Colocasia esculenta 'Blackwater'
bulb corm tuber

Blackwater Taro

Colocasia esculenta 'Blackwater'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

48 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

8, 9

Water

Requires consistently moist to wet soil

Humidity

Prefers high humidity

Lifespan

Perennial

Native To

Southeast Asia

Toxicity

All parts contain calcium oxalate crystals; toxic if ingested raw.

The Story

Plant Bio

A tropical perennial known for its striking dark foliage and large leaves. The 'Blackwater' cultivar is unique for its deep purple to almost black leaves with a glossy appearance.

Bloom Period:

J
F
M
A
M
J
J
A
S
O
N
D
EarlyLate

Uses & Benefits:

Ornamental UsesStriking dark foliage adds dramatic contrast to tropical gardens.
Practical UsesProvides shade and moisture retention in garden beds.
Ecological BenefitsSupports pollinators attracted to its flowers and foliage.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

  1. Tuck corms into well-draining soil in spring after the last frost.
  2. Water regularly to keep soil consistently moist, especially during hot weather.
  3. Mist foliage frequently in dry conditions to boost humidity.
  4. Fertilize monthly with balanced liquid fertilizer during the growing season.
  5. Divide clumps every 2-3 years in early spring for vigorous growth.
  6. Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Plant corms at a depth twice their size for optimal growth and stability.

Keep It Thriving

Care Guide

Do

  • Keep soil consistently moist 🌱
  • Provide partial to full sun for best foliage color
  • Use a balanced fertilizer monthly during active growth
  • Mulch to conserve moisture and regulate soil temperature
  • Divide clumps every 2-3 years to promote healthy growth

Don't

  • Avoid waterlogging, which can cause corm rot ❌
  • Don’t plant in full shade, as it may reduce foliage vibrancy
  • Do not let soil dry out completely during peak summer
  • Avoid using high-nitrogen fertilizers that encourage leggy growth
  • Refrain from disturbing plants during dormancy

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Lift Store
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tropical pond borderDramatic foliage accentShade garden centerpiece

Companion Plants

Ferns Caladium Hostas Lobelia Taro

Multiply

Propagation Methods

Good to Know

Common Questions

Blackwater Taro questions

What zones can Blackwater Taro grow in?

Blackwater Taro is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Blackwater Taro deer resistant?

Yes β€” Blackwater Taro is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Blackwater Taro bloom?

Blackwater Taro typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone β€” Sow's bloom calendar maps it to your garden.

Does Blackwater Taro need full sun?

Blackwater Taro does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Keep exploring

Explore the genus

Collections featuring this plant

Grow Blackwater Taro 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.

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