Alnus cordata

Italian Alder

Alnus cordata, or Italian Alder, is a large deciduous tree with glossy green foliage and yellow catkins in spring. Its upright habit and fast growth make it well suited for hedging and screening in Irish gardens. Awarded the RHS Award of Garden Merit, it is a reliable, low-maintenance choice. The tree also supports wildlife, adding ecological value alongside its visual strength.

Flowering Months

Jan J

Feb F

Mar M

Apr A

May M

Jun J

Jul J

Aug A

Sep S

Oct O

Nov N

Dec D

Size

Max Height

12.0 m +

Max Spread

4.0 m — 8.0 m

Growth Habit

Tall, narrow growth habit with strongly vertical main stems.

Planting Position

Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.

Full Sun

Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.

North South East West

Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.

Exposed / Sheltered

Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.

(−20 to −15 °C) Very cold-hardy

Ideal Soil Conditions

Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.

Chalk Clay Loam

Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.

Moist but permeable / Poorly-drained / Free draining

Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.

Acid Alkaline Neutral

Plant Uses & Merits

Uses

Hedging / Screening

Merits

Low Maintenance
RHS | Award Of Garden Merit

Alnus cordata Description

Planting Guide for Alnus cordata

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Care guide for Alnus cordata

Items must be returned within 30 days after receiving your order. Items must be returned in the same condition in which they were received, be unworn/unused, have any tags still attached, and include all the original packaging.

Uses for Alnus cordata & Garden Styles it suits

Refunds are processed within 7 days from when we receive the item(s).

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