Robinia Purple Robe™
Purple Robe Locust
Robinia pseudoacacia 'Purple Robe'
Robinia × ambigua 'Purple Robe'
Native to (or naturalized in) Oregon:
- Deciduous tree, 30-50 ft [9-15 m] tall, ascending, open. Described as thornless, but some plants offered as Purple Robe have typical R. pseudoacacia thorns. Leaves, 17-21 leaflets, bronze- red at first then bronze-green in summer. Flowers large, dark rose-pink, appear before those of the species.
- Sun Drought tolerant
- Hardy to USDA Zone 3 Apparently the result of an intentional cross by William Silva between R. ambigua 'Decaisneana' and R. hispida 'Monument'. Plant patent (PP2454, now US-PP02454-P) granted in 1964. The patent states that this tree produces the usual pea pod-type fruit, but no seeds. I have no verification of this "less invasive" characteristic. Often sold as Robinia pseudoacacia 'Purple Robe'.
- Corvallis: NE corner of Walnut Blvd. and Kings Blvd.