The illustrated growing guide

Four O'Clock (Marvel of Peru)

Mirabilis jalapa

Family Nyctaginaceae

Est. zones 2-11

Botanical illustration of Four O'Clock (Marvel of Peru)
Perennial · Mirabilis jalapa

A delightful old-fashioned bush with its own clock — fragrant trumpet flowers opening in the late afternoon and staying open all evening to feed hawk moths and hummingbirds, often in several colors on one plant. Fast and easy from seed, drought-proof, and it makes tubers you can lift and store like dahlias, growing bushier each year. Note the seeds and roots are toxic if eaten.

PerennialFull Sun to Part ShadeLow waterFast growthAttracts hummingbirdsAttracts bees

Where to buy the plant — 3 nurseries

I

Overview

Will four o'clock (marvel of peru) 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 four o'clock (marvel of peru) actually needs.

Life cycleTender perennial, grown as an annual

Four O'Clock (Marvel of Peru) at a glance

Life cycleTender perennial, grown as an annual
Mature size2-3 ft bushy
PollinationHAWK MOTHS and hummingbirds work the evening flowers; also long-tongued bees
Chill requirementNot yet established
Bloom seasonSummer - Frost — trumpet flowers opening in late afternoon, often multicolored on one plant, sweetly fragrant
Harvest seasonOrnamental; forms edible-looking but MILDLY TOXIC seeds
Growth rateFast

Common four o'clock (marvel of peru) problems

  • Almost none
  • Almost none

II

Growing

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

How to grow four o'clock (marvel of peru): light, water & soil

LightFull Sun to Part Shade
WaterLow-Moderate — drought-tough
SoilAny well-drained · pH 6.0 - 7.5
FertilizerLight
PruningCut back; dig tubers to overwinter (z6 and colder) — A charming old-fashioned bush that blooms on its own schedule — trumpet flowers unfurling in the late afternoon (around four o'clock) and staying open, fragrant, through the evening to feed hawk moths and hummingbirds, then closing by morning. Often several flower colors appear on one plant, even one branch. Fast and easy from seed, drought-tough, and it forms tubers you can dig and store like dahlias to grow bigger each year.
Spacing12-18 in

How to plant & propagate four o'clock (marvel of peru)

PropagateDivision or seed

III

The year

What four o'clock (marvel of peru) asks for, month by month.

The four o'clock (marvel of peru) year, month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Bloom

What each band means

  • Bloomflowers open — pollinators working, frost on blossoms is the danger.

The four o'clock (marvel of peru) year as text

  • Jan quiet month
  • Feb quiet month
  • Mar quiet month
  • Apr quiet month
  • May quiet month
  • Jun bloom
  • Jul bloom
  • Aug bloom
  • Sep quiet month
  • Oct quiet month
  • Nov quiet month
  • Dec quiet month

These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.

IV

Ecology & uses

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

Four O'Clock (Marvel of Peru) in the garden system

  • Herbaceous layer perennial
  • Nectary/insectary
AttractsHummingbirds, Bees
MoistureUpland / dry
DeerBrowsed — protect young plants
OriginIntroduced

What four o'clock (marvel of peru) is grown for

! Some parts toxic — see notesSeeds and roots TOXIC if eaten — grown ornamentally

UseEvening bloom
UseHawk moths
UseOld-fashioned charm
UseFragrance

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 four o'clock (marvel of peru), ruled as a catalogue.

Best four o'clock (marvel of peru) varieties & cultivars

'Broken Colors' (marbled); 'Limelight' (gold leaf); mixed-color strains

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 four o'clock (marvel of peru)yet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialMirabilis jalapa
FamilyNyctaginaceae
TypePerennial · Tender Perennial
USDA symbolMIJA
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

Four O'Clock (Marvel of Peru) questions, answered straight.

Is four o'clock (marvel of peru) safe for kids and pets?

With care. Seeds and roots TOXIC if eaten — grown ornamentally 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 four o'clock (marvel of peru)?

Division or seed.

IX

Elsewhere

Where four o'clock (marvel of peru) sits in the library.

Grows in the same world