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Allium rotundum
Allium rotundum
Allium rotundum
Allium rotundum

Allium rotundum

TAXONOMY

FamilyAmaryllidaceae
GenusAllium
Zone5

ABOUT

Allium rotundum, commonly known as round-headed leek, is a bulbous perennial plant in the Amaryllidaceae family. Native to Europe and Asia, it is known for its spherical clusters of purple flowers. The plant undergoes a dormancy period during the winter months.

ALSO KNOWN AS

Porrum Polyanthum
Round-Headed Leek
Allium ampeloprasum
Allium ampeloprasum subsp. paterfamilias
Allium ampeloprasum var. paterfamilias
Allium baumannianum
Allium cambiasii
Allium cilicicum
Allium descendens
Allium erectum
Allium gracilescens
Allium jajlae
Allium jajlae var. baidarense
Allium multiflorum
Allium paterfamilias
Allium porphyroprasum
Allium preslianum
Allium rotundifolium
Allium rotundum subsp. erectum
Allium rotundum subsp. jajlae
Allium rotundum subsp. preslianum
Allium rotundum subsp. waldsteinii
Allium rotundum var. cambiasii
Allium rotundum var. erectum
Allium rotundum var. melleum
Allium rotundum var. porphyroprasum
Allium rotundum var. preslianum
Allium rotundum var. rubicundum
Allium rotundum var. scariosum
Allium rotundum var. waldsteinianum
Allium rubellum
Allium rubicundum
Allium scariosum
Allium scorodoprasum subsp. jajlae
Allium scorodoprasum subsp. rotundum
Allium scorodoprasum subsp. waldsteinii
Allium tmoleum
Allium waldsteinianum
Allium waldsteinii
Porrum rotundum

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Allium rotundum thrives in full sun and prefers moderate temperatures. It requires well-drained soil and should be watered sparingly, allowing the soil to dry out between waterings. The plant does well in moderate humidity and can tolerate a range of temperatures.
Soil
Allium rotundum prefers well-drained loamy soil. It is important to ensure good drainage to prevent bulb rot. The soil should be moderately fertile and slightly acidic to neutral in pH.
Fertilizer
A balanced fertilizer with a composition of 5-10-10 can be applied in the spring as new growth begins. Fertilize sparingly, as over-fertilization can lead to weak growth.
Repotting
Repotting is generally not necessary for Allium rotundum, but if needed, it can be done in the fall after the foliage has died back. Carefully lift the bulbs and replant them in fresh, well-drained soil.
Propagation
Allium rotundum can be propagated by dividing the bulbs in the fall. Separate the offsets from the parent bulb and plant them in well-drained soil. Ensure they are planted at the correct depth, usually about three times the height of the bulb.
Pruning
Pruning is not required for Allium rotundum. However, you can remove spent flower heads to prevent self-seeding and to maintain a tidy appearance.
Toxicity
Allium rotundum is not toxic to pets or humans. However, as with all Allium species, it is best to avoid excessive consumption by pets, as it can cause gastrointestinal upset.
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