the land available to them. For this reason, in general, Erythronium plants are grown in the ground so that they can reproduce at their best and have all the necessary space, not having any particular problems to be exposed to winter temperatures. They are easy to grow bulbous plants that do not require particular precautions.


These bulbous plants need positions in the shade or in partial shade; they prefer mild temperatures in spring and summer, and withstand high summer temperatures as long as they are in a place sheltered from direct sunlight. Generally they do not fear the winter cold, being in vegetative rest, but it is however advisable to mulch the soil in the colder periods of the year, using straw and organic fertilizer. The Erythronium needs to receive some hours of direct light, but only during the coolest hours of the day, so it should be placed in a semi-shaded position.


In the vegetative period, from February to March to July, water abundantly, keeping the soil slightly damp; from June onwards, reduce the watering until it stops completely when the leaves begin to turn yellow. In spring provide fertilizer for flowering plants, dissolved in the water of the watering or in granules to be spread on the ground.


Erythronium plants love loose, soft and very rich in organic matter soils. They also prefer wetlands, they do not tolerate drought and too drained soils; the bulbs are buried in autumn at a depth of about 8-10 cm, leaving as much space between them. To avoid stunted growth and to favor abundant blooms it is advisable to periodically dig up the bulbs and to transplant the bulbils, so as to leave more space between one bulb and another.


in autumn it is possible to remove the Eritronio bulbils that each bulb produces over the years; the small bulbs are then buried directly at home.

Erythronium - Erythronium: Pests and diseases

Pay attention to powdery mildew, which affects the leaves, and root rot. In fact, while preferring not too drained soils that can dry too quickly and slightly damp places, the presence of too much water or humidity can be harmful for these plants. If you do not act promptly the bulb can quickly rot to the death of the plant. In case an excessive humidity is noticed it is possible to proceed with a transplantation of the bulb in more suitable ground, which allows a greater drainage.