The Story
Plant Bio
Kennedia nigricans, commonly known as Black Kennedia, is a vigorous climber with attractive foliage and vibrant flowers. It's favored for its ornamental qualities and ability to cover structures quickly.
Notable for its striking dark red flowers which are an unusual color in the context of climbing plants, this species is also known for its ability to thrive in poorer soils.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Vine
Height
180 inches
Width
96 inches
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Low once established
Humidity
Average to dry
Lifespan
Perennial
Native To
Australia
Toxicity
Non-toxic to humans and pets
Planting
How to Grow
- Tuck young vines into a trellis or wall for support.
- Mist cuttings regularly to maintain humidity.
- Water consistently, especially during dry spells.
- Fertilize with a balanced fertilizer in early spring.
- Prune after flowering to encourage new growth.
- Mulch around the base to retain moisture.
Pro Tip
Use a well-draining soil mix and provide full sun for optimal growth.
Keep It Thriving
Care Guide
Do
- Water deeply during dry periods 🌱
- Prune to shape and remove dead branches
- Feed with a low-phosphorus fertilizer in spring
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t neglect pruning after flowering
- Refrain from planting in heavy clay soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Propagate | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Black Kennedia questions
What zones can Black Kennedia grow in?
Black Kennedia is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Black Kennedia deer resistant?
Yes — Black Kennedia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Black Kennedia bloom?
Black Kennedia typically blooms in late winter to late spring through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Black Kennedia need full sun?
Black Kennedia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Black Kennedia drought tolerant?
Yes — once established (usually after the first full season), Black Kennedia handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Kennedia to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Black Kennedia with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.