Photo by Melody

PlantFiles: Nasturtium
Tropaeolum majus 'Tip Top Mahogany'

Family: Tropaeolaceae
Genus: Tropaeolum (tro-PEE-oh-lum) (Info)
Species: majus (MAY-jus) (Info)
Cultivar: Tip Top Mahogany

One vendor has this plant for sale.

6 members have or want this plant for trade.


12-18 in. (30-45 cm)

9-12 in. (22-30 cm)

Not Applicable

Sun Exposure:
Sun to Partial Shade


Bloom Color:
Maroon (Purple-Brown)

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
Average Water Needs; Water regularly; do not overwater

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:
Unknown - Tell us

Propagation Methods:
From seed; direct sow after last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By Weezingreens
Thumbnail #1 of Tropaeolum majus by Weezingreens

By Weezingreens
Thumbnail #2 of Tropaeolum majus by Weezingreens

By Weezingreens
Thumbnail #3 of Tropaeolum majus by Weezingreens

By Weezingreens
Thumbnail #4 of Tropaeolum majus by Weezingreens

By ineedacupoftea
Thumbnail #5 of Tropaeolum majus by ineedacupoftea

By synsfun
Thumbnail #6 of Tropaeolum majus by synsfun

By DaylilySLP
Thumbnail #7 of Tropaeolum majus by DaylilySLP

There are a total of 10 photos.
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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive synsfun On Apr 9, 2012, synsfun from Lake Charles, LA (Zone 9a) wrote:

When I transplant my cantaloupes in a raised bed, I planted some of the nasturtium seeds along the outskirts of the bed. As you can tell from the picture, they are doing great. I'm proud of my little guys.

Positive grrrlgeek On Sep 27, 2009, grrrlgeek from Grayslake, IL (Zone 5a) wrote:

These grew enormous when direct seeded with cucumbers. Largest nasturtium leaves I've ever seen! Probably because they got some fertilizer with the cukes. They took their time blooming but are now going nuts. Some of mine came up the deeper color and some a brighter red. Large flowers with long stems and a nice fragrance up close. I already bought another packet, but I think I'll save seeds from the darker ones next year and see what I get.

Positive Weezingreens On Aug 19, 2002, Weezingreens from Seward, AK (Zone 3b) wrote:

I first purchased Tip Top Mahogany seed in the spring of 2000. I was so impressed with these unusual nasturtiums that I have purchased more every year since. The leaves are a remarkable lime green, while the flowers are a deep mahogany red. As with all nasturtiums, the leaves and flowers are edible and quite spicy.


This plant has been said to grow in the following regions:

Grayslake, Illinois
Lake Charles, Louisiana

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