Nyssa sylvatica 'Forum' - Evergreen Trees Direct

Nyssa sylvatica 'Forum'

Name: Nyssa sylvatica 'Forum'
Brand: Evergreen Trees Direct
SKU: NYSSYLFOR100L
Price: 620.00 AUD
Availability: InStock

Nyssa sylvatica 'Forum'

$620.00

Tax included. Shipping calculated at checkout.

Size: 100L

100L 40cm/45L

Shipping is calculated at checkout based on the pallet space your order occupies in the truck and your delivery location. There is no charge to calculate your freight.

Current Stock Height Guides

40cm/45L: 0.8m – 1.3m Approx.
100L: Enquire within for height guide information.

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you mustconfirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Root Ball Dimensions (Height & Width)

Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.

30cm Pot: 33cm (W) × 30cm (D)
40cm/45L Pot: 44cm (W) × 41.5cm (D)
50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
100L Bag: 50.6cm (W) × 52.8cm (D)
150L Bag: 66cm (W) × 55cm (D)
200L Bag: 71.5cm (W) × 60.5cm (D)
300L Bag: 88cm (W) × 63.8cm (D)
400L Bag: 99cm (W) × 66cm (D)
500L Bag: 122cm (W) × 66cm (D)
750L Bag: 134cm (W) × 69cm (D)
1000L Bag: 146.3cm (W) × 71.5cm (D)
2000L Bag: 176cm (W) × 82.5cm (D)

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About Your New Nyssa sylvatica 'Forum'

Nyssa sylvatica 'Forum', known as the Forum Black Gum Tree, is a striking deciduous tree admired for its glossy green leaves that transform into vibrant reds, oranges, and purples each autumn. Growing 10–15 meters tall and 6–10 meters wide, it features an upright, pyramidal form that adds elegance and year-round interest to parks, gardens, and large landscapes.

This tree produces small, inconspicuous flowers in spring and tolerates a range of soils including clay and loam. It thrives in full sun to partial shade and has moderate drought tolerance, requiring regular watering during establishment and dry periods. Maintenance is low, with minimal pruning needed to maintain its shape.

Ideal for adding seasonal color and structure, the Forum Black Gum is a versatile and visually appealing choice for diverse planting schemes.

Uses in my Garden

Feature Tree
Avenue Planting
Shade Tree
Street Tree

Nyssa sylvatica 'Forum' works in an:

Formal Garden – structured, symmetrical design with clipped shapes.
Modern Garden – sleek, minimal, and design-led planting.
Woodland Garden – layered, naturalistic design under dappled light.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Is Nyssa sylvatica 'Forum' Evergreen or Deciduous?

Nyssa sylvatica 'Forum' is an Deciduous (Defoliates throughout colder months) Tree

Mature Height & Width

Mature Height: 10m - 15m Approximately

Mature Width: 6 m – 10 m

Nyssa sylvatica 'Forum' is expected to grow Approx. 30 – 60 cm per year.

Growth Rate of Nyssa sylvatica 'Forum'

Nyssa sylvatica 'Forum' is expected to grow Approx. 30 – 60 cm per year.

They are considered to have a:

Medium Growth Rate

Frost Tolerance & Ideal Climate to plant Nyssa sylvatica 'Forum'

Is Nyssa sylvatica 'Forum' frost tolerant?

Nyssa sylvatica 'Forum' is Frost Hardy – Survives heavy and frequent frost without damage.

Northern NSW (Byron, Coffs, Armidale)
Sydney & Central Coast
Inland NSW / Tablelands (Orange, Bathurst, Canberra)
Melbourne & Surrounds (Metro, Bayside, Geelong, Bellarine, Mornington)
Western District & Central VIC (Ballarat, Bendigo, Hamilton)
Gippsland (Latrobe Valley, East Gippsland)
Adelaide Metro & Coastal
Adelaide Hills & Barossa

Does Nyssa sylvatica 'Forum' Flower?

Nyssa sylvatica ‘Forum’ produces small, greenish-yellow flowers in late spring. While subtle and not ornamental, these nectar-bearing blooms support early pollinators and lead to small bluish-black berries that ripen in late summer.

Does Nyssa sylvatica 'Forum' flower?

Yes - Flowers

Flowering Period:

Spring

Flower Type:

Not Applicable

Flower Colour:

White

Is Nyssa sylvatica 'Forum' an Australian Native Tree?

No

Nyssa sylvatica 'Forum' is Native to Native to eastern North America, where Nyssa sylvatica grows in wetlands and forests. ‘Forum’ is a selected cultivar valued for its symmetrical form and intense autumn colour.

What is the Wildlife Value of Nyssa sylvatica 'Forum' ?

