Almost Black Sweet Pea
Lathyrus odoratus 'Almost Black'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
72 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Moderate
Lifespan
Annual
Native To
Mediterranean region
Toxicity
Seeds are toxic if ingested
The Story
Plant Bio
Sweet peas are known for their sweet fragrance and colorful flowers. This cultivar, 'Almost Black', features deep, dark flowers that stand out in the garden.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
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Planting
How to Grow
- Tuck seeds 1 inch deep in well-draining soil in early spring.
- Mist cuttings with water and keep in bright, indirect light for root development.
- Train vines on trellises or supports as they grow taller.
- Water regularly to keep soil moist but not waterlogged.
- Apply balanced fertilizer monthly during the growing season.
- Prune spent flowers to encourage more blooms and maintain shape.
Pro Tip
Soak seeds overnight to improve germination rate and speed up sprouting process.
Keep It Thriving
Care Guide
Do
- Provide full sun for optimal flowering 🌞
- Keep soil moist but not soggy 💧
- Support climbing vines with trellises or stakes
- Remove dead or faded flowers regularly
- Apply organic compost annually for healthy growth
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in heavy clay soil without amendment
- Never neglect support for climbing stems
- Avoid using chemical pesticides excessively
- Don’t prune back all stems at once
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvest | ||||||||||||
| Pinch | ||||||||||||
| Plant | ||||||||||||
| Stake |
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
Almost Black Sweet Pea questions
What zones can Almost Black Sweet Pea grow in?
Almost Black Sweet Pea is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Almost Black Sweet Pea deer resistant?
Not reliably. Deer may browse Almost Black Sweet Pea, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Almost Black Sweet Pea bloom?
Almost Black Sweet Pea typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Almost Black Sweet Pea need full sun?
Almost Black Sweet Pea does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Lathyrus to compare
Cupani Sweet Pea
Lathyrus odoratus 'Cupani'
Pulsar Sweet Pea
Lathyrus odoratus 'Pulsar'
Erewhon Sweet Pea
Lathyrus x belinensis 'Erewhon'
Sweet Pea
Lathyrus odoratus
Sweet Pea
Lathyrus odoratus 'Painted Lady'
Sweet Pea 'High Society'
Lathyrus odoratus 'High Society'
Keep exploring
Explore the genus
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Grow Almost Black Sweet Pea 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.
