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Alnus cordata
Alnus cordata
Alnus cordata
Alnus cordata

Alnus cordata

TAXONOMY

FamilyBetulaceae
GenusAlnus
Zone5

ABOUT

Alnus cordata, commonly known as the Italian Alder, is a deciduous tree native to southern Italy and Corsica. It belongs to the family Betulaceae and the genus Alnus. This tree is known for its rapid growth and ability to thrive in a variety of soil conditions. It typically grows to a height of 15-25 meters and has a conical shape. The leaves are heart-shaped, and it produces catkins in early spring. Alnus cordata is often used in landscaping and for erosion control due to its nitrogen-fixing ability.

ALSO KNOWN AS

Italian Alder
Alnus cordata
Alnus cordata f. parvifolia
Alnus cordifolia
Alnus cordifolia var. rotundifolia
Alnus macrocarpa
Alnus neapolitana
Alnus nervosa
Alnus obcordata
Alnus rotundifolia
Betula cordata

OVERVIEW

WaterWet
SoilLoamy
LightDirect Bright (6 Hours)
Temperature15° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Alnus cordata requires bright, direct sunlight for optimal growth. It thrives in moderate temperatures and prefers environments with moderate humidity. Regular watering is essential to keep the soil evenly moist, especially during the growing season. This tree is relatively easy to care for but does require some attention to ensure it remains healthy.
Soil
Alnus cordata prefers well-draining loamy soil that is rich in nutrients. It can tolerate a range of soil pH levels but thrives best in slightly acidic to neutral soil. Good drainage is essential to prevent waterlogging, which can harm the roots.
Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is suitable for Alnus cordata. Fertilize in early spring and again in mid-summer to support its rapid growth. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of root development.
Repotting
Repotting is generally not necessary for Alnus cordata when grown outdoors. However, if grown in a container, repotting should be done every 2-3 years to provide fresh soil and adequate space for root growth. Choose a larger container and ensure good drainage.
Propagation
Alnus cordata can be propagated by seeds or cuttings. Seeds should be sown in the fall or stratified before spring planting. Cuttings can be taken in late summer and rooted in a well-draining soil mix. Ensure the cuttings are kept moist and in a bright location.
Pruning
Pruning is necessary to maintain the shape and health of Alnus cordata. Prune in late winter or early spring before new growth begins. Remove any dead, diseased, or crossing branches to improve air circulation and light penetration.
Toxicity
Alnus cordata is not known to be toxic to pets or humans. However, as with all plants, it is advisable to prevent pets and children from ingesting any part of the plant.
Additional
Alnus cordata is valued for its ability to improve soil fertility through nitrogen fixation. It is also resistant to many pests and diseases, making it a robust choice for various landscaping needs. Regular monitoring for any signs of stress or disease will help ensure the tree remains healthy.
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