Botanical Name: Forsythia 'Courtasol'
Description: This ground-cover type Forsythia from France has a compact, ground-hugging habit, excellent for mass plantings.  It blooms with a lemon-yellow flower in early spring, prefers full sun to light shade, and moist, well-drained soils - it is not tolerant of dry soils.  The plant itself is hardy to zone 4.  However, the flower buds will need adequate snow cover in zone 4 for consistent spring bloom.