Digger's speedwell (Parahebe perfoliata) pair-ah-HEE-bee per-foe-lee-AY-tah Synonyms:  Veronica perfoliata Genus:  Parahebe This native of Australia has blue-green perfoliate leaves (similar to some eucalyptus) and blue-lilac flowers on somewhat floppy stems. Digger's speedwell likes a hot location and will ramble over walls or grow through shrubs beautifully. Noteworthy Characteristics:  Casual habit. Can take hot conditions and poor soil. Attractive, lax spikes of blue flowers in late summer. Care:  Needs well-drained, poor to moderately fertile soil in full sun. Stake if desired. Propagation:  Sow seed in containers in a cold frame as soon as ripe or in spring. Take semi-ripe cuttings in early or mid-summer. Problems:  Slugs may eat new growth.

Overview

Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Pace Moderate Grower Light Full Sun Only Moisture Medium Moisture Maintenance Moderate Characteristics Showy Flowers Bloom Time Late Summer, Summer Flower Color Blue Foliage Color Evergreen Uses Beds and Borders Style Rock Garden Seasonal Interest Summer Interest Type Perennials