Clematis make a superb adornment for arches. Consider using two planted either side for full cover
1
Strong cane leading shoots to main framework of archway
2
Top of rootball at least 5cm below soil level
3
Loosen rootball and Plant in mixture of loam, peat or peat substitute
4
Line hole base with well-rotted garden compost or well rotted manure
5
Hole width and depth approximately 45cm x 45cm
6
Base of plant at least 15 cm from main arch vertical
7
Consider providing shade to roots with low growing shallow rooted plants