Sinningia polyantha x conspicua

Jim Steuerlein crossed this species with Sinningia conspicua and got this attractive flower.  The plant is tall, however, which detracts from its suitability for indoor gardening and can make it somewhat top-heavy.

The appeal of these flowers suggests that Sinningia conspicua should be crossed with more compact relatives of Sinningia polyantha, such as Sinningia rupicola or Sinningia douglasii.

This picture shows the plant in November 2017.  It grew more compactly in this year.

The timing was something of a mystery.  Sinningia polyantha blooms in spring and early summer.  Sinningia conspicua blooms in late summer and early autumn.  In 2017, the hybrid came into bloom in mid-autumn.



Feature table for Sinningia polyantha x conspicua

Plant Description

Growth Indeterminate
Habit Upright stem(s).
Leaves Green, hairy
Dormancy Stems fully deciduous

Flowering

Inflorescence Flowers borne on a extended axis
Season Blooms in autumn
Flower Pinkish corolla with darker streaks. Corolla limbs larger like S. conspicua.

Horticultural aspects

Hardiness Has survived 30F (-1C) in my yard
Recommended? Yes.

Botany

Taxonomic group Both parents are in the Dircaea clade.