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This species self-sows weedily where it is happy. It is an aggressive invader of natural areas here in Massachusetts, whe...Read Morere sale, trade, transporting, or planting this species is illegal.
Superfection™ 'Supzam' is a male cultivar with an upright, pyramidal form.
This species self-sows weedily where it is happy.
It is an aggressive invader of natural areas here in Massachusetts, whe...Read More
Superfection™ 'Supzam' is a male cultivar with an upright, pyramidal form.