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Raised garden bed I – solid 2⅜ in European larchRaised garden bed IRaised garden bedsRaised garden bed L – solid 2⅜ in European larchRaised garden bed LRaised garden bedsRaised garden bed U – solid 2⅜ in European larchRaised garden bed URaised garden bedsBed I with bench – solid 2⅜ in European larchBed I with benchRaised garden bedsBed L with bench – solid 2⅜ in European larchBed L with benchRaised garden bedsSolid bench – solid 2⅜ in European larchSolid benchSeatingPedestal bench – solid 2⅜ in European larchPedestal benchSeatingBench with planter – solid 2⅜ in European larchBench with planterSeatingGarden table – solid 2⅜ in European larchGarden tableSeatingTable and two benches – solid 2⅜ in European larchTable and two benchesSeatingSandbox with seating – solid 2⅜ in European larchSandbox with seatingFor kidsGarden steps – solid 2⅜ in European larchGarden stepsSlope & terrace

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Choose your climateBased on winter hardiness only.

Annual · Papaveraceae family

Corn poppy

Papaver rhoeas

Full sun 9 in–1 ft 5¾ in × 5⅞ in–11¾ in Flowers June–August Low maintenance
Flower colors Click a color

In short a 10-second read

SunFull sun
Size9 in–1 ft 5¾ in
spacing 9¾ in
FlowersJune–August
Care levelLow maintenance

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
dry to averageloamysandy

Watering

do not waterlogless when it rains

How much space it takes

Mature size.

The mature plant next to a person (69 in).

19¾ in3 ft 3⅜ in4 ft 11 in9 in–1 ft 5¾ inspread 5⅞ in–11¾ in
9 in–1 ft 5¾ in× spread 5⅞ in–11¾ in

Plant 9¾ in apart.

The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Typical for a temperate climate (four seasons). The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberSowing: JanuarySowing: FebruarySowing: MarchSowing: AprilSowing: MaySowing: JuneSowing: JulySowing: AugustSowing: SeptemberSowing: OctoberSowing: NovemberSowing: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersSowingFeeding
Now, in October: nothing to do — the next job is in March.
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

June–August · red, purple or white

Sowing

JanFebMarAprMayJunJulAugSepOctNovDec

direct sowing: March–April

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

April–May

Feeding

Nutrition.

Horn meal

up to 0.29 oz/sq ft a year, if the soil needs it · April–May

JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

What you will see

Clusters of tiny sap-sucking insects on young shoots, curled leaves, sticky honeydew and sooty mold.

When to look

Spring – summer

How to protect

  1. Prevention
    • Aphids are part of a healthy garden and food for predators; a healthy plant usually tolerates them.
  2. By handWipe or rinse off colonies and remove affected tips.
  3. BiologicalEncourage natural enemies (ladybirds, earwigs, birds).
Aphidspest · spring – summer

What you will see

Clusters of tiny sap-sucking insects on young shoots, curled leaves, sticky honeydew and sooty mold.

When to look

Spring – summer

How to protect

  1. Prevention
    • Aphids are part of a healthy garden and food for predators; a healthy plant usually tolerates them.
  2. By handWipe or rinse off colonies and remove affected tips.
  3. BiologicalEncourage natural enemies (ladybirds, earwigs, birds).
More about this problem

What you will see

Yellow to brown patches on the upper leaf surface, with a white, gray or purple coating underneath.

When to look

Summer – fall

How to protect

  1. Prevention
    • Plant thinly and control weeds for airflow; in a greenhouse avoid leaves staying wet for long.
  2. By handPick off and destroy affected leaves as soon as they appear; remove heavily affected plants.
Downy mildewsdisease · summer – fall

What you will see

Yellow to brown patches on the upper leaf surface, with a white, gray or purple coating underneath.

When to look

Summer – fall

How to protect

  1. Prevention
    • Plant thinly and control weeds for airflow; in a greenhouse avoid leaves staying wet for long.
  2. By handPick off and destroy affected leaves as soon as they appear; remove heavily affected plants.
More about this problem

What you will see

White powdery coating on leaves, stems and flowers; leaves may become distorted.

When to look

From spring onwards

How to protect

  1. Prevention
    • Destroy fallen infected leaves in fall; do not over-feed, and protect from drought (stress invites powdery mildew).
  2. By hand fallPrune out infected shoots early and destroy fallen leaves.
Powdery mildewsdisease · from spring onwards

What you will see

White powdery coating on leaves, stems and flowers; leaves may become distorted.

When to look

From spring onwards

How to protect

  1. Prevention
    • Destroy fallen infected leaves in fall; do not over-feed, and protect from drought (stress invites powdery mildew).
  2. By hand fallPrune out infected shoots early and destroy fallen leaves.
More about this problem

What you will see

Yellowing and wilting leaves, dieback of shoots.

When to look

Symptoms can develop rapidly in hot weather

How to protect

  1. Prevention
    • Do not carry soil on tools and shoes; control weeds.
  2. By handDig up a confirmed plant with its roots and destroy it; consider grassing over the area or a resistant replacement.
Verticillium wiltdisease · symptoms can develop rapidly in hot weather

What you will see

Yellowing and wilting leaves, dieback of shoots.

When to look

Symptoms can develop rapidly in hot weather

How to protect

  1. Prevention
    • Do not carry soil on tools and shoes; control weeds.
  2. By handDig up a confirmed plant with its roots and destroy it; consider grassing over the area or a resistant replacement.
More about this problem
Sources (5)

What to combine it with

Same needs, different flowering.

They share the same sun and soil and flower in other months — so the bed flowers for longer.

garden tulip

garden tulip

9⅞ in–1 ft 11⅝ in
✓flowers April–May
✓taller — for the back
garden chrysanthemum

garden chrysanthemum

11¾ in–2 ft 11⅞ in
✓flowers September–October
✓taller — for the back
catmint

catmint

1 ft 5¾ in–1 ft 11⅝ in
✓flowers May–September
✓taller — for the back

Frequently asked

Quick answers.

When does corn poppy flower?

In June–August; the flowers are red, purple or white.

When do I sow corn poppy?

In March–April (direct sowing).

Does corn poppy tolerate shade?

No, it needs full sun.

How much space does corn poppy need?

At maturity 5⅞ in–11¾ in wide and 9 in–1 ft 5¾ in tall; recommended spacing 9¾ in.

Aphids — what can you do?

Aphids are part of a healthy garden and food for predators; a healthy plant usually tolerates them. Wipe or rinse off colonies and remove affected tips.

Downy mildews — what can you do?

Plant thinly and control weeds for airflow; in a greenhouse avoid leaves staying wet for long. Pick off and destroy affected leaves as soon as they appear; remove heavily affected plants.

Sources (17) Checked 20 October 2026

Similar plants

Have a look at these too.

oriental poppy

Papaver orientale

1 ft 7⅝ in–3 ft 3⅜ in × 5⅞ in–1 ft 11⅝ in
Low maintenanceperennial
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