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Purple Penstemon Flower


Purple Penstemon Flower

Penstemon


Penstemon is a member of the foxglove (Scrophulariaceae) family, presented by 250 of perennials and sub shrubs, that are very different and range tiny carpeting plants to rapid growers that can exceed 4 ft. (1.2 m) tall. Penstemon is mostly found in America from Alaska to Guatemala. Most develop into a mounding clump of erect stems with simple linear to lance-shaped leaves. Spikes of 5-lobed, foxglove-like flowers open at the stem tips in summer. In recent couple of years became available many garden varieties with increased hardiness. Native Americans used some of these species to control stomach disorders but primarily for their analgesic and styptic properties.


Top Tip

Penstemon cultivars
are mostly
good all-round performers,
but are
particularly suited
to border planting,
rock gardens, or
"wild" gardens.

Cultivation


Penstemon require a moist well-drained soil and is very well grown in sunny or half-shaded places. The species from southwestern USA and also Alpine species prefer gritty soil. There are also hard types that can be cultivated in cold areas. The garden types propagate by division or from cuttings, and the usual species can be raised from seed.


Name

Flower color

Blooming Season

Flower Fragrance

Plant Height

Plant Width

Hardiness Zone

Frost Tolerance

Penstemon ‘Blackbird’

Dark purple

Summer

No

36 in
90 cm

36 in
90 cm

6-10

Yes

Penstemon eatonii

Carlet

Spring to summer

No

12-36 in
30-90 cm

8-24 in
20-60 cm

4-9

Yes

Penstemon heterophyllus

Lavender-pink to bright blue

Summer

No

12-20 in
30-50 cm

8-12 in
20-30 cm

8-10

Yes

Penstemon ‘Maurice Gibbs’

Purple-red

Spring to autumn

No

36 in
90 cm

8-16 in
20-40 cm

6-10

Yes

Penstemon pinifolius

Orange-red

Late spring to mid-summer

No

6-16 in
15-40 cm

18 in
45 cm

8-10

Yes

Penstemon ‘Rich Ruby’

Purple-red

Summer

No

36 in
90 cm

8-16 in
20-40 cm

6-10

Yes