The illustrated growing guide

Persian Shield

Strobilanthes dyerianus

Family Acanthaceae

Est. zones 9-11

Botanical illustration of Persian Shield
Perennial · Strobilanthes dyerianus

Iridescent purple-silver leaves that look airbrushed with metallic paint — the most jaw-dropping foliage plant most people have never grown. Pinch it bushy, pair it with chartreuse, and root cuttings to carry it through winter.

PerennialPart Shade / bright indirect — color richest out of harsh sunModerate waterFast growth

Where to buy the plant — 1 nursery

I

Overview

Will persian shield suit your garden, and what goes wrong.

Will it thrive where you are?

Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what persian shield actually needs.

Life cyclePerennial zones 9–11, annual elsewhere

Persian Shield at a glance

Life cyclePerennial zones 9–11, annual elsewhere
Mature size2-3 ft
PollinationN/A (grown for foliage)
Chill requirementNot yet established
Bloom seasonLight-blue spikes in short days
Harvest seasonNot yet established
Growth rateFast

Common persian shield problems

II

Growing

Light, water, soil, propagation and the season’s jobs.

How to grow persian shield: light, water & soil

LightPart Shade / bright indirect — color richest out of harsh sun
WaterModerate — evenly moist
SoilRich, drained · pH 5.5 - 6.5
FertilizerMonthly in season
PruningPinch all season for bushiness — Pinch tips constantly; overwinter cuttings in a jar of water.
Spacing12-18 in

How to plant & propagate persian shield

PropagateDivision or seed

III

The year

What persian shield asks for, month by month.

The persian shield year, month by month

No fixed season calendar for persian shield — its care follows conditions, not the calendar.

IV

Ecology & uses

What it does for the garden, and what it is grown for.

Persian Shield in the garden system

  • Herbaceous layer perennial
MoistureFacultative / average
DeerBrowsed — protect young plants
OriginIntroduced

What persian shield is grown for

! Some parts toxic — see notesNo ASPCA listing found; keep pets from chewing until verified

UseMetallic foliage
UseShade containers
UseCutting keepers

Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.

V

Cultivars

Named varieties of persian shield, ruled as a catalogue.

Best persian shield varieties & cultivars

Species (no real cultivars — it's already spectacular)

VI

Sources & plant ID

Where the care distinctions come from, and how the plant is filed.

Research basis

Sources behind this profile

No extension citations are attached to persian shieldyet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialStrobilanthes dyerianus
FamilyAcanthaceae
TypePerennial · Tender Perennial
OriginIntroduced
Invasive riskLow

VII

Where to buy

Third-party nurseries — not Story Thyme Farms.

Third-party nurseries, not Story Thyme Farms. Prices are theirs.

Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.

VIII

Questions

Persian Shield questions, answered straight.

Is persian shield safe for kids and pets?

With care. No ASPCA listing found; keep pets from chewing until verified Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.

How do you propagate persian shield?

Division or seed.

IX

Elsewhere

Where persian shield sits in the library.

Where persian shield sits in the library

Grows in the same world