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Quercus bimundorum Crimson spire

Quercus bimundorum Crimson spire
Oak

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More information

Quercus bimundorum Crimson Spire is a beautiful columnar oak tree, which tends to spread with time. It has a rapid growth, reaching a height of 10m (33ft) in 10 years, with a width of 3m (10ft). Its beautiful green foliage, with a hint of blue in summer, turns into rich autumnal colours, ranging from orange to red. Eventually, it browns while still persisting on the tree until the new leaves appear in the following spring. With its healthy foliage that is highly resistant to diseases, it is a particularly recommendable variety.
Height at maturity
10 m
Spread at maturity
3 m
Exposure
Sun
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time October to November
Recommended planting time February to March, October to December
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Description

Quercus bimundorum Crimson Spire is a very beautiful columnar oak tree, perfect for avenues or as a standalone specimen. It quickly reaches a height of 10m (33ft) and can grow up to 15m (49ft) when mature, while its narrow width (3m (10ft) after 10 years, 5m (16ft) at maturity) makes it suitable for planting in even small gardens. Its beautiful green foliage turns to orange-red in autumn, transforming this oak tree into a colourful torch as winter approaches. The marcescent leaves persist on the branches until new shoots emerge in the following spring. With fast growth and good resistance to diseases that can affect certain oak trees, it is a variety to prioritise in the garden.

 

Oak trees belong to the Fagaceae family, which includes other noble tree species such as chestnuts and beeches. These trees have great ecological importance in their natural habitat, and humans owe them a lot on an economic level (land constructions, ships...). The Quercus genus is so rich that entire books are dedicated to it; in addition to the deciduous species that are familiar to us, there are also evergreen species with a surprising diversity of forms. In temperate climates, European oaks are traditionally distinguished from American oaks, but some species grow as far as the tropical regions of Asia.
Quercus x bimundorum Crimson Spire is a hybrid between European and American oaks that has taken the best features from both parents. Morphologically very similar to the European Quercus robur 'Fastigiata', from which it borrowed its columnar habit, it also benefits from the rich orange-red autumn foliage of its American parent, Quercus alba. It is also resistant to mildew and powdery mildew, allowing it to maintain healthy foliage throughout the season.
This tree should be planted in a sunny location with moist, neutral pH soil. It is highly frost resistant, down to -25°C (-13°F) and will thrive in any good garden soil with sufficient nutrients, as long as it does not dry out in summer.

 

 

The 'Crimson Spire' oak has an interesting architectural habit for French or contemporary gardens. In its young age, it forms a well-defined column, measuring 10m (33ft) in height and 3m (10ft) in width at 10 years old. It then slightly widens to take on an oval shape, forming a tree that is 15m (49ft) tall and 5m (16ft) wide, ideal for bordering a pathway, being the centrepiece of a bed, or as a specimen in a lawn. The leaves have indistinct lobes and are dark green in colour. In autumn, they gradually turn orange-red, and even purple.
It can be happily associated with other woody plants with yellow or golden foliage, such as the Cercis 'Hearts of Gold', whose pretty heart-shaped leaves change colour throughout the year (from red to lime green to yellow) and will stand out in terms of shape and shade compared to our oak tree. A golden Physocarpus will also be a great companion to create a contrast of colors...
Its elegant and regular shape will blend harmoniously with other woody plants shaped into topiaries (cushions, cloud-shaped trees...) in gardens where overall volumes and shapes take precedence over the individuality of each plant.

 

Quercus bimundorum Crimson spire in pictures

Quercus bimundorum Crimson spire (Foliage) Foliage

Plant habit

Height at maturity 10 m
Spread at maturity 3 m
Habit upright, columnar
Growth rate fast

Flowering

Flower colour insignificant

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Quercus

Species

bimundorum

Cultivar

Crimson spire

Family

Fagaceae

Other common names

Oak

Origin

Cultivar or hybrid

Product reference1001801

Other Oak

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Planting and care

Quercus x bimundorum 'Crimson Spire' grows in ordinary but deep soil, with a slightly acidic pH. It thrives best in full sun. When planting, it is advisable to add compost to the bottom of the hole to enrich the existing soil. Plant preferably in autumn and water abundantly. Monitor watering during the first two years, especially in summer, to prevent the soil from drying out.
Apply organic food in spring to promote growth from the second year, once the roots have started to colonise the soil.

Once established, it is a sturdy tree, not susceptible to powdery mildew, which covers the leaves of certain oak species with an unsightly white film that impairs photosynthesis. Similarly, it is resistant to downy mildew and can tolerate partial coverage of the soil by paving, allowing it to be planted along pathways.

Planting period

Best planting time October to November
Recommended planting time February to March, October to December

Intended location

Suitable for Meadow
Type of use Border, Back of border, Free-standing
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Exposure Sun
Soil pH Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground

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