Pelargonium peltatum
Pelargonium peltatum
Ivy Geranium
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Taxonomy
Family Geraniaceae · Genus Pelargonium
Description
Pelargonium peltatum, known as ivy geranium, is a sun-loving, trailing bloomer perfect for hanging baskets and window boxes. Its glossy ivy-like leaves and cascades of colorful flowers light up patios from spring through fall. Easy-going and forgiving, it thrives with good drainage, regular deadheading, and bright light.
Common Names
Ivy GeraniumTrailing GeraniumIvy-leaved PelargoniumCape Ivy Geranium
Context
nativeRegion
South Africa (Western and Eastern Cape)
usdaZones
10–11 (grown as an annual or seasonal container plant elsewhere)
companionPlants
Bacopa (Sutera), Lobelia, Calibrachoa, Verbena, Petunia, Sweet Alyssum, Helichrysum petiolare (Licorice Plant), Dichondra ‘Silver Falls’
culturalUses
Widely used in hanging baskets, window boxes, balcony displays, and sunny borders for long-season color; iconic in Mediterranean-style plantings.
Care
Care Requirements
LightFull sun to bright partial sun; provide afternoon shade in very hot climates for best bloom.
WateringWater when the top 1–2 inches of soil are dry; keep evenly moist but never soggy. Slightly drought tolerant once established.
SoilLight, fast-draining mix (potting mix with added perlite/bark). pH 6.0–7.0.
FertilizerFeed every 2–4 weeks in spring–summer with a balanced or bloom-boosting fertilizer at half strength.
HumidityAverage household/outdoor humidity; ensure good airflow to prevent botrytis.
TemperaturePrefers 60–75°F (16–24°C). Protect below 40°F (4°C). Not frost hardy.
Growth & Life Cycle
HabitTrailing, cascading, semi-succulent stems; tender perennial in frost-free climates.
Mature Size12–18 in tall; trails/spreads 24–48 in (30–45 cm tall; 60–120 cm trailing).
Growth RateFast
BloomingHeavy bloom from spring to fall; nearly year-round in mild climates. Colors range from white and pink to red and violet.
DormancyNo true dormancy; growth slows in winter. Keep cool and bright, frost-free.
Propagation
MethodsStem cuttings (softwood or semi-ripe), Seed, Simple layering
DifficultyEasy
Best SeasonSpring to early summer (late summer cuttings also root well).
Maintenance & Notes
PruningPinch tips to encourage branching; deadhead spent clusters. Shear lightly midseason to refresh and rebloom.
RepottingRepot every 1–2 years in spring into a fresh, well-draining mix; choose a pot with ample drainage.
Pests & DiseasesWatch for aphids, whiteflies, spider mites, and mealybugs. Diseases include botrytis, rust, bacterial blight, and root rot from overwatering.
ToxicityMildly toxic to pets (cats/dogs) if ingested; may cause GI upset and dermatitis. Sap can irritate sensitive skin.
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