Alnus glutinosa

Common alder

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Benefits according to our specialist

Winterhard
Verbetert bodemkwaliteit
Geschikt voor natte gronden
Trekt vogels aan
Snelle groeier

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Plant features
Description
Frequently Asked Questions
Planting and care
Packaging and shipping

Plant features Alnus glutinosa

Common alder

Genus
Alnus (view all varieties)

Root type
Pot

Flowering months
February, March

Leaf colour
Yellow, Green

Possibilities
Solitary

Soil type
All soil types, well-drained

Positioning
Semi-shade, Sun

Winter hardiness
-34,4°C / -28,9°C, USDA zone 4

Fruit-bearing plants
Yes

Water needs
Average water

Evergreen plants
No

Leaf colour
Green

Fragrant plants
No

Growth habit
Upright growth habit

Mature height (cm)
3000

Art. no.
1001591

Description Alnus glutinosa | Common alder

The Alnus glutinosa, commonly known as the Common alder, is a deciduous shrub with an upright growth habit. This plant can reach a height of up to 30 metres and spreads to about 6 metres wide. The leaves of the Common alder are green, rounded, and have a slightly sticky texture when young. They are not fragrant. As a non-evergreen plant, it sheds its leaves in winter. The Common alder is relatively low-maintenance and is known for producing small, woody cones that contain seeds. These features make it a popular choice for attracting birds to the garden.

Key Plant Characteristics of Alnus glutinosa

Alnus glutinosa blooms in February and March with yellow and green flowers. These flowers are not fragrant but are attractive to bees and butterflies.
The plant thrives best in sunny or partially shaded locations for optimal growth.
It is adaptable to all soil types, provided the soil is well-drained.
The bark of Alnus glutinosa is dark and smooth, with branches that support its upright growth habit.
This garden plant is known for improving soil quality and is suitable for wet grounds.

Application of the Alnus glutinosa in the Garden

The Alnus glutinosa is ideal for use as a solitary plant in gardens, providing a striking focal point with its upright growth habit.
This plant is winter hardy, thriving in temperatures as low as -34.4°C, making it suitable for various climates.
It combines well with other shrubs and plants that prefer moist soil, enhancing the overall garden design.
The greatest ornamental value of Alnus glutinosa is its ability to attract birds, adding life and movement to the garden.

Planting & care Alnus glutinosa (Common alder)

We would like to provide some tips on how to plant and care for a Garden plants. By following these tips, you can be sure to enjoy your Garden plants for a long time.

Ideal placement of a Alnus glutinosa

Alnus glutinosa thrives best in sunny to partially shaded areas. It prefers well-drained soil but is adaptable to various soil types, including wet grounds. This plant is particularly beneficial for improving soil quality, making it a great choice for gardens with challenging conditions. The right location ensures robust growth and vibrant foliage, enhancing its natural beauty. Alnus glutinosa is ideal for solitary planting, where its upright growth habit can be fully appreciated. Its ability to attract birds adds an extra dimension to the garden. Choosing the correct spot is crucial for its healthy development and flowering.

How do I plant a Alnus glutinosa?

Proper soil preparation is crucial before planting Alnus glutinosa. This process ensures the soil is well-drained and rich in nutrients, which is vital for healthy plant growth. Mixing organic materials like compost into the existing soil improves water permeability and nutrient availability. Plants grown in pots can be planted year-round, except during frost periods. After planting, it's important to water the plants until they are well-rooted. The size of the plant determines the number of plants per metre; for Alnus glutinosa, consider spacing them appropriately. For detailed planting instructions, follow the guidelines carefully.

Pruning a Alnus glutinosa

Alnus glutinosa, known for its upright growth, benefits from occasional pruning. Pruning is not essential, but it can help maintain shape and remove any dead or crossing branches. The best time to prune is late winter or early spring, before new growth begins. This timing helps to stimulate healthy growth and can encourage more blooms. Use clean, sharp tools like secateurs or pruning saws to make precise cuts. Removing spent flowers during the blooming period can also promote further flowering. Regular maintenance ensures the plant remains healthy and attractive in the garden.

