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Penstemon Cobaea

Penstemon Cobaea Care

Penstemon Cobaea

Other names: Prairie Beardtongue

Penstemon Cobaea main

Penstemon Cobaea 0

Penstemon Cobaea 1

What is the plant

Penstemon cobaea is a clump-forming, Missouri native perennial which occurs on prairies, limestone glades and rocky bluffs. Typically grows 1-2.5' tall. Typically grows 1-2.5' tall. Features loose, terminal panicles of white to violet to deep purple, 2" long, tubular flowers atop erect, rigid, downy stems.

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Humidity

Normal

Lighting

Full Sun

Temperature

-3°C - 7°C

Hardiness zone

5 - 8

Difficulty

Medium

Hibernation

Cold Period

How to Care for the Plant

Water
Water freshly planted penstemons for the first summer to help them establish on a dry soil. Water as needed.
Pruning
In autumn cut back the faded foliage by just a third to prevent windrock and then cut the remaining foliage back hard in spring after the last frost.
Fertilizer
In spring apply a general purpose fertiliser to your mixed borders. Water freshly planted penstemons for the first summer to help them establish on a dry soil.

Disease diagnosis

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Sunlight
Full sun, partial shade.
Soil
Perform well in most types of soil.
Temperature
Ideal temperatures should be approximately 65-75ºF + (18-24ºC +), closer to 70ºF is best.

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Popularity
30 people already have this plant 7 people have added this plant to their wishlists

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