Annual
Diascia
Diascia
Varieties We Carry
Trinity Grace WhiteDiascia barberaeTrinity SunsetDiascia barberae
Sizes & Pricing
1 galFrom$7.95
Fresh this week. Last restocked Mar 4.
LightFull Sun, Part Sun, Part Shade
WaterModerate
Mature size6-12 inches × 12-18 inches
About Diascia
Diascia (Twinspur) is a cool-season annual in NE Florida, bearing delicate pink, coral, or salmon spurred flowers on mounding stems from fall through spring. Plant in October; provide afternoon shade and excellent drainage for best performance before summer heat ends the season. Starting at $7.95.
Plant details
- Bloom Season
- Spring, Fall, Winter
- Flower Color
- White, Orange, Pink
- Growth Rate
- Moderate
- Foliage
- Annual
- Soil
- Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
J
F
M
A
M
JNow
J
A
S
O
N
D
This monthGood windowOther months
Seasonal care
Bloom season.
Active growing season.
Ideal planting window.
Bloom season. Retains foliage through winter.
Care essentials
Light
Full sun to part shade; in NE Florida, afternoon shade extends the bloom season by reducing heat stress. Aim for at least 4-6 hours of direct morning sun for best flowering.
Water
Keep soil consistently moist but well-drained; perfect drainage is non-negotiable as Diascia is intolerant of waterlogged conditions. Water at the base to keep foliage dry and reduce disease pressure in Florida's humid climate.
Soil & Fertilizer
Plant in moderately fertile, well-drained soil with pH 6.0–6.5. Feed with a balanced fertilizer every 4–6 weeks during the cool growing season to sustain continuous blooming.
Similar needs
Ageratum
Shares 5 of the same needs: full sun, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $6.95Same conditions
Alyssum
Shares 5 of the same needs: full sun, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $6.95Same conditions
Amethyst Flower
Shares 5 of the same needs: shade, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $7.95Same conditions
Confetti Garden
Shares 5 of the same needs: full sun, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $7.95Same conditions
Edging Lobelia
Shares 5 of the same needs: full sun, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $6.95Same conditions
Pansy
Shares 5 of the same needs: full sun, moderate water, loam, zone 9a hardiness, and pollinator-friendly.
From $3.50Same conditions
You may also like
Common questions
Is Diascia a good plant for St. Augustine?
Diascia is a annual for Zone 9b coastal Florida gardens, reaching 6-12 inches × 12-18 inches.
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.