Its nectar-rich blooms attract bees and beneficial insects, while the late-summer fruits are highly valued by birds. The dense, pyramidal canopy provides excellent shelter and nesting habitat, making it an outstanding tree for enhancing biodiversity in parks, large gardens and naturalistic plantings.

How much Sunlight does Nyssa sylvatica 'Forum' need?

Nyssa sylvatica 'Forum' will thrive best in:

Full Sun

Preferred Soil?

Nyssa sylvatica ‘Forum’ performs best in moist, well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. It may struggle in alkaline or compacted soils unless improved with organic matter to enhance structure, moisture retention and aeration. Keep soil evenly moist during establishment, then maintain deep, occasional watering as the tree matures to support steady growth, strong root health and its renowned autumn foliage display.

Is Nyssa sylvatica 'Forum' Drought Tolerant?

Is Nyssa sylvatica 'Forum' Drought tolerant?

As a young tree it requires regular watering, and once established ‘Forum’ offers moderate drought tolerance. It performs best in moist, well-drained soils but withstands occasional dry periods with deep, infrequent watering. Consistent moisture helps maintain its signature vibrant autumn colour.

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How To Plant Your Nyssa sylvatica 'Forum'

How to Plant Nyssa Sylvatica 'Forum'

Choose a well-drained planting site with exposure to full sun or partial shade.
Dig a hole slightly larger than the root ball.
Place the tree in the hole, ensuring the top of the root ball is level with the surrounding soil.
Backfill with soil and water thoroughly.
Apply a layer of mulch to conserve moisture and suppress weeds.

Recommended Planting Spacing For Your Nyssa sylvatica 'Forum'

Hedging & Screening: Not suitable due to deciduous nature and broad canopy.

Feature Tree: Plant 4 m – 6 m apart to highlight autumn colour and form.

Avenue Planting Trees :Plant 6 m – 8 m apart for consistent canopy spread.

Nyssa sylvatica 'Forum' is expected to grow Approx. 30 – 60 cm per year.

Medium Growth Rate

Long Term Care For Your Nyssa sylvatica 'Forum'

Caring for Nyssa Sylvatica 'Forum'

Pruning: Prune as needed to maintain shape and remove dead or crowded branches.

Fertilization: Apply a balanced fertilizer in spring to support healthy growth.

Watering: Provide regular watering, particularly during dry spells and the first year after planting.

Planting Your Nyssa sylvatica 'Forum' in Different Soil

How to Grow in Different Soil Types

Nyssa sylvatica 'Forum' thrives in moist, well-drained soils but adapts to a range of conditions:

Sandy Soil: Needs regular watering and added organic matter to improve nutrient retention.

Clay Soil: Can tolerate seasonal wetness, but benefits from compost and aeration to improve drainage.

Loamy Soil: Ideal for deep root growth and strong canopy development.

Acidic or Alkaline Soil: Prefers slightly acidic conditions, but adapts to neutral pH soils.

Root Ball Dimensions (Width × Depth) For Planting

Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.

30cm Pot: 33cm (W) × 30cm (D)
40cm/45L Pot: 44cm (W) × 41.5cm (D)
50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
100L Bag: 50.6cm (W) × 52.8cm (D)
150L Bag: 66cm (W) × 55cm (D)
200L Bag: 71.5cm (W) × 60.5cm (D)
300L Bag: 88cm (W) × 63.8cm (D)
400L Bag: 99cm (W) × 66cm (D)
500L Bag: 122cm (W) × 66cm (D)
750L Bag: 134cm (W) × 69cm (D)
1000L Bag: 146.3cm (W) × 71.5cm (D)
2000L Bag: 176cm (W) × 82.5cm (D)

Frequently Asked Questions

Frequently Asked Questions

Q: What is the best use for Nyssa Sylvatica 'Forum' in a garden?

A: This adaptable black gum tree is well-suited for parks, gardens, and larger landscapes, providing year-round visual interest and stunning autumn foliage.

Q: How tall does Nyssa Sylvatica 'Forum' grow?

A: The mature height typically ranges from 10 to 15 meters, making it an excellent choice for various garden settings.

Q: Is Nyssa Sylvatica 'Forum' drought-tolerant?

A: While it exhibits moderate drought tolerance, regular watering is advisable during dry periods, especially in the establishment phase.

Q: When should I prune Nyssa Sylvatica 'Forum'?

A: Pruning can be done as needed to maintain shape and remove any dead or overcrowded branches. Light pruning is generally sufficient.

Q: Can I plant Nyssa Sylvatica 'Forum' in urban areas?

A: Yes, this black gum tree is tolerant of urban conditions and a range of soil types, making it suitable for city gardens and landscapes.