Penstemon whippleanus

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Whipple's Penstemon

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Plantaginaceae

Penstemon is a genus in the family Plantaginaceae.  It is a large genus native to N-America. They are usually low growing herbaceous plants or sub-shrubs with irregularly shaped flowers. They prefer full sun and many are well suited to rock gardens.

Propagation:

Division in spring.

Seed - sown in January.

Seed just covered and stored at 20°C (68°F) until germination. If there is no germination in 3 - 4 weeks, a 2-4 week cooling period can be helpful before returning to 20°C (68°F) until germination.

Or

Seed sown in fall and stored outside until spring, then brought to 20°C (68°F) for germination.

Needs well drained soil and a sunny spot.

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