Place 2 base plates with 5' conduit poles 4' apart. Set the Precision Air to 10.0 and inflate 2 16" balloons to 15". Tie the balloons together to make a "duplet". Repeat. Twist the 2 duplets to form a balloon quad and push the quad onto the bottom of the pole to complete the first row. Repeat for the other pole.

Continue working from the bottom up on each pole graduating the balloon size as follows:

Cover the remainder of the poles with 5" balloons sized to 4".

Cover a 12' aluminum rod with quads of 5" balloons inflated to 4". Leave 18" at each end of the aluminum rod uncovered. Insert the aluminum rod into the conduit poles to form the arch.

Open the branches of the wisteria bush.

Inflate 5" balloons to random sizes smaller than 3" and tie into duplets. Twist the duplets onto the wisteria branches. Place 3-4 duplets onto each branch.
 

Leave two branches empty, one on each side of the bush, to wrap into the top of the arch to help secure the wisteria in place. Also, use uninflated 260Q balloons to tie the wisteria bush to secure it into place.

For the finishing touch, drape 54" wide tulle down each side of the arch and around the base to soften the texture of the balloons. Use 5" Pearl Lavender balloons inflated to random sizes under 3" and tie them into clusters of 2, 3 and 5 balloons. Wrap small pieces of silk ivy into the cluster. Tie each cluster to the pole at the base of the column with an uninflated 260Q balloon. The elasticity of the 260Q allows you to adjust the placement of the clusters.