An extreme close up of Black Trumpet salpiglossis bloom on a white background.

Trio of Black Trumpet Salpiglossis blooms on a white background.

Close-up Black Trumpet Salpiglossis on white background.

Black Trumpet Salpiglossis top view on light background

Salpiglossis Seeds,
Black Trumpet

55 ReviewsSKU: #FL341Min. seed count: 100

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$3.00

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Description

These bewitching blooms run from burgundy to deep obsidian with a stark golden eye in the center. The effect is a gothic bloom with depth and personality. Perfect to play off of stark white or to incorporate into an all-black flower garden. The sturdy stems make this an excellent cut flower to add drama to arrangements. This half-hardy annual is 19 inches tall and 11 inches wide. A rare color of this delightful plant.

Growing Tips: Sow indoors 6-8 weeks before last frost, gently firming soil over the tiny seeds. Set transplants out after frost. Plant in full sun/filtered shade. Thrives in late spring or cool-summer conditions. Deadhead regularly.

Plant Details

Botanical Name: Salpiglossis sinuata
Life Cycle: Half-Hardy Annual
Sun Requirement: Full sun
Days to Germinate: 14–30
Days to Maturity: 80–90
Planting Depth: ¼ in.
Plant Spacing: 12–18 in.
Ideal Temperature: 70–75°F
Frost Hardy: No

When to Grow

Black Trumpet is the fastest of our painted tongues to flower, reaching bloom in 80 to 90 days, so either start it indoors 6 to 8 weeks before your last frost for the longest season of color or direct seed outdoors after frost has passed. Surface sow and cover the seed with a thin layer of soil or cardboard until it germinates, which takes 14 to 30 days at 70 to 75 F, since the seed needs darkness. This half-hardy annual takes no frost, so wait until danger has passed to set plants out. It is the widest-growing of these four, so give each plant 12 to 18 inches in full sun to filtered shade.

How to Sow and Plant

Seeds germinate in 14-21 days.
Surface sow seeds but cover either with a layer of soil or cardboard until just germinated, as the small seeds need darkness in order to germinate.
Start indoors 10-12 weeks before last frost or direct seed outdoors after last frost.
Ideal germination temperature is 70-75 F.

How to Grow

Prefers full sun and mild summer weather; they cannot handle extreme heat and humidity.
A fairly drought-tolerant plant; do not over water.
Space plants 9-12 inches apart.
Provide rich, well-drained soil.
Deadhead to encourage continued blooming.

PESTS/SPECIAL CONSIDERATIONS

A fairly pest-free plant, but sometimes bothered by aphids.
Treat aphids with organic insecticidal soap.

How to Save Seeds

Seeds are quite small and contained within a capsule.
Harvest capsules when brown and dry, before the capsules shatter.

FAQ

How much room does each plant need?

Space plants 12 to 18 inches apart. They finish at about 19 inches tall and 11 inches wide, in full sun to filtered shade with rich, well-drained soil.

Is Black Trumpet a good cut flower?

Yes. Its sturdy stems make it an excellent cut flower that adds drama to arrangements. Deadhead regularly to encourage continued blooming.

What do the flowers actually look like?

The blooms run from burgundy to deep obsidian with a stark golden eye at the center, a gothic effect that works against stark white or in an all-black flower garden.

Customer reviews

5 / 5 5 Reviews

What gardeners are saying

Dark velvet trumpets: Dramatic burgundy-black blooms with a velvety sheen.
Good in containers: Sturdy plants at a tidy height; happy even in an 8-inch pot.
Easy to start: Good germination, winter sown or direct in planters.
Few problems: Not prone to pests or disease.