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Climber · Vitaceae family

Boston ivy

Parthenocissus tricuspidata

Full sun to shade 9.2–18.3 m × 1.5–3.1 m Flowers June–July to −34 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun to shade
Size9.2–18.3 m
spacing 1.5 m
FlowersJune–July
PlantingMarch–April, October–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

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

Sun

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

Soil

tolerates any pH
acidicneutralalkaline
dry to averagenot fussy about soil

Watering

less when it rains

Frost

−34 °C
no winter protectionleafless in winter

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m11 m12 m13 m14 m15 m16 m17 m18 m9.2–18.3 mspread 1.5–3.1 m
9.2–18.3 m× spread 1.5–3.1 m

Plant 1.5 m apart.

Reaches maturity in about 5–10 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlanting
Now, in October: a good time for planting (container plant). · watch for vine weevil.
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

June–July · green or white

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–April, October–November

Feeding

Nutrition.

No feeding

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

Fine pale speckling of leaves, tiny mites and fine webbing on the undersides; leaf drop in severe attacks.

When to look

Outdoors in summer, especially in hot, dry weather

How to protect

  1. Prevention
    • Avoid hot, dry and overcrowded spaces; remove weeds and plant debris for winter.
  2. By handRegularly misting plants with water reduces the risk but is not enough on its own; remove heavily affected plants.
  3. BiologicalPredatory mite Phytoseiulus persimilis.
Two-spotted spider mitepest · outdoors in summer, especially in hot, dry weather

What you will see

Fine pale speckling of leaves, tiny mites and fine webbing on the undersides; leaf drop in severe attacks.

When to look

Outdoors in summer, especially in hot, dry weather

How to protect

  1. Prevention
    • Avoid hot, dry and overcrowded spaces; remove weeds and plant debris for winter.
  2. By handRegularly misting plants with water reduces the risk but is not enough on its own; remove heavily affected plants.
  3. BiologicalPredatory mite Phytoseiulus persimilis.
More about this problem
Vine weevil

Vine weevil

Otiorhynchus sulcatus
pest
More about this problem

What you will see

Adults notch the leaf edges; white larvae eat the roots, mainly in containers, and the plant wilts.

When to look

JanFebMarAprMayJunJulAugSepOctNovDec
September–March

How to protect

  1. Prevention
    • Check container plants often; look for notches on leaves.
  2. By handCollect adults in the evening by torchlight; when repotting, remove larvae from the roots.
  3. BiologicalBiological control (nematodes) — suitable for strawberries in containers.
Vine weevilpest · September–March

What you will see

Adults notch the leaf edges; white larvae eat the roots, mainly in containers, and the plant wilts.

When to look

JanFebMarAprMayJunJulAugSepOctNovDec
September–March

How to protect

  1. Prevention
    • Check container plants often; look for notches on leaves.
  2. By handCollect adults in the evening by torchlight; when repotting, remove larvae from the roots.
  3. BiologicalBiological control (nematodes) — suitable for strawberries in containers.
More about this problem

What you will see

Rotting roots, white mycelium under the bark, black bootlaces (rhizomorphs) in the soil, sudden death; mushrooms in autumn.

When to look

Summer – autumn

How to protect

  1. Prevention
    • Choose species that honey fungus rarely attacks (e.g. Vaccinium).
  2. By handA deep barrier (45 cm) of rubber sheeting in the soil blocks the bootlaces; regular deep cultivation breaks them.
Honey fungusdisease · summer – autumn

What you will see

Rotting roots, white mycelium under the bark, black bootlaces (rhizomorphs) in the soil, sudden death; mushrooms in autumn.

When to look

Summer – autumn

How to protect

  1. Prevention
    • Choose species that honey fungus rarely attacks (e.g. Vaccinium).
  2. By handA deep barrier (45 cm) of rubber sheeting in the soil blocks the bootlaces; regular deep cultivation breaks them.
More about this problem
Sources (4)

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.

Frequently asked

Quick answers.

When does Boston ivy flower?

In June–July; the flowers are green or white.

Does Boston ivy tolerate shade?

Yes, it tolerates full shade.

How much space does Boston ivy need?

At maturity 1.5–3.1 m wide and 9.2–18.3 m tall; recommended spacing 1.5 m.

Two-spotted spider mite — what can you do?

Avoid hot, dry and overcrowded spaces; remove weeds and plant debris for winter. Regularly misting plants with water reduces the risk but is not enough on its own; remove heavily affected plants.

Vine weevil — what can you do?

Check container plants often; look for notches on leaves. Collect adults in the evening by torchlight; when repotting, remove larvae from the roots.

Sources (18) Checked 24 October 2026

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