The Botanical Diary
N
Ornamental

Northern Catalpa

Catalpa bignonioides

Catalpa leaves are three times larger than maple leaves—among the largest of all deciduous trees.

Regions
Centre, South, West
Colour
white з плямами
Northern Catalpa
🌸
Bloom
June–July
☀️
Light
Full sun / напівтінь
💧
Watering
Moderate
📏
Height
10–15 m
❄️
Hardiness
Zone 5b

Eastern Catalpa is one of the most exotic trees that can be grown in a temperate climate. Native to the southeastern United States, it has long captivated European gardeners with its unusual appearance and luxuriant flowering. For Ukrainian gardens, this is a true treasure that brings tropical charm to northern latitudes.

The appearance of the catalpa is striking at first sight: enormous heart-shaped leaves, three times larger than those of a maple, create dense shade and give an impression of true exoticism. In early summer, the tree is covered with clusters of white flowers marked with yellow and purple spots—a spectacle that will not leave any gardener indifferent. After flowering, long pod-like fruits appear, adding ornamental value to the plant even in autumn.

In the garden, the catalpa quickly becomes a focal point of any composition. It looks splendid as a standalone accent on a lawn and equally well alongside ginkgo, tulip tree, or plane tree. The plant is remarkably undemanding in care—moderate watering is sufficient, and it will delight you year after year. Young saplings are best protected in winter with horticultural fleece, whilst mature trees readily tolerate Ukrainian winters.

If you wish to create a corner in your garden where summer heat seems less oppressive and birds readily choose shelter, Eastern Catalpa awaits you. This tree offers not only beauty but also a true gardener's satisfaction in observing its vigorous growth and years of flowering.

Location & soil

Northern Catalpa — planting & location

LightFull sun / напівтінь
Soil typeany, рН 6–7,5
Planting timeOctober або April
Plant spacing5–7 m
Planting depthAt root collar level

Very large foliage, exotic appearance, decorative seed pods

Water needs

How to water Northern Catalpa

IntensityModerate
FrequencyMay–August (молоді)
Volume15–20
MethodПід крону

Moderate watering

Annual care

Fertilizing and pruning: Northern Catalpa

Spring fertilizingNitrogen (April)
Summer fertilizingDo not fertilise
Autumn fertilizingDo not fertilise
Pruning timeНавесні (sanitary)
Pruning typeSanitary

Remove diseased and unnecessary branches

Cold hardiness

Northern Catalpa — winter hardiness & care

Hardiness zoneZone 5b
Winter coverHorticultural fleece for young plants
Cover timingNovember
Plant protection

Diseases and pests of Northern Catalpa

Diseases
ВертіцільозPowdery mildew
Pests
AphidSpider mite
Garden design

What grows well with Northern Catalpa?

Гінкго, тюльпанне дерево, платан