Sticky Geranium (Geranium viscosissimum) in the Geraniums Database

Common names:
Give a thumbs up Sticky Purple Geranium
Give a thumbs up Geranium
Give a thumbs up Sticky Geranium
Give a thumbs up Sticky Purple Crane's-bill
Give a thumbs up Sticky Wild Geranium

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Plant Height: 16 to 30 inches (40 to 90cm)
Plant Spread: 18 to 24 inches (to 60cm)
Leaves: Good fall color
Other: sticky glandular hairs densely cover the stems and leaves; leaves are deeply palmately lobed into 5 to 7 sharply toothed divisions; foliage turns red in the fall
Fruit: Dehiscent
Other: seed pods mature indeterminately and shatter easily
Fruiting Time: Summer
Late summer or early fall
Flowers: Showy
Other: flowers have five petals with purple veins and soft hairs on the lower half
Flower Color: Pink
Bloom Size: 1"-2"
Flower Time: Late spring or early summer
Other: blooms continuously May through August with only 10 to 20 inches of annual precipitation
Underground structures: Taproot
Suitable Locations: Xeriscapic
Uses: Groundcover
Will Naturalize
Wildlife Attractant: Bees
Resistances: Drought tolerant
Propagation: Seeds: Stratify seeds: sow in-situ in fall or cold-moist stratified for at least 30 days
Scarify seeds: fine sandpaper or 5-10 second hot water bath then soak in cold water for 24 hours
Sow in situ
Can handle transplanting
Other info: sow seeds at depth of 1/4 inch; 55,000 seeds per pound; self-seeding but germination may be sporadic
Propagation: Other methods: Cuttings: Stem
Other: semi-ripe cuttings during the late summer when growth has slowed and plant stems have become firmer
Pollinators: Hoverflies
Moths and Butterflies
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Tolerates poor soil


Photo gallery:

Posted by HighDesertNatives (northeastern NV - Zone 5a) on Feb 16, 2019 10:25 PM

Like many other plants with sticky leaf surfaces, sticky geranium is protocarnivorous; it is able to dissolve insects that become trapped on its leaf surface and absorb the nitrogen derived from this protein. This characteristic helps G. viscosissimum survive and thrive in nutrient-poor environments.

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Discussion Threads about this plant
Thread Title Last Reply Replies
Plant ID by fox22 Jun 17, 2020 3:27 PM 13
My poor yard. by Sshadai May 31, 2018 6:01 PM 10
What's the species? by SpringGreenThumb Oct 1, 2017 7:08 PM 16

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