Flowering Plants Suitable For An Obelisk On Alkaline Soil.
Flowering plants suitable for an obelisk on alkaline soil:
Campsis x tagliabuana ‘Mme Galen'(Trumpet creeper).
Asarina antirrhiniflora (Snapdragon vine).
Celastrus scandens (American bittersweet).
Lathyrus latifolius (Everlasting pea).
Lathyrus grandiflorus (Everlasting pea).
Hydrangea anomala subsp. petiolaris (Climbing hydrangea).
Clematis jackmanii species.
Most of these plant would loose the leaves in winter and could be pruned back to control the size and to maintain the flowering so we would recommend planting crocus and Colchicum autumnale under the base of the obelisk for winter interest.
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