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| Category: Shrub |
| Family: Polygalaceae (Milkworts) |
| Origin: South Africa (Africa) |
| Evergreen: Yes |
| Flower Color: Purple |
| Bloomtime: Summer/Fall |
| Height: 4-6 feet |
| Width: 3-5 feet |
| Exposure: Sun or Shade |
| Summer Dry: Yes |
| Irrigation (H2O Info): Low Water Needs |
| Winter Hardiness: 10-15° F |
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Polygala virgata 'Portola' (Purple broom) - A fast growing shrub up to 6 ft. tall, with long, narrow leaves and spikes of purple sweetpea-like blossoms. Tends to be very upright growing and bare at the base - best planted in groups to form an unusual but showy thicket. Tolerates dry conditions and frost once established. Sun or part shade. Root hardy to 10-15 F. Our current plants are a selection we made from crops that we originally grew from seed. To distinguish this selection from seedlings we have named it 'Portola' for the garden on Portola Road where one of our plants was planted and from which all subsequent cuttings were taken. This selection produces its leaves on shorter internodes and makes a fuller looking and much more attractive plant then the typical form of the species. The name Polygala is Latin from the Greek word 'polugalon' for "much milk" because of the belief that cows grazing on milkwort increased their milk production.
This description is based on research and observations of this plant as it grows in our nursery, in our nursery garden and in other gardens that we visit. We also incorporate comments received and appreciate getting feedback of any kind from those who have any additional information about this plant, particularly if they disagree with what we have written or if they have additional cultural tips that would aid others in growing Polygala virgata 'Portola'.
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