Students for Stewardship The Cork Board
← Back to the library

Barber's Diascia

Diascia barberae (dy-ASS-ee-ah BAR-ber-ee)

Family: Scrophulariaceae Non-native Herbaceous

Twinspur is a mat-forming perennial from southern Africa that grows 12 inches tall and 18 inches wide with pink blooms from spring to fall. In hot summer climates it may quit blooming in the heat of the summer. Shear the plant back to encourage fall blooms. They do best in climates with lower humidity. Twinspur prefers moist, organically rich, well drained soils and blooms best in full to part sun. Twinspur can be grown as an annual and does well in containers and hanging baskets. In the garden plant in borders, along walkways or in rock gardens. It will add many weeks of color to your garden.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 45 attributes.

How it fits the guild

Guild layer 4 - Herbaceous Optimal soil pH Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Annual; Perennial
Life cycle
Perennial
USDA zones
8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter
Soil pH
Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
12 inches-3 feet
NC region
Coastal
Growth rate
Medium
Maintenance
Medium
Canopy layer
4 - Herbaceous
Form & Appearance
Habit / form
Spreading
Texture
Medium
Foliage
Broadleaf Evergreen
Leaf color
Green
Leaf type
Simple
Leaf shape
Ovate
Leaf margin
Serrate
Leaf feel
Glossy
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
Up to 1 inch long glossy green heart-shaped leaves.
Flower color
Pink
Flower value
Long Bloom Season; Showy
Flower form
Raceme
Flower shape
Tubular
Flower size
< 1 inch
Flower detail
3/4 inch rose pink bloom with a prominent lip and a yellow throat with 2 rear spurs.
Bloom time
Fall; Spring; Summer
Wildlife & Ecology
Native status
Non-native
Origin
South Africa
Attracts
Bees; Butterflies
Landscape Use
Landscape location
Container; Hanging Baskets; Rock Wall; Walkways
Landscape theme
Rock Garden
Design feature
Border
Garden tags
#long bloom time #showy flowers #rock garden #border planting #spreading #pink flowers #hanging baskets #full sun tolerant #container plant #partial shade tolerant #perennial #annual

Planted at Hunnicutt

Nobody’s planted this one yet.