Skip to main content
Amethyst Flower (Browallia speciosa), Annual
Annual

Amethyst Flower

Browallia speciosa

Varieties We Bring In

Endless FlirtationBrowallia speciosaEndless Illumination PWBrowallia speciosa
Sizes & Pricing
1 galFrom$7.95

Last received Jul 19, 2026.

We bring this in seasonally, so what is on the lot changes week to week. A received date shows when it last came in, not that it is here today.

Call (904) 471-0440 to confirm this plant and size before you make the trip.

LightPart Sun, Part Shade
WaterModerate
Mature size1-1.5 feet × 1-1.5 feet

About Amethyst Flower

Amethyst Flower (Browallia speciosa) is a South American annual producing star-shaped blooms in vivid violet-blue and white, valued for its performance in shade where few flowering annuals excel. Its bushy, compact form suits hanging baskets, windowboxes, and shaded container gardens. Starting at $7.95.

Plant details

Bloom Season
Spring, Summer, Fall
Flower Color
White, Purple, Blue
Growth Rate
Moderate
Foliage
Evergreen
Soil
Sandy, Loam, Well-drained

Best planting months

Recommended forZone 9b · St. Augustine, FL
J
F
M
A
M
J
J
A
SNow
O
N
D
This monthGood windowOther months

Seasonal care

Bloom season. New foliage emerges. Good planting window.

Care essentials

Light

Amethyst Flower thrives in partial shade and tolerates full shade in NE Florida — one of few flowering annuals that performs reliably where sunlight is limited. Protect from harsh afternoon sun to prevent leaf scorch and extend bloom.

Water

Keep soil evenly moist but well-drained; avoid overwatering, which reduces flowering and encourages foliage at the expense of blooms. In NE Florida's warm season, check soil moisture every 2–3 days and water when the top inch is dry.

Soil & Fertilizer

Plant in well-drained sandy or loamy soil amended with compost to retain some moisture. Apply a balanced slow-release fertilizer at planting; avoid excess nitrogen. In containers, feed with a diluted balanced liquid fertilizer every 4–6 weeks during the growing season.

Similar needs

You may also like

Common questions

Is Amethyst Flower a good plant for St. Augustine?

Amethyst Flower is a annual for Zone 9b coastal Florida gardens, reaching 1-1.5 feet × 1-1.5 feet.

Care information verified from

Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.