annual

Poppy of Troy

The Story

Plant Bio

Papaver setigerum is a hardy annual poppy with glaucous, lobed leaves and solitary, cup-shaped flowers on long stems.

This species, closely related to the opium poppy, features delicate lilac to pale purple petals, each with a dark basal spot, and bristly seed capsules.

Uses & Benefits:

Papaver setigerum offers charming, delicate flowers that brighten wildflower gardens and naturalistic landscapes.

Its hardy nature makes it suitable for erosion control on slopes and poor soils.

Provides nectar for pollinators such as bees and butterflies, supporting local ecosystems.

Essentials

At a Glance

Plant Type

Annual

Height

24 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9, 10

Water

Moderate

Humidity

Average

Lifespan

Annual

Native To

Mediterranean region

Toxicity

All parts are toxic if ingested

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings lightly to maintain soil moisture and promote root growth.
Water regularly during active growth, avoiding waterlogged conditions.
Apply a balanced fertilizer once seedlings are established, after 4 weeks.
Prune spent flowers to encourage continuous blooming throughout spring and early summer.
Divide mature plants every 3-4 years to maintain vigor and prevent overcrowding.

Pro Tip

Sow seeds directly in the garden for naturalized growth and vibrant spring blooms.

Keep It Thriving

Care Guide

Do

Ensure soil is well-draining to prevent root rot 🌱
Water deeply during dry spells to keep roots healthy 🌱
Mulch around plants to retain moisture and suppress weeds 🌱
Deadhead spent flowers to promote prolonged blooming 🌱

Don't

Avoid overwatering, which can lead to fungal diseases ❌
Do not disturb roots during peak flowering ❌
Skip fertilizing in late fall to prevent unnecessary growth ❌
Refrain from planting in poorly drained soils ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Harvest
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower meadow with delicate, papery bloomsNaturalized border with a soft, airy appearanceErosion control on gentle slopes

Companion Plants

Lupinus Eschscholzia Nigella Coreopsis Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Poppy of Troy questions

What zones can Poppy of Troy grow in?

Poppy of Troy 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 Poppy of Troy deer resistant?

Not reliably. Deer may browse Poppy of Troy, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Poppy of Troy bloom?

Poppy of Troy 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 Poppy of Troy need full sun?

Poppy of Troy does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Poppy of Troy drought tolerant?

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