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Nyssa sylvatica (Black Gum)

Sour Gum

Nyssa sylvatica (Black Gum) is a stunning deciduous tree admired for its glossy green foliage and spectacular autumn colour. In New Zealand gardens it transforms into vibrant shades of red and orange, creating a striking seasonal display. The elegant form and strong branching structure make it a standout feature tree. Nyssa sylvatica (Black Gum) is ideal for larger gardens where year round interest and autumn colour are desired.

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Suited to regions:All regions
Plant type:Trees
Height:12.00 m
Spread:8.00 m
Flowering time:Spring
Tolerances:
Garden uses:Parks, Ponds, Specimen
Garden styles:Alpine, Architectural, Japanese, Modern, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asSour Gum
Sku13746

How to grow Nyssa sylvatica (Black Gum) in NZ

Nyssa sylvatica (Black Gum) grows best in a sunny or lightly shaded position with fertile soil that drains well. Choose a sheltered site where the tree can develop its natural shape. It prefers slightly moist soil conditions and benefits from added organic matter before planting. Water regularly during establishment and maintain consistent moisture during dry periods so the tree establishes well and grows strongly.

Nyssa sylvatica (Black Gum) care tips

Nyssa sylvatica (Black Gum) is relatively low maintenance once established. Water during extended dry periods to support healthy growth and vibrant foliage. Mulch around the base to help retain soil moisture and improve soil structure while keeping mulch clear of the trunk. Pruning is generally minimal but can be done in winter to remove damaged or poorly placed branches.

Nyssa sylvatica (Black Gum) size, spacing, and growth rate

Nyssa sylvatica (Black Gum) typically grows to around 10 to 15 metres tall and spreads about 6 to 8 metres wide when mature. Growth is moderate and trees gradually develop a strong upright structure with a broad canopy. When planting allow sufficient space so the tree can reach its full size and receive good sunlight and airflow. With good conditions it establishes steadily.

Landscaping uses for Nyssa sylvatica (Black Gum)

Nyssa sylvatica (Black Gum) is ideal as a feature tree in large gardens, parks, and open landscapes. The brilliant autumn colour makes it a focal point during the cooler months. It works well planted in lawns or incorporated into mixed tree plantings for seasonal contrast. In New Zealand landscapes it is valued for its beauty, structure, and reliable performance.

Why buy Nyssa sylvatica (Black Gum) from The Plant Company?

The Plant Company supplies premium quality Nyssa sylvatica (Black Gum) trees that are carefully grown for strong performance in New Zealand landscapes. As NZs most trusted plant nursery we provide healthy plants, expert advice, and fast nationwide delivery. Our trees are selected for vigour and garden success so you can establish impressive feature plantings with confidence. When you buy from The Plant Company you receive quality plants backed by knowledgeable support.

Questions and Answers

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