Watering a Alnus glutinosa

Alnus glutinosa, known for its upright growth, thrives in moist conditions but can tolerate dry spells once established. Watering should be thorough, allowing excess to drain away, rather than frequent light watering. This ensures deep root growth and better drought resistance. The best time to water is early morning or late afternoon to minimise evaporation. Checking the soil moisture is crucial; water only when the top layer feels dry. Collected rainwater is an excellent option for this plant. Initially, supplement drip irrigation with hand watering until the plant is well-rooted. Proper drainage is essential, whether planted in the ground or in containers.

Fertilising a Alnus glutinosa

Fertilising Alnus glutinosa is essential for its growth and vitality. Regular feeding supports healthy development and enhances flowering. Organic fertilisers are recommended as they prevent root and leaf burn, which can occur with improper use of chemical fertilisers. Consider using Heijnen's Organic Starter Fertilizer in spring and Organic Maintenance Fertilizer in summer. Fertilise twice a year, adjusting the amount based on the plant's size. Nutrients are absorbed when dissolved in water, so during dry spells, water the garden to help release nutrients into the soil. This ensures the plant receives the nourishment it needs for optimal health.

The characteristics of a Alnus glutinosa

The Alnus glutinosa, commonly known as the Common alder, is notable for its ability to improve soil quality by fixing nitrogen, making it beneficial for surrounding plants. This fast-growing shrub is also a favourite among birds, providing them with both shelter and food, especially in wetland areas.

Frequently Asked Questions Alnus glutinosa (Common alder)

What will be the height of Alnus glutinosa?

The mature height of the Alnus glutinosa can reach up to 25 metres. This plant is known for its rapid growth, making it a prominent feature in any garden.

What will be the width of Alnus glutinosa?

The Alnus glutinosa can spread to a width of approximately 4 to 8 metres when fully grown. This plant is known for its upright growth habit and ability to thrive in various soil conditions.

Which soil type is most suitable for the Alnus glutinosa?

The most suitable soil type for Alnus glutinosa is well-drained soil, although it can adapt to various soil types. This plant thrives in moist conditions, making it ideal for areas with wet soil.

What is the ideal positioning for the Alnus glutinosa?

The ideal location for Alnus glutinosa is in a sunny or partially shaded spot in the garden. It thrives in well-drained soil and can adapt to various soil types, making it versatile for different garden settings.

What is the flowering colour of the Alnus glutinosa?

The flowers of the Alnus glutinosa are typically yellow and green. This plant blooms in February and March, adding subtle colour to the garden during the late winter months.

What is the flowering time of the Alnus glutinosa?

The flowering period for this plant is typically in February and March. Alnus glutinosa produces yellow and green flowers during this time.

Is the Alnus glutinosa hardy?

The Alnus glutinosa is generally hardy and can withstand cold temperatures. However, its ability to survive winter conditions can be influenced by factors such as the timing of frost and its location in the garden, including soil type and exposure to wind.

Is the Alnus glutinosa evergreen?

Alnus glutinosa is not evergreen, meaning it loses its leaves in winter. However, new leaves will appear in spring as temperatures rise.

What is the growth strength of the Alnus glutinosa?

The growth potential of Alnus glutinosa is significantly enhanced by proper care and timely fertilisation. Ensuring the plant receives adequate sunlight and regular maintenance will support its robust development and overall health.

Packaged with love, for you! Our unique plant packaging

If we are proud of anything at Heijnen Plants, it is our plant packaging. We have developed our own unique way of packaging our 9x9 cm potted plants. After years of continued development and research, we managed to create packaging that allows plants to be delivered to your home undamaged and quickly through a parcel service. This makes us unique!

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Hedge plants, trees, large plants and grass

If you have ordered large-sized plants or trees, we deliver them on sealed pallets and place them around your house or driveway. The pallets are sturdy and provide optimal protection for large-sized plants.

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We deliver small or medium-sized plants in boxes. The size of the box depends on the size of the plant. We always make sure that the plant has enough space but still stands firmly in the box, so it cannot be damaged during transport.

The ideal variety for you

Buy Alnus glutinosa

The Alnus glutinosa, known as the Common alder, is a versatile shrub perfect for any garden. With its upright growth habit, it thrives in both sun and partial shade. This hardy plant blooms with yellow and green flowers in February and March. It improves soil quality and is ideal for wet grounds. Attracting birds and growing quickly, it's a great choice for a vibrant garden. Discover this wonderful plant at Heijnen today.

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