Diascia (Twinspur)

Diascia (Twinspur)

Diascia is a genus of about 70 species in the family Scrophulariaceae, native to southern Africa.
Diascia produces small, dark green leaves and small, but profuse flowers. The colorful, shell-like flowers are borne in loose clusters from spring to autumn. They are tubular and lipped, each with two spurs on the rear of the flower. Diascia is an extremely popular ornamental plant worldwide. It is great for rockeries, containers, and borders.

Name meaning

The genus name is derived from the Greek words “di” (“two”) and “askos” (“bladder” or “sac”), referring to the pair of oil-containing spurs on the back of each flower.

The common name “Twinspur” also comes from this distinctive feature.

Diascia symbolism

Diascia is a symbol of fidelity and friendship.

Interesting facts about Diascia

Symbiotic Relationship with Rediviva Bees

Many plants have developed a special relationships with other organisms, and so these plants have evolved a relationship with a small group of bees.
Diascia species are pollinated by a specific genus of oil-collecting bees – Rediviva. Diascia has two long spurs on the back of each flower that contain oil-producing glands to entice bee pollinators. The spurs can vary in length in various species of Diascia, which has everything to do with their specific pollinator. The bees must introduce their especially equipped forelegs into the paired spurs of Diascia, in order to collect oil from inside the two spurs. If they succeed in doing this, they will effectively hug the reproductive parts of the flower and effect pollination.

Diascia Plant Data

Plant Type:

Annuals, Perennials

Color:

The flowers come in shades of pink, purple, orange, and white, each with a contrasting yellow throat.

Hardiness Zones:

7-11

Blooms in:

Spring, Autumn, Summer

Height:

The plant grows between 30 cm (1 ft) and 60 cm (2 ft) in height.

Soil needs:

Diascia grows best in soil that is fertile, moist, well drained and slightly acidic, with a pH range of 5.5 to 6.5.

Sun needs:

Full sun, Partial sun

Water needs:

avarage

Maintenance:

low

Related flowers
Buddleia

Buddleia (Butterfly Bush)

Nemesia

Nemesia

Verbascum

Verbascum (Mullein)