Mashua, Perennial Nasturtium

Tropaeolumtuberosum

Genus
Tropaeolum (tro-PEE-oh-lum)
Species
tuberosum (too-ber-OH-sum)
Synonym
Sun Exposure
Full Sun
Foliage
Grown for foliage
Herbaceous
Smooth
Height
10-12 ft. (3-3.6 m)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
N/A
Bloom Color
Orange
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Vines and Climbers
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; sow indoors before last frost
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Albany, California

San Francisco, California

Brookings, Oregon

Harbor, Oregon

Sweet Home, Oregon

Salt Lake City, Utah

Grand Mound, Washington

Rochester, Washington

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Gardener's Notes:

1
positive
2
neutrals
0
negative
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R
Rochester, WA | December 2010 | positive

Mashua grew really well here. The plant I had grew vigorously and vined high up the apple tree it was next to. A trellis or an objective ...Read More

M
Erwin, TN (Zone 7a) | February 2003 | neutral

A close relative of the common nasturtium, all parts are said to be edible. Resistant to many insects, frost tolerant, high yielding. C...Read More

B
B
Baa
| October 2001 | neutral

A tuberous perennial climber from South America.

Has greyish green, rounded, lobed leaves. Bears small, solitary, cup sha...Read More

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