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Penstemon isophyllus is a fast growing species Penstemon forming a dense shrub to 1m x 1m. Massed spikes of scarlet red flowers spring, summer and early autumn. Looks spectacular in a massed planting or as an informal low hedge. Can be pruned after flowering to maintain shape. Full sun part shade. Most soils. Drought and frost hardy but summer water recommended.
Conditions | Drought Hardy, Frost Tolerant |
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Height | Under 1m |
Position | Full Sun |
Region | Cold, Dry, Sub-Tropical, Temperate |
Soil | Clay, Loam |
Watering | light to medium with some summer water |