Clematis tanjutica 'Helios'

Raised at the Boskoop Research Station, Netherlands.  Open-pollinated seedling found by Helios.  Released in 1968. 

Flowering period:  Late spring to early fall.

Habit:  Moderately fast growing deciduous climbing vine.

Height:  6 ½'.

Exposure:  Sun to part shade. 

Site:  Tolerates most garden soils.  Needs sharp drainage.

Recommended use:  Grow on a trellis, arbor, or an obelisk.  Separately or in combination with other plants.  Good companion plant for roses. 

Pruning: (Group 3)  This is perhaps the easiest group to prune.  It will bloom on the current season's growth every year.  Pruning is quite simple, cut every winter down to 12-18 inches above the soil. 

Watering:  Like regular water.  Soil should be moist but not wet. 

Zones:  4-9.