Tropaeolum, Nasturtium 'Cobra'

Tropaeolummajus

Genus
Tropaeolum (tro-PEE-oh-lum)
Species
majus (MAY-jus)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
N/A
Bloom Color
Scarlet (dark red)
Bloom Time
Blooms all year
Other Details
Category
Annuals
Herbs
Tropicals and Tender Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Dark/Black
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)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

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

Fernandina Beach, Florida

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Gardener's Notes:

1
positive
0
neutral
1
negative
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J
Lawtey, FL | May 2011 | positive

Had about average germination for nasturtiums (>50%). Plants are doing well. Blooms are beautiful against blackish leaves.

D
West Valley City, UT (Zone 6b) | October 2010 | negative

As many noted in the Products and Sources forum for Thompson and Morgan, the germination rate for "Cobra" is abysmal. I planted 15-21 see...Read More

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