perennial

Nigrescens African Lily

Agapanthus inapertus 'Nigrescens'

The Story

Plant Bio

A deciduous, clump-forming perennial with strap-like green leaves. In summer, it produces tall, upright stems topped with umbels of pendulous, tubular, very dark violet-blue flowers that appear almost black.

This cultivar is distinguished by its unusually dark, almost black flowers, providing a dramatic contrast in garden displays and attracting pollinators with its unique coloration.

Uses & Benefits:

Its striking blue flowers and lush foliage make it an eye-catching addition to sunny borders.

Drought-tolerant and low-maintenance, ideal for water-wise gardens.

Attracts pollinators like bees and butterflies, supporting local ecosystems.

Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

Average

Humidity

Average

Lifespan

Perennial

Native To

South Africa

Toxicity

Mildly toxic if ingested; sap may cause skin irritation.

Planting

How to Grow

Tuck seeds or divisions into well-draining soil in spring.
Water regularly during first growing season to establish roots.
Mist cuttings in a humid environment for propagation.
Transplant young plants in early spring after danger of frost.
Apply a balanced fertilizer in early spring and mid-summer.
Mulch around plants to conserve moisture and suppress weeds.

Pro Tip

Ensure excellent drainage to prevent root rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 💧
Apply mulch to retain soil moisture
Divide clumps every 3-4 years for vigorous growth
Use fertilizer in early spring

Don't

Avoid overwatering in winter ❌
Don't forget to deadhead spent flowers
Refrain from heavy pruning late in the season
Do not plant in poorly-drained soil

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Spring Cleanup
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Drought-tolerant border with deep blue flowersTall focal point in sunny garden bedsVanilla-scented border plant

Companion Plants

Lavender Salvia Coreopsis Echinacea Agastache

Multiply

Propagation Methods

Good to Know

Common Questions

Nigrescens African Lily questions

What zones can Nigrescens African Lily grow in?

Nigrescens African Lily is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Nigrescens African Lily deer resistant?

Yes — Nigrescens African Lily is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Nigrescens African Lily bloom?

Nigrescens African Lily typically blooms in mid to late summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Nigrescens African Lily need full sun?

Nigrescens African Lily does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Nigrescens African Lily drought tolerant?

Yes — once established (usually after the first full season), Nigrescens African Lily handